[Jython-checkins] jython: Use latest version of datetime module from PyPy

jim.baker jython-checkins at python.org
Sat Feb 7 02:12:12 CET 2015


https://hg.python.org/jython/rev/daa6bf9a14d5
changeset:   7573:daa6bf9a14d5
user:        Jim Baker <jim.baker at rackspace.com>
date:        Fri Feb 06 18:11:56 2015 -0700
summary:
  Use latest version of datetime module from PyPy

Jython shares with PyPy its datetime module, so update to latest version
https://bitbucket.org/pypy/pypy/src/302f635e170f/lib_pypy/datetime.py

Fixes http://bugs.jython.org/issue2010

files:
  ACKNOWLEDGMENTS           |     1 +
  Lib/datetime.py           |  1003 +++---
  Lib/test/test_datetime.py |  3372 -------------------------
  3 files changed, 534 insertions(+), 3842 deletions(-)


diff --git a/ACKNOWLEDGMENTS b/ACKNOWLEDGMENTS
--- a/ACKNOWLEDGMENTS
+++ b/ACKNOWLEDGMENTS
@@ -33,6 +33,7 @@
 * JUnit, licenseed under Eclipse Public License 1.0 from the JUnit project
 * Mock Runner, licensed under the Apache 1.1 license
 * Netty 4, licensed under the Apache 2.0 license from the Netty project
+* PyPy datetime module, licensed under the MIT License from the PyPy project
 
 Jython follows closely the Python language and its reference
 implementation CPython, as created by Guido van Rossum.
diff --git a/Lib/datetime.py b/Lib/datetime.py
--- a/Lib/datetime.py
+++ b/Lib/datetime.py
@@ -16,19 +16,20 @@
 Thanks to Tim Peters for suggesting using it.
 """
 
+from __future__ import division
 import time as _time
 import math as _math
-import sys as _sys
+import struct as _struct
 
-if _sys.platform.startswith('java'):
-    from java.lang import Object
-    from java.sql import Date, Timestamp, Time
-    from java.util import Calendar
-    from org.python.core import Py
+def _cmp(x, y):
+    return 0 if x == y else 1 if x > y else -1
 
+def _round(x):
+    return int(_math.floor(x + 0.5) if x >= 0.0 else _math.ceil(x - 0.5))
 
 MINYEAR = 1
 MAXYEAR = 9999
+_MINYEARFMT = 1900
 
 # Utility functions, adapted from Python's Demo/classes/Dates.py, which
 # also assumes the current Gregorian calendar indefinitely extended in
@@ -39,9 +40,9 @@
 # for all computations.  See the book for algorithms for converting between
 # proleptic Gregorian ordinals and many other calendar systems.
 
-_DAYS_IN_MONTH = [None, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
+_DAYS_IN_MONTH = [-1, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
 
-_DAYS_BEFORE_MONTH = [None]
+_DAYS_BEFORE_MONTH = [-1]
 dbm = 0
 for dim in _DAYS_IN_MONTH[1:]:
     _DAYS_BEFORE_MONTH.append(dbm)
@@ -52,10 +53,6 @@
     "year -> 1 if leap year, else 0."
     return year % 4 == 0 and (year % 100 != 0 or year % 400 == 0)
 
-def _days_in_year(year):
-    "year -> number of days in year (366 if a leap year, else 365)."
-    return 365 + _is_leap(year)
-
 def _days_before_year(year):
     "year -> number of days before January 1st of year."
     y = year - 1
@@ -69,18 +66,15 @@
     return _DAYS_IN_MONTH[month]
 
 def _days_before_month(year, month):
-    "year, month -> number of days in year preceeding first day of month."
-    if not 1 <= month <= 12:
-        raise ValueError('month must be in 1..12', month)
+    "year, month -> number of days in year preceding first day of month."
+    assert 1 <= month <= 12, 'month must be in 1..12'
     return _DAYS_BEFORE_MONTH[month] + (month > 2 and _is_leap(year))
 
 def _ymd2ord(year, month, day):
     "year, month, day -> ordinal, considering 01-Jan-0001 as day 1."
-    if not 1 <= month <= 12:
-        raise ValueError('month must be in 1..12', month)
+    assert 1 <= month <= 12, 'month must be in 1..12'
     dim = _days_in_month(year, month)
-    if not 1 <= day <= dim:
-        raise ValueError('day must be in 1..%d' % dim, day)
+    assert 1 <= day <= dim, ('day must be in 1..%d' % dim)
     return (_days_before_year(year) +
             _days_before_month(year, month) +
             day)
@@ -182,14 +176,16 @@
     return result
 
 # Correctly substitute for %z and %Z escapes in strftime formats.
-def _wrap_strftime(object, format, timetuple, microsecond=0):
+def _wrap_strftime(object, format, timetuple):
     year = timetuple[0]
-    if year < 1900:
-        raise ValueError("year=%d is before 1900; the datetime strftime() "
-                         "methods require year >= 1900" % year)
-    # Don't call _utcoffset() or tzname() unless actually needed.
-    zreplace = None # the string to use for %z
-    Zreplace = None # the string to use for %Z
+    if year < _MINYEARFMT:
+        raise ValueError("year=%d is before %d; the datetime strftime() "
+                         "methods require year >= %d" %
+                         (year, _MINYEARFMT, _MINYEARFMT))
+    # Don't call utcoffset() or tzname() unless actually needed.
+    freplace = None  # the string to use for %f
+    zreplace = None  # the string to use for %z
+    Zreplace = None  # the string to use for %Z
 
     # Scan format for %z and %Z escapes, replacing as needed.
     newformat = []
@@ -202,7 +198,12 @@
             if i < n:
                 ch = format[i]
                 i += 1
-                if ch == 'z':
+                if ch == 'f':
+                    if freplace is None:
+                        freplace = '%06d' % getattr(object,
+                                                    'microsecond', 0)
+                    newformat.append(freplace)
+                elif ch == 'z':
                     if zreplace is None:
                         zreplace = ""
                         if hasattr(object, "_utcoffset"):
@@ -225,9 +226,6 @@
                                 # strftime is going to have at this: escape %
                                 Zreplace = s.replace('%', '%%')
                     newformat.append(Zreplace)
-                elif ch == 'f':
-                    us_string = '%.06d' % microsecond
-                    newformat.append(us_string)
                 else:
                     push('%')
                     push(ch)
@@ -238,11 +236,6 @@
     newformat = "".join(newformat)
     return _time.strftime(newformat, timetuple)
 
-def _call_tzinfo_method(tzinfo, methname, tzinfoarg):
-    if tzinfo is None:
-        return None
-    return getattr(tzinfo, methname)(tzinfoarg)
-
 # Just raise TypeError if the arg isn't None or a string.
 def _check_tzname(name):
     if name is not None and not isinstance(name, str):
@@ -258,7 +251,7 @@
 def _check_utc_offset(name, offset):
     assert name in ("utcoffset", "dst")
     if offset is None:
-        return None
+        return
     if not isinstance(offset, timedelta):
         raise TypeError("tzinfo.%s() must return None "
                         "or timedelta, not '%s'" % (name, type(offset)))
@@ -272,11 +265,29 @@
             raise ValueError("tzinfo.%s() must return a whole number "
                              "of minutes" % name)
         offset = minutes
-    if -1440 < offset < 1440:
-        return offset
-    raise ValueError("%s()=%d, must be in -1439..1439" % (name, offset))
+    if not -1440 < offset < 1440:
+        raise ValueError("%s()=%d, must be in -1439..1439" % (name, offset))
+    return offset
+
+def _check_int_field(value):
+    if isinstance(value, int):
+        return value
+    if not isinstance(value, float):
+        try:
+            value = value.__int__()
+        except AttributeError:
+            pass
+        else:
+            if isinstance(value, (int, long)):
+                return value
+            raise TypeError('__int__ method should return an integer')
+        raise TypeError('an integer is required')
+    raise TypeError('integer argument expected, got float')
 
 def _check_date_fields(year, month, day):
+    year = _check_int_field(year)
+    month = _check_int_field(month)
+    day = _check_int_field(day)
     if not MINYEAR <= year <= MAXYEAR:
         raise ValueError('year must be in %d..%d' % (MINYEAR, MAXYEAR), year)
     if not 1 <= month <= 12:
@@ -284,8 +295,13 @@
     dim = _days_in_month(year, month)
     if not 1 <= day <= dim:
         raise ValueError('day must be in 1..%d' % dim, day)
+    return year, month, day
 
 def _check_time_fields(hour, minute, second, microsecond):
+    hour = _check_int_field(hour)
+    minute = _check_int_field(minute)
+    second = _check_int_field(second)
+    microsecond = _check_int_field(microsecond)
     if not 0 <= hour <= 23:
         raise ValueError('hour must be in 0..23', hour)
     if not 0 <= minute <= 59:
@@ -294,6 +310,7 @@
         raise ValueError('second must be in 0..59', second)
     if not 0 <= microsecond <= 999999:
         raise ValueError('microsecond must be in 0..999999', microsecond)
+    return hour, minute, second, microsecond
 
 def _check_tzinfo_arg(tz):
     if tz is not None and not isinstance(tz, tzinfo):
@@ -336,9 +353,7 @@
 # second-guess timezones or DST.  Instead fold whatever adjustments you want
 # into the minutes argument (and the constructor will normalize).
 
-_ORD1970 = _ymd2ord(1970, 1, 1) # base ordinal for UNIX epoch
-
-class tmxxx:
+class _tmxxx:
 
     ordinal = None
 
@@ -399,32 +414,6 @@
         self.hour, self.minute, self.second = hour, minute, second
         self.microsecond = microsecond
 
-    def toordinal(self):
-        """Return proleptic Gregorian ordinal for the year, month and day.
-
-        January 1 of year 1 is day 1.  Only the year, month and day values
-        contribute to the result.
-        """
-        if self.ordinal is None:
-            self.ordinal = _ymd2ord(self.year, self.month, self.day)
-        return self.ordinal
-
-    def time(self):
-        "Return Unixish timestamp, as a float (assuming UTC)."
-        days = self.toordinal() - _ORD1970   # convert to UNIX epoch
-        seconds = ((days * 24. + self.hour)*60. + self.minute)*60.
-        return seconds + self.second + self.microsecond / 1e6
-
-    def ctime(self):
-        "Return ctime() style string."
-        weekday = self.toordinal() % 7 or 7
-        return "%s %s %2d %02d:%02d:%02d %04d" % (
-            _DAYNAMES[weekday],
-            _MONTHNAMES[self.month],
-            self.day,
-            self.hour, self.minute, self.second,
-            self.year)
-
 class timedelta(object):
     """Represent the difference between two datetime objects.
 
@@ -442,9 +431,9 @@
     Representation: (days, seconds, microseconds).  Why?  Because I
     felt like it.
     """
+    __slots__ = '_days', '_seconds', '_microseconds', '_hashcode'
 
     def __new__(cls, days=0, seconds=0, microseconds=0,
-                # XXX The following should only be used as keyword args:
                 milliseconds=0, minutes=0, hours=0, weeks=0):
         # Doing this efficiently and accurately in C is going to be difficult
         # and error-prone, due to ubiquitous overflow possibilities, and that
@@ -472,8 +461,8 @@
             daysecondsfrac, daysecondswhole = _math.modf(dayfrac * (24.*3600.))
             assert daysecondswhole == int(daysecondswhole)  # can't overflow
             s = int(daysecondswhole)
-            assert days == long(days)
-            d = long(days)
+            assert days == int(days)
+            d = int(days)
         else:
             daysecondsfrac = 0.0
             d = days
@@ -485,8 +474,8 @@
 
         if isinstance(seconds, float):
             secondsfrac, seconds = _math.modf(seconds)
-            assert seconds == long(seconds)
-            seconds = long(seconds)
+            assert seconds == int(seconds)
+            seconds = int(seconds)
             secondsfrac += daysecondsfrac
             assert abs(secondsfrac) <= 2.0
         else:
@@ -508,38 +497,27 @@
         # secondsfrac isn't referenced again
 
         if isinstance(microseconds, float):
-            microseconds += usdouble
-            microseconds = round(microseconds)
-            seconds, microseconds = divmod(microseconds, 1e6)
-            assert microseconds == int(microseconds)
-            assert seconds == long(seconds)
-            days, seconds = divmod(seconds, 24.*3600.)
-            assert days == long(days)
-            assert seconds == int(seconds)
-            d += long(days)
-            s += int(seconds)   # can't overflow
-            assert isinstance(s, int)
-            assert abs(s) <= 3 * 24 * 3600
-        else:
+            microseconds = _round(microseconds + usdouble)
             seconds, microseconds = divmod(microseconds, 1000000)
             days, seconds = divmod(seconds, 24*3600)
             d += days
-            s += int(seconds)    # can't overflow
-            assert isinstance(s, int)
-            assert abs(s) <= 3 * 24 * 3600
-            microseconds = float(microseconds)
-            microseconds += usdouble
-            microseconds = round(microseconds)
+            s += int(seconds)
+            microseconds = int(microseconds)
+        else:
+            microseconds = int(microseconds)
+            seconds, microseconds = divmod(microseconds, 1000000)
+            days, seconds = divmod(seconds, 24*3600)
+            d += days
+            s += int(seconds)
+            microseconds = _round(microseconds + usdouble)
+        assert isinstance(s, int)
+        assert isinstance(microseconds, int)
         assert abs(s) <= 3 * 24 * 3600
         assert abs(microseconds) < 3.1e6
 
         # Just a little bit of carrying possible for microseconds and seconds.
-        assert isinstance(microseconds, float)
-        assert int(microseconds) == microseconds
-        us = int(microseconds)
-        seconds, us = divmod(us, 1000000)
-        s += seconds    # cant't overflow
-        assert isinstance(s, int)
+        seconds, us = divmod(microseconds, 1000000)
+        s += seconds
         days, s = divmod(s, 24*3600)
         d += days
 
@@ -547,59 +525,79 @@
         assert isinstance(s, int) and 0 <= s < 24*3600
         assert isinstance(us, int) and 0 <= us < 1000000
 
-        self = object.__new__(cls)
-
-        self.__days = d
-        self.__seconds = s
-        self.__microseconds = us
         if abs(d) > 999999999:
             raise OverflowError("timedelta # of days is too large: %d" % d)
 
+        self = object.__new__(cls)
+        self._days = d
+        self._seconds = s
+        self._microseconds = us
+        self._hashcode = -1
         return self
 
     def __repr__(self):
-        if self.__microseconds:
+        if self._microseconds:
             return "%s(%d, %d, %d)" % ('datetime.' + self.__class__.__name__,
-                                       self.__days,
-                                       self.__seconds,
-                                       self.__microseconds)
-        if self.__seconds:
+                                       self._days,
+                                       self._seconds,
+                                       self._microseconds)
+        if self._seconds:
             return "%s(%d, %d)" % ('datetime.' + self.__class__.__name__,
-                                   self.__days,
-                                   self.__seconds)
-        return "%s(%d)" % ('datetime.' + self.__class__.__name__, self.__days)
+                                   self._days,
+                                   self._seconds)
+        return "%s(%d)" % ('datetime.' + self.__class__.__name__, self._days)
 
     def __str__(self):
-        mm, ss = divmod(self.__seconds, 60)
+        mm, ss = divmod(self._seconds, 60)
         hh, mm = divmod(mm, 60)
         s = "%d:%02d:%02d" % (hh, mm, ss)
-        if self.__days:
+        if self._days:
             def plural(n):
                 return n, abs(n) != 1 and "s" or ""
-            s = ("%d day%s, " % plural(self.__days)) + s
-        if self.__microseconds:
-            s = s + ".%06d" % self.__microseconds
+            s = ("%d day%s, " % plural(self._days)) + s
+        if self._microseconds:
+            s = s + ".%06d" % self._microseconds
         return s
 
-    days = property(lambda self: self.__days, doc="days")
-    seconds = property(lambda self: self.__seconds, doc="seconds")
-    microseconds = property(lambda self: self.__microseconds,
-                            doc="microseconds")
+    def total_seconds(self):
+        """Total seconds in the duration."""
+        return ((self.days * 86400 + self.seconds) * 10**6 +
+                self.microseconds) / 10**6
+
+    # Read-only field accessors
+    @property
+    def days(self):
+        """days"""
+        return self._days
+
+    @property
+    def seconds(self):
+        """seconds"""
+        return self._seconds
+
+    @property
+    def microseconds(self):
+        """microseconds"""
+        return self._microseconds
 
     def __add__(self, other):
         if isinstance(other, timedelta):
             # for CPython compatibility, we cannot use
             # our __class__ here, but need a real timedelta
-            return timedelta(self.__days + other.__days,
-                             self.__seconds + other.__seconds,
-                             self.__microseconds + other.__microseconds)
+            return timedelta(self._days + other._days,
+                             self._seconds + other._seconds,
+                             self._microseconds + other._microseconds)
         return NotImplemented
 
     __radd__ = __add__
 
     def __sub__(self, other):
         if isinstance(other, timedelta):
-            return self + -other
+            # for CPython compatibility, we cannot use
+            # our __class__ here, but need a real timedelta
+            return timedelta(self._days - other._days,
+                             self._seconds - other._seconds,
+                             self._microseconds - other._microseconds)
         return NotImplemented
 
     def __rsub__(self, other):
@@ -608,17 +606,17 @@
         return NotImplemented
 
     def __neg__(self):
-            # for CPython compatibility, we cannot use
-            # our __class__ here, but need a real timedelta
-        return timedelta(-self.__days,
-                         -self.__seconds,
-                         -self.__microseconds)
+        # for CPython compatibility, we cannot use
+        # our __class__ here, but need a real timedelta
+        return timedelta(-self._days,
+                         -self._seconds,
+                         -self._microseconds)
 
     def __pos__(self):
         return self
 
     def __abs__(self):
-        if self.__days < 0:
+        if self._days < 0:
             return -self
         else:
             return self
@@ -627,81 +625,84 @@
         if isinstance(other, (int, long)):
             # for CPython compatibility, we cannot use
             # our __class__ here, but need a real timedelta
-            return timedelta(self.__days * other,
-                             self.__seconds * other,
-                             self.__microseconds * other)
+            return timedelta(self._days * other,
+                             self._seconds * other,
+                             self._microseconds * other)
         return NotImplemented
 
     __rmul__ = __mul__
 
+    def _to_microseconds(self):
+        return ((self._days * (24*3600) + self._seconds) * 1000000 +
+                self._microseconds)
+
     def __div__(self, other):
-        if isinstance(other, (int, long)):
-            usec = ((self.__days * (24*3600L) + self.__seconds) * 1000000 +
-                    self.__microseconds)
-            return timedelta(0, 0, usec // other)
-        return NotImplemented
+        if not isinstance(other, (int, long)):
+            return NotImplemented
+        usec = self._to_microseconds()
+        return timedelta(0, 0, usec // other)
 
     __floordiv__ = __div__
 
-    # Comparisons.
+    # Comparisons of timedelta objects with other.
 
     def __eq__(self, other):
         if isinstance(other, timedelta):
-            return self.__cmp(other) == 0
+            return self._cmp(other) == 0
         else:
             return False
 
     def __ne__(self, other):
         if isinstance(other, timedelta):
-            return self.__cmp(other) != 0
+            return self._cmp(other) != 0
         else:
             return True
 
     def __le__(self, other):
         if isinstance(other, timedelta):
-            return self.__cmp(other) <= 0
+            return self._cmp(other) <= 0
         else:
             _cmperror(self, other)
 
     def __lt__(self, other):
         if isinstance(other, timedelta):
-            return self.__cmp(other) < 0
+            return self._cmp(other) < 0
         else:
             _cmperror(self, other)
 
     def __ge__(self, other):
         if isinstance(other, timedelta):
-            return self.__cmp(other) >= 0
+            return self._cmp(other) >= 0
         else:
             _cmperror(self, other)
 
     def __gt__(self, other):
         if isinstance(other, timedelta):
-            return self.__cmp(other) > 0
+            return self._cmp(other) > 0
         else:
             _cmperror(self, other)
 
-    def __cmp(self, other):
+    def _cmp(self, other):
         assert isinstance(other, timedelta)
-        return cmp(self.__getstate(), other.__getstate())
+        return _cmp(self._getstate(), other._getstate())
 
     def __hash__(self):
-        return hash(self.__getstate())
+        if self._hashcode == -1:
+            self._hashcode = hash(self._getstate())
+        return self._hashcode
 
     def __nonzero__(self):
-        return (self.__days != 0 or
-                self.__seconds != 0 or
-                self.__microseconds != 0)
+        return (self._days != 0 or
+                self._seconds != 0 or
+                self._microseconds != 0)
 
     # Pickle support.
 
-    __safe_for_unpickling__ = True      # For Python 2.2
-
-    def __getstate(self):
-        return (self.__days, self.__seconds, self.__microseconds)
+    def _getstate(self):
+        return (self._days, self._seconds, self._microseconds)
 
     def __reduce__(self):
-        return (self.__class__, self.__getstate())
+        return (self.__class__, self._getstate())
 
 timedelta.min = timedelta(-999999999)
 timedelta.max = timedelta(days=999999999, hours=23, minutes=59, seconds=59,
@@ -736,6 +737,7 @@
     Properties (readonly):
     year, month, day
     """
+    __slots__ = '_year', '_month', '_day', '_hashcode'
 
     def __new__(cls, year, month=None, day=None):
         """Constructor.
@@ -744,32 +746,36 @@
 
         year, month, day (required, base 1)
         """
-        if isinstance(year, str):
+        if month is None and isinstance(year, bytes) and len(year) == 4 and \
+                1 <= ord(year[2]) <= 12:
             # Pickle support
             self = object.__new__(cls)
             self.__setstate(year)
+            self._hashcode = -1
             return self
-        _check_date_fields(year, month, day)
+        year, month, day = _check_date_fields(year, month, day)
         self = object.__new__(cls)
-        self.__year = year
-        self.__month = month
-        self.__day = day
+        self._year = year
+        self._month = month
+        self._day = day
+        self._hashcode = -1
         return self
 
     # Additional constructors
 
+    @classmethod
     def fromtimestamp(cls, t):
         "Construct a date from a POSIX timestamp (like time.time())."
         y, m, d, hh, mm, ss, weekday, jday, dst = _time.localtime(t)
         return cls(y, m, d)
-    fromtimestamp = classmethod(fromtimestamp)
 
+    @classmethod
     def today(cls):
         "Construct a date from time.time()."
         t = _time.time()
         return cls.fromtimestamp(t)
-    today = classmethod(today)
 
+    @classmethod
     def fromordinal(cls, n):
         """Contruct a date from a proleptic Gregorian ordinal.
 
@@ -778,29 +784,50 @@
         """
         y, m, d = _ord2ymd(n)
         return cls(y, m, d)
-    fromordinal = classmethod(fromordinal)
 
     # Conversions to string
 
     def __repr__(self):
-        "Convert to formal string, for repr()."
+        """Convert to formal string, for repr().
+
+        >>> dt = datetime(2010, 1, 1)
+        >>> repr(dt)
+        'datetime.datetime(2010, 1, 1, 0, 0)'
+
+        >>> dt = datetime(2010, 1, 1, tzinfo=timezone.utc)
+        >>> repr(dt)
+        'datetime.datetime(2010, 1, 1, 0, 0, tzinfo=datetime.timezone.utc)'
+        """
         return "%s(%d, %d, %d)" % ('datetime.' + self.__class__.__name__,
-                                   self.__year,
-                                   self.__month,
-                                   self.__day)
+                                   self._year,
+                                   self._month,
+                                   self._day)
+
     # XXX These shouldn't depend on time.localtime(), because that
     # clips the usable dates to [1970 .. 2038).  At least ctime() is
     # easily done without using strftime() -- that's better too because
     # strftime("%c", ...) is locale specific.
 
     def ctime(self):
-        "Format a la ctime()."
-        return tmxxx(self.__year, self.__month, self.__day).ctime()
+        "Return ctime() style string."
+        weekday = self.toordinal() % 7 or 7
+        return "%s %s %2d 00:00:00 %04d" % (
+            _DAYNAMES[weekday],
+            _MONTHNAMES[self._month],
+            self._day, self._year)
 
     def strftime(self, fmt):
         "Format using strftime()."
         return _wrap_strftime(self, fmt, self.timetuple())
 
+    def __format__(self, fmt):
+        if not isinstance(fmt, (str, unicode)):
+            raise ValueError("__format__ expects str or unicode, not %s" %
+                             fmt.__class__.__name__)
+        if len(fmt) != 0:
+            return self.strftime(fmt)
+        return str(self)
+
     def isoformat(self):
         """Return the date formatted according to ISO.
 
@@ -810,21 +837,31 @@
         - http://www.w3.org/TR/NOTE-datetime
         - http://www.cl.cam.ac.uk/~mgk25/iso-time.html
         """
-        return "%04d-%02d-%02d" % (self.__year, self.__month, self.__day)
+        return "%04d-%02d-%02d" % (self._year, self._month, self._day)
 
     __str__ = isoformat
 
     # Read-only field accessors
-    year = property(lambda self: self.__year,
-                    doc="year (%d-%d)" % (MINYEAR, MAXYEAR))
-    month = property(lambda self: self.__month, doc="month (1-12)")
-    day = property(lambda self: self.__day, doc="day (1-31)")
+    @property
+    def year(self):
+        """year (1-9999)"""
+        return self._year
+
+    @property
+    def month(self):
+        """month (1-12)"""
+        return self._month
+
+    @property
+    def day(self):
+        """day (1-31)"""
+        return self._day
 
     # Standard conversions, __cmp__, __hash__ (and helpers)
 
     def timetuple(self):
         "Return local time tuple compatible with time.localtime()."
-        return _build_struct_time(self.__year, self.__month, self.__day,
+        return _build_struct_time(self._year, self._month, self._day,
                                   0, 0, 0, -1)
 
     def toordinal(self):
@@ -833,24 +870,23 @@
         January 1 of year 1 is day 1.  Only the year, month and day values
         contribute to the result.
         """
-        return _ymd2ord(self.__year, self.__month, self.__day)
+        return _ymd2ord(self._year, self._month, self._day)
 
     def replace(self, year=None, month=None, day=None):
         """Return a new date with new values for the specified fields."""
         if year is None:
-            year = self.__year
+            year = self._year
         if month is None:
-            month = self.__month
+            month = self._month
         if day is None:
-            day = self.__day
-        _check_date_fields(year, month, day)
+            day = self._day
         return date(year, month, day)
 
-    # Comparisons.
+    # Comparisons of date objects with other.
 
     def __eq__(self, other):
         if isinstance(other, date):
-            return self.__cmp(other) == 0
+            return self._cmp(other) == 0
         elif hasattr(other, "timetuple"):
             return NotImplemented
         else:
@@ -858,7 +894,7 @@
 
     def __ne__(self, other):
         if isinstance(other, date):
-            return self.__cmp(other) != 0
+            return self._cmp(other) != 0
         elif hasattr(other, "timetuple"):
             return NotImplemented
         else:
@@ -866,7 +902,7 @@
 
     def __le__(self, other):
         if isinstance(other, date):
-            return self.__cmp(other) <= 0
+            return self._cmp(other) <= 0
         elif hasattr(other, "timetuple"):
             return NotImplemented
         else:
@@ -874,7 +910,7 @@
 
     def __lt__(self, other):
         if isinstance(other, date):
-            return self.__cmp(other) < 0
+            return self._cmp(other) < 0
         elif hasattr(other, "timetuple"):
             return NotImplemented
         else:
@@ -882,7 +918,7 @@
 
     def __ge__(self, other):
         if isinstance(other, date):
-            return self.__cmp(other) >= 0
+            return self._cmp(other) >= 0
         elif hasattr(other, "timetuple"):
             return NotImplemented
         else:
@@ -890,21 +926,23 @@
 
     def __gt__(self, other):
         if isinstance(other, date):
-            return self.__cmp(other) > 0
+            return self._cmp(other) > 0
         elif hasattr(other, "timetuple"):
             return NotImplemented
         else:
             _cmperror(self, other)
 
-    def __cmp(self, other):
+    def _cmp(self, other):
         assert isinstance(other, date)
-        y, m, d = self.__year, self.__month, self.__day
-        y2, m2, d2 = other.__year, other.__month, other.__day
-        return cmp((y, m, d), (y2, m2, d2))
+        y, m, d = self._year, self._month, self._day
+        y2, m2, d2 = other._year, other._month, other._day
+        return _cmp((y, m, d), (y2, m2, d2))
 
     def __hash__(self):
         "Hash."
-        return hash(self.__getstate())
+        if self._hashcode == -1:
+            self._hashcode = hash(self._getstate())
+        return self._hashcode
 
     # Computations
 
@@ -916,14 +954,13 @@
     def __add__(self, other):
         "Add a date to a timedelta."
         if isinstance(other, timedelta):
-            t = tmxxx(self.__year,
-                      self.__month,
-                      self.__day + other.days)
+            t = _tmxxx(self._year,
+                      self._month,
+                      self._day + other.days)
             self._checkOverflow(t.year)
             result = date(t.year, t.month, t.day)
             return result
-        raise TypeError
-        # XXX Should be 'return NotImplemented', but there's a bug in 2.2...
+        return NotImplemented
 
     __radd__ = __add__
 
@@ -960,9 +997,9 @@
         ISO calendar algorithm taken from
         http://www.phys.uu.nl/~vgent/calendar/isocalendar.htm
         """
-        year = self.__year
+        year = self._year
         week1monday = _isoweek1monday(year)
-        today = _ymd2ord(self.__year, self.__month, self.__day)
+        today = _ymd2ord(self._year, self._month, self._day)
         # Internally, week and day have origin 0
         week, day = divmod(today - week1monday, 7)
         if week < 0:
@@ -977,34 +1014,17 @@
 
     # Pickle support.
 
-    __safe_for_unpickling__ = True      # For Python 2.2
-
-    def __getstate(self):
-        yhi, ylo = divmod(self.__year, 256)
-        return ("%c%c%c%c" % (yhi, ylo, self.__month, self.__day), )
+    def _getstate(self):
+        yhi, ylo = divmod(self._year, 256)
+        return (_struct.pack('4B', yhi, ylo, self._month, self._day),)
 
     def __setstate(self, string):
-        if len(string) != 4 or not (1 <= ord(string[2]) <= 12):
-            raise TypeError("not enough arguments")
-        yhi, ylo, self.__month, self.__day = map(ord, string)
-        self.__year = yhi * 256 + ylo
+        yhi, ylo, self._month, self._day = (ord(string[0]), ord(string[1]),
+                                            ord(string[2]), ord(string[3]))
+        self._year = yhi * 256 + ylo
 
     def __reduce__(self):
-        return (self.__class__, self.__getstate())
-
-    if _sys.platform.startswith('java'):
-        def __tojava__(self, java_class):
-            if java_class not in (Calendar, Date, Object):
-                return Py.NoConversion
-
-            calendar = Calendar.getInstance()
-            calendar.clear()
-            calendar.set(self.year, self.month - 1, self.day)
-            if java_class == Calendar:
-                return calendar
-            else:
-                return Date(calendar.getTimeInMillis())
-
+        return (self.__class__, self._getstate())
 
 _date_class = date  # so functions w/ args named "date" can get at the class
 
@@ -1017,6 +1037,7 @@
 
     Subclasses must override the name(), utcoffset() and dst() methods.
     """
+    __slots__ = ()
 
     def tzname(self, dt):
         "datetime -> string name of time zone."
@@ -1066,8 +1087,6 @@
 
     # Pickle support.
 
-    __safe_for_unpickling__ = True      # For Python 2.2
-
     def __reduce__(self):
         getinitargs = getattr(self, "__getinitargs__", None)
         if getinitargs:
@@ -1084,7 +1103,7 @@
         else:
             return (self.__class__, args, state)
 
-_tzinfo_class = tzinfo   # so functions w/ args named "tinfo" can get at it
+_tzinfo_class = tzinfo
 
 class time(object):
     """Time with time zone.
@@ -1109,6 +1128,7 @@
     Properties (readonly):
     hour, minute, second, microsecond, tzinfo
     """
+    __slots__ = '_hour', '_minute', '_second', '_microsecond', '_tzinfo', '_hashcode'
 
     def __new__(cls, hour=0, minute=0, second=0, microsecond=0, tzinfo=None):
         """Constructor.
@@ -1119,69 +1139,91 @@
         second, microsecond (default to zero)
         tzinfo (default to None)
         """
+        if isinstance(hour, bytes) and len(hour) == 6 and ord(hour[0]) < 24:
+            # Pickle support
+            self = object.__new__(cls)
+            self.__setstate(hour, minute or None)
+            self._hashcode = -1
+            return self
+        hour, minute, second, microsecond = _check_time_fields(
+            hour, minute, second, microsecond)
+        _check_tzinfo_arg(tzinfo)
         self = object.__new__(cls)
-        if isinstance(hour, str):
-            # Pickle support
-            self.__setstate(hour, minute or None)
-            return self
-        _check_tzinfo_arg(tzinfo)
-        _check_time_fields(hour, minute, second, microsecond)
-        self.__hour = hour
-        self.__minute = minute
-        self.__second = second
-        self.__microsecond = microsecond
+        self._hour = hour
+        self._minute = minute
+        self._second = second
+        self._microsecond = microsecond
         self._tzinfo = tzinfo
+        self._hashcode = -1
         return self
 
     # Read-only field accessors
-    hour = property(lambda self: self.__hour, doc="hour (0-23)")
-    minute = property(lambda self: self.__minute, doc="minute (0-59)")
-    second = property(lambda self: self.__second, doc="second (0-59)")
-    microsecond = property(lambda self: self.__microsecond,
-                           doc="microsecond (0-999999)")
-    tzinfo = property(lambda self: self._tzinfo, doc="timezone info object")
+    @property
+    def hour(self):
+        """hour (0-23)"""
+        return self._hour
+
+    @property
+    def minute(self):
+        """minute (0-59)"""
+        return self._minute
+
+    @property
+    def second(self):
+        """second (0-59)"""
+        return self._second
+
+    @property
+    def microsecond(self):
+        """microsecond (0-999999)"""
+        return self._microsecond
+
+    @property
+    def tzinfo(self):
+        """timezone info object"""
+        return self._tzinfo
 
     # Standard conversions, __hash__ (and helpers)
 
-    # Comparisons.
+    # Comparisons of time objects with other.
 
     def __eq__(self, other):
         if isinstance(other, time):
-            return self.__cmp(other) == 0
+            return self._cmp(other) == 0
         else:
             return False
 
     def __ne__(self, other):
         if isinstance(other, time):
-            return self.__cmp(other) != 0
+            return self._cmp(other) != 0
         else:
             return True
 
     def __le__(self, other):
         if isinstance(other, time):
-            return self.__cmp(other) <= 0
+            return self._cmp(other) <= 0
         else:
             _cmperror(self, other)
 
     def __lt__(self, other):
         if isinstance(other, time):
-            return self.__cmp(other) < 0
+            return self._cmp(other) < 0
         else:
             _cmperror(self, other)
 
     def __ge__(self, other):
         if isinstance(other, time):
-            return self.__cmp(other) >= 0
+            return self._cmp(other) >= 0
         else:
             _cmperror(self, other)
 
     def __gt__(self, other):
         if isinstance(other, time):
-            return self.__cmp(other) > 0
+            return self._cmp(other) > 0
         else:
             _cmperror(self, other)
 
-    def __cmp(self, other):
+    def _cmp(self, other):
         assert isinstance(other, time)
         mytz = self._tzinfo
         ottz = other._tzinfo
@@ -1195,27 +1237,30 @@
             base_compare = myoff == otoff
 
         if base_compare:
-            return cmp((self.__hour, self.__minute, self.__second,
-                        self.__microsecond),
-                       (other.__hour, other.__minute, other.__second,
-                        other.__microsecond))
+            return _cmp((self._hour, self._minute, self._second,
+                         self._microsecond),
+                        (other._hour, other._minute, other._second,
+                         other._microsecond))
         if myoff is None or otoff is None:
-            # XXX Buggy in 2.2.2.
-            raise TypeError("cannot compare naive and aware times")
-        myhhmm = self.__hour * 60 + self.__minute - myoff
-        othhmm = other.__hour * 60 + other.__minute - otoff
-        return cmp((myhhmm, self.__second, self.__microsecond),
-                   (othhmm, other.__second, other.__microsecond))
+            raise TypeError("can't compare offset-naive and offset-aware times")
+        myhhmm = self._hour * 60 + self._minute - myoff
+        othhmm = other._hour * 60 + other._minute - otoff
+        return _cmp((myhhmm, self._second, self._microsecond),
+                    (othhmm, other._second, other._microsecond))
 
     def __hash__(self):
         """Hash."""
-        tzoff = self._utcoffset()
-        if not tzoff: # zero or None
-            return hash(self.__getstate()[0])
-        h, m = divmod(self.hour * 60 + self.minute - tzoff, 60)
-        if 0 <= h < 24:
-            return hash(time(h, m, self.second, self.microsecond))
-        return hash((h, m, self.second, self.microsecond))
+        if self._hashcode == -1:
+            tzoff = self._utcoffset()
+            if not tzoff:  # zero or None
+                self._hashcode = hash(self._getstate()[0])
+            else:
+                h, m = divmod(self.hour * 60 + self.minute - tzoff, 60)
+                if 0 <= h < 24:
+                    self._hashcode = hash(time(h, m, self.second, self.microsecond))
+                else:
+                    self._hashcode = hash((h, m, self.second, self.microsecond))
+        return self._hashcode
 
     # Conversion to string
 
@@ -1235,14 +1280,14 @@
 
     def __repr__(self):
         """Convert to formal string, for repr()."""
-        if self.__microsecond != 0:
-            s = ", %d, %d" % (self.__second, self.__microsecond)
-        elif self.__second != 0:
-            s = ", %d" % self.__second
+        if self._microsecond != 0:
+            s = ", %d, %d" % (self._second, self._microsecond)
+        elif self._second != 0:
+            s = ", %d" % self._second
         else:
             s = ""
         s= "%s(%d, %d%s)" % ('datetime.' + self.__class__.__name__,
-                             self.__hour, self.__minute, s)
+                             self._hour, self._minute, s)
         if self._tzinfo is not None:
             assert s[-1:] == ")"
             s = s[:-1] + ", tzinfo=%r" % self._tzinfo + ")"
@@ -1254,8 +1299,8 @@
         This is 'HH:MM:SS.mmmmmm+zz:zz', or 'HH:MM:SS+zz:zz' if
         self.microsecond == 0.
         """
-        s = _format_time(self.__hour, self.__minute, self.__second,
-                         self.__microsecond)
+        s = _format_time(self._hour, self._minute, self._second,
+                         self._microsecond)
         tz = self._tzstr()
         if tz:
             s += tz
@@ -1267,19 +1312,29 @@
         """Format using strftime().  The date part of the timestamp passed
         to underlying strftime should not be used.
         """
-        # The year must be >= 1900 else Python's strftime implementation
+        # The year must be >= _MINYEARFMT else Python's strftime implementation
         # can raise a bogus exception.
         timetuple = (1900, 1, 1,
-                     self.__hour, self.__minute, self.__second,
+                     self._hour, self._minute, self._second,
                      0, 1, -1)
-        return _wrap_strftime(self, fmt, timetuple, self.microsecond)
+        return _wrap_strftime(self, fmt, timetuple)
+
+    def __format__(self, fmt):
+        if not isinstance(fmt, (str, unicode)):
+            raise ValueError("__format__ expects str or unicode, not %s" %
+                             fmt.__class__.__name__)
+        if len(fmt) != 0:
+            return self.strftime(fmt)
+        return str(self)
 
     # Timezone functions
 
     def utcoffset(self):
         """Return the timezone offset in minutes east of UTC (negative west of
         UTC)."""
-        offset = _call_tzinfo_method(self._tzinfo, "utcoffset", None)
+        if self._tzinfo is None:
+            return None
+        offset = self._tzinfo.utcoffset(None)
         offset = _check_utc_offset("utcoffset", offset)
         if offset is not None:
             offset = timedelta(minutes=offset)
@@ -1287,7 +1342,9 @@
 
     # Return an integer (or None) instead of a timedelta (or None).
     def _utcoffset(self):
-        offset = _call_tzinfo_method(self._tzinfo, "utcoffset", None)
+        if self._tzinfo is None:
+            return None
+        offset = self._tzinfo.utcoffset(None)
         offset = _check_utc_offset("utcoffset", offset)
         return offset
 
@@ -1298,7 +1355,9 @@
         it mean anything in particular. For example, "GMT", "UTC", "-500",
         "-5:00", "EDT", "US/Eastern", "America/New York" are all valid replies.
         """
-        name = _call_tzinfo_method(self._tzinfo, "tzname", None)
+        if self._tzinfo is None:
+            return None
+        name = self._tzinfo.tzname(None)
         _check_tzname(name)
         return name
 
@@ -1311,12 +1370,22 @@
         need to consult dst() unless you're interested in displaying the DST
         info.
         """
-        offset = _call_tzinfo_method(self._tzinfo, "dst", None)
+        if self._tzinfo is None:
+            return None
+        offset = self._tzinfo.dst(None)
         offset = _check_utc_offset("dst", offset)
         if offset is not None:
             offset = timedelta(minutes=offset)
         return offset
 
+    # Return an integer (or None) instead of a timedelta (or None).
+    def _dst(self):
+        if self._tzinfo is None:
+            return None
+        offset = self._tzinfo.dst(None)
+        offset = _check_utc_offset("dst", offset)
+        return offset
+
     def replace(self, hour=None, minute=None, second=None, microsecond=None,
                 tzinfo=True):
         """Return a new time with new values for the specified fields."""
@@ -1330,64 +1399,37 @@
             microsecond = self.microsecond
         if tzinfo is True:
             tzinfo = self.tzinfo
-        _check_time_fields(hour, minute, second, microsecond)
-        _check_tzinfo_arg(tzinfo)
         return time(hour, minute, second, microsecond, tzinfo)
 
-    # Return an integer (or None) instead of a timedelta (or None).
-    def _dst(self):
-        offset = _call_tzinfo_method(self._tzinfo, "dst", None)
-        offset = _check_utc_offset("dst", offset)
-        return offset
-
     def __nonzero__(self):
         if self.second or self.microsecond:
-            return 1
+            return True
         offset = self._utcoffset() or 0
-        return self.hour * 60 + self.minute - offset != 0
+        return self.hour * 60 + self.minute != offset
 
     # Pickle support.
 
-    __safe_for_unpickling__ = True      # For Python 2.2
-
-    def __getstate(self):
-        us2, us3 = divmod(self.__microsecond, 256)
+    def _getstate(self):
+        us2, us3 = divmod(self._microsecond, 256)
         us1, us2 = divmod(us2, 256)
-        basestate = ("%c" * 6) % (self.__hour, self.__minute, self.__second,
-                                  us1, us2, us3)
+        basestate = _struct.pack('6B', self._hour, self._minute, self._second,
+                                       us1, us2, us3)
         if self._tzinfo is None:
             return (basestate,)
         else:
             return (basestate, self._tzinfo)
 
     def __setstate(self, string, tzinfo):
-        if len(string) != 6 or ord(string[0]) >= 24:
-            raise TypeError("an integer is required")
-        self.__hour, self.__minute, self.__second, us1, us2, us3 = \
-                                                            map(ord, string)
-        self.__microsecond = (((us1 << 8) | us2) << 8) | us3
+        if tzinfo is not None and not isinstance(tzinfo, _tzinfo_class):
+            raise TypeError("bad tzinfo state arg")
+        self._hour, self._minute, self._second, us1, us2, us3 = (
+            ord(string[0]), ord(string[1]), ord(string[2]),
+            ord(string[3]), ord(string[4]), ord(string[5]))
+        self._microsecond = (((us1 << 8) | us2) << 8) | us3
         self._tzinfo = tzinfo
 
     def __reduce__(self):
-        return (time, self.__getstate())
-
-    if _sys.platform.startswith('java'):
-        def __tojava__(self, java_class):
-            # TODO, if self.tzinfo is not None, convert time to UTC
-            if java_class not in (Calendar, Time, Object):
-                return Py.NoConversion
-
-            calendar = Calendar.getInstance()
-            calendar.clear()
-            calendar.set(Calendar.HOUR_OF_DAY, self.hour)
-            calendar.set(Calendar.MINUTE, self.minute)
-            calendar.set(Calendar.SECOND, self.second)
-            calendar.set(Calendar.MILLISECOND, self.microsecond // 1000)
-            if java_class == Calendar:
-                return calendar
-            else:
-                return Time(calendar.getTimeInMillis())
-
+        return (time, self._getstate())
 
 _time_class = time  # so functions w/ args named "time" can get at the class
 
@@ -1396,39 +1438,65 @@
 time.resolution = timedelta(microseconds=1)
 
 class datetime(date):
+    """datetime(year, month, day[, hour[, minute[, second[, microsecond[,tzinfo]]]]])
 
-    # XXX needs docstrings
-    # See http://www.zope.org/Members/fdrake/DateTimeWiki/TimeZoneInfo
+    The year, month and day arguments are required. tzinfo may be None, or an
+    instance of a tzinfo subclass. The remaining arguments may be ints or longs.
+    """
+    __slots__ = date.__slots__ + time.__slots__
 
     def __new__(cls, year, month=None, day=None, hour=0, minute=0, second=0,
                 microsecond=0, tzinfo=None):
-        if isinstance(year, str):
+        if isinstance(year, bytes) and len(year) == 10 and \
+                1 <= ord(year[2]) <= 12:
             # Pickle support
-            self = date.__new__(cls, year[:4])
+            self = object.__new__(cls)
             self.__setstate(year, month)
+            self._hashcode = -1
             return self
+        year, month, day = _check_date_fields(year, month, day)
+        hour, minute, second, microsecond = _check_time_fields(
+            hour, minute, second, microsecond)
         _check_tzinfo_arg(tzinfo)
-        _check_time_fields(hour, minute, second, microsecond)
-        self = date.__new__(cls, year, month, day)
-        # XXX This duplicates __year, __month, __day for convenience :-(
-        self.__year = year
-        self.__month = month
-        self.__day = day
-        self.__hour = hour
-        self.__minute = minute
-        self.__second = second
-        self.__microsecond = microsecond
+        self = object.__new__(cls)
+        self._year = year
+        self._month = month
+        self._day = day
+        self._hour = hour
+        self._minute = minute
+        self._second = second
+        self._microsecond = microsecond
         self._tzinfo = tzinfo
+        self._hashcode = -1
         return self
 
     # Read-only field accessors
-    hour = property(lambda self: self.__hour, doc="hour (0-23)")
-    minute = property(lambda self: self.__minute, doc="minute (0-59)")
-    second = property(lambda self: self.__second, doc="second (0-59)")
-    microsecond = property(lambda self: self.__microsecond,
-                           doc="microsecond (0-999999)")
-    tzinfo = property(lambda self: self._tzinfo, doc="timezone info object")
+    @property
+    def hour(self):
+        """hour (0-23)"""
+        return self._hour
 
+    @property
+    def minute(self):
+        """minute (0-59)"""
+        return self._minute
+
+    @property
+    def second(self):
+        """second (0-59)"""
+        return self._second
+
+    @property
+    def microsecond(self):
+        """microsecond (0-999999)"""
+        return self._microsecond
+
+    @property
+    def tzinfo(self):
+        """timezone info object"""
+        return self._tzinfo
+
+    @classmethod
     def fromtimestamp(cls, t, tz=None):
         """Construct a datetime from a POSIX timestamp (like time.time()).
 
@@ -1436,53 +1504,56 @@
         """
 
         _check_tzinfo_arg(tz)
-        if tz is None:
-            converter = _time.localtime
-        else:
-            converter = _time.gmtime
+
+        converter = _time.localtime if tz is None else _time.gmtime
+
+        t, frac = divmod(t, 1.0)
+        us = _round(frac * 1e6)
+
+        # If timestamp is less than one microsecond smaller than a
+        # full second, us can be rounded up to 1000000.  In this case,
+        # roll over to seconds, otherwise, ValueError is raised
+        # by the constructor.
+        if us == 1000000:
+            t += 1
+            us = 0
         y, m, d, hh, mm, ss, weekday, jday, dst = converter(t)
-        us = int((t % 1.0) * 1000000)
-
-        if us == 1000001 or us == 999999:
-            us = 0
-            rounded = True
-        else:
-            rounded = False
-
         ss = min(ss, 59)    # clamp out leap seconds if the platform has them
         result = cls(y, m, d, hh, mm, ss, us, tz)
-        if rounded:
-            result += timedelta(seconds=1)
         if tz is not None:
             result = tz.fromutc(result)
         return result
-    fromtimestamp = classmethod(fromtimestamp)
 
+    @classmethod
     def utcfromtimestamp(cls, t):
         "Construct a UTC datetime from a POSIX timestamp (like time.time())."
+        t, frac = divmod(t, 1.0)
+        us = _round(frac * 1e6)
+
+        # If timestamp is less than one microsecond smaller than a
+        # full second, us can be rounded up to 1000000.  In this case,
+        # roll over to seconds, otherwise, ValueError is raised
+        # by the constructor.
+        if us == 1000000:
+            t += 1
+            us = 0
         y, m, d, hh, mm, ss, weekday, jday, dst = _time.gmtime(t)
-        us = int((t % 1.0) * 1000000)
         ss = min(ss, 59)    # clamp out leap seconds if the platform has them
         return cls(y, m, d, hh, mm, ss, us)
-    utcfromtimestamp = classmethod(utcfromtimestamp)
 
-    # XXX This is supposed to do better than we *can* do by using time.time(),
-    # XXX if the platform supports a more accurate way.  The C implementation
-    # XXX uses gettimeofday on platforms that have it, but that isn't
-    # XXX available from Python.  So now() may return different results
-    # XXX across the implementations.
+    @classmethod
     def now(cls, tz=None):
         "Construct a datetime from time.time() and optional time zone info."
         t = _time.time()
         return cls.fromtimestamp(t, tz)
-    now = classmethod(now)
 
+    @classmethod
     def utcnow(cls):
         "Construct a UTC datetime from time.time()."
         t = _time.time()
         return cls.utcfromtimestamp(t)
-    utcnow = classmethod(utcnow)
 
+    @classmethod
     def combine(cls, date, time):
         "Construct a datetime from a given date and a given time."
         if not isinstance(date, _date_class):
@@ -1492,16 +1563,6 @@
         return cls(date.year, date.month, date.day,
                    time.hour, time.minute, time.second, time.microsecond,
                    time.tzinfo)
-    combine = classmethod(combine)
-
-    def strptime(cls, date_string, format):
-        """datetime(year, month, day[, hour[, minute[, second[, microsecond[,tzinfo]]]]])
-
-        The year, month and day arguments are required. tzinfo may be None, or an
-        instance of a tzinfo subclass. The remaining arguments may be ints or longs."""
-        return cls(*(_time.strptime(date_string, format))[0:6])
-
-    strptime = classmethod(strptime)
 
     def timetuple(self):
         "Return local time tuple compatible with time.localtime()."
@@ -1520,14 +1581,14 @@
         hh, mm, ss = self.hour, self.minute, self.second
         offset = self._utcoffset()
         if offset:  # neither None nor 0
-            tm = tmxxx(y, m, d, hh, mm - offset)
+            tm = _tmxxx(y, m, d, hh, mm - offset)
             y, m, d = tm.year, tm.month, tm.day
             hh, mm = tm.hour, tm.minute
         return _build_struct_time(y, m, d, hh, mm, ss, 0)
 
     def date(self):
         "Return the date part."
-        return date(self.__year, self.__month, self.__day)
+        return date(self._year, self._month, self._day)
 
     def time(self):
         "Return the time part, with tzinfo None."
@@ -1557,11 +1618,8 @@
             microsecond = self.microsecond
         if tzinfo is True:
             tzinfo = self.tzinfo
-        _check_date_fields(year, month, day)
-        _check_time_fields(hour, minute, second, microsecond)
-        _check_tzinfo_arg(tzinfo)
-        return datetime(year, month, day, hour, minute, second,
-                          microsecond, tzinfo)
+        return datetime(year, month, day, hour, minute, second, microsecond,
+                        tzinfo)
 
     def astimezone(self, tz):
         if not isinstance(tz, tzinfo):
@@ -1586,10 +1644,14 @@
     # Ways to produce a string.
 
     def ctime(self):
-        "Format a la ctime()."
-        t = tmxxx(self.__year, self.__month, self.__day, self.__hour,
-                  self.__minute, self.__second)
-        return t.ctime()
+        "Return ctime() style string."
+        weekday = self.toordinal() % 7 or 7
+        return "%s %s %2d %02d:%02d:%02d %04d" % (
+            _DAYNAMES[weekday],
+            _MONTHNAMES[self._month],
+            self._day,
+            self._hour, self._minute, self._second,
+            self._year)
 
     def isoformat(self, sep='T'):
         """Return the time formatted according to ISO.
@@ -1603,10 +1665,9 @@
         Optional argument sep specifies the separator between date and
         time, default 'T'.
         """
-        s = ("%04d-%02d-%02d%c" % (self.__year, self.__month, self.__day,
-                                  sep) +
-                _format_time(self.__hour, self.__minute, self.__second,
-                             self.__microsecond))
+        s = ("%04d-%02d-%02d%c" % (self._year, self._month, self._day, sep) +
+             _format_time(self._hour, self._minute, self._second,
+                          self._microsecond))
         off = self._utcoffset()
         if off is not None:
             if off < 0:
@@ -1619,9 +1680,9 @@
         return s
 
     def __repr__(self):
-        "Convert to formal string, for repr()."
-        L = [self.__year, self.__month, self.__day, # These are never zero
-             self.__hour, self.__minute, self.__second, self.__microsecond]
+        """Convert to formal string, for repr()."""
+        L = [self._year, self._month, self._day,  # These are never zero
+             self._hour, self._minute, self._second, self._microsecond]
         if L[-1] == 0:
             del L[-1]
         if L[-1] == 0:
@@ -1637,14 +1698,22 @@
         "Convert to string, for str()."
         return self.isoformat(sep=' ')
 
-    def strftime(self, fmt):
-        "Format using strftime()."
-        return _wrap_strftime(self, fmt, self.timetuple(), self.microsecond)
+    @classmethod
+    def strptime(cls, date_string, format):
+        'string, format -> new datetime parsed from a string (like time.strptime()).'
+        from _strptime import _strptime
+        # _strptime._strptime returns a two-element tuple.  The first
+        # element is a time.struct_time object.  The second is the
+        # microseconds (which are not defined for time.struct_time).
+        struct, micros = _strptime(date_string, format)
+        return cls(*(struct[0:6] + (micros,)))
 
     def utcoffset(self):
         """Return the timezone offset in minutes east of UTC (negative west of
         UTC)."""
-        offset = _call_tzinfo_method(self._tzinfo, "utcoffset", self)
+        if self._tzinfo is None:
+            return None
+        offset = self._tzinfo.utcoffset(self)
         offset = _check_utc_offset("utcoffset", offset)
         if offset is not None:
             offset = timedelta(minutes=offset)
@@ -1652,7 +1721,9 @@
 
     # Return an integer (or None) instead of a timedelta (or None).
     def _utcoffset(self):
-        offset = _call_tzinfo_method(self._tzinfo, "utcoffset", self)
+        if self._tzinfo is None:
+            return None
+        offset = self._tzinfo.utcoffset(self)
         offset = _check_utc_offset("utcoffset", offset)
         return offset
 
@@ -1663,7 +1734,9 @@
         it mean anything in particular. For example, "GMT", "UTC", "-500",
         "-5:00", "EDT", "US/Eastern", "America/New York" are all valid replies.
         """
-        name = _call_tzinfo_method(self._tzinfo, "tzname", self)
+        if self._tzinfo is None:
+            return None
+        name = self._tzinfo.tzname(self)
         _check_tzname(name)
         return name
 
@@ -1676,23 +1749,27 @@
         need to consult dst() unless you're interested in displaying the DST
         info.
         """
-        offset = _call_tzinfo_method(self._tzinfo, "dst", self)
+        if self._tzinfo is None:
+            return None
+        offset = self._tzinfo.dst(self)
         offset = _check_utc_offset("dst", offset)
         if offset is not None:
             offset = timedelta(minutes=offset)
         return offset
 
-    # Return an integer (or None) instead of a timedelta (or None).1573
+    # Return an integer (or None) instead of a timedelta (or None).
     def _dst(self):
-        offset = _call_tzinfo_method(self._tzinfo, "dst", self)
+        if self._tzinfo is None:
+            return None
+        offset = self._tzinfo.dst(self)
         offset = _check_utc_offset("dst", offset)
         return offset
 
-    # Comparisons.
+    # Comparisons of datetime objects with other.
 
     def __eq__(self, other):
         if isinstance(other, datetime):
-            return self.__cmp(other) == 0
+            return self._cmp(other) == 0
         elif hasattr(other, "timetuple") and not isinstance(other, date):
             return NotImplemented
         else:
@@ -1700,7 +1777,7 @@
 
     def __ne__(self, other):
         if isinstance(other, datetime):
-            return self.__cmp(other) != 0
+            return self._cmp(other) != 0
         elif hasattr(other, "timetuple") and not isinstance(other, date):
             return NotImplemented
         else:
@@ -1708,7 +1785,7 @@
 
     def __le__(self, other):
         if isinstance(other, datetime):
-            return self.__cmp(other) <= 0
+            return self._cmp(other) <= 0
         elif hasattr(other, "timetuple") and not isinstance(other, date):
             return NotImplemented
         else:
@@ -1716,7 +1793,7 @@
 
     def __lt__(self, other):
         if isinstance(other, datetime):
-            return self.__cmp(other) < 0
+            return self._cmp(other) < 0
         elif hasattr(other, "timetuple") and not isinstance(other, date):
             return NotImplemented
         else:
@@ -1724,7 +1801,7 @@
 
     def __ge__(self, other):
         if isinstance(other, datetime):
-            return self.__cmp(other) >= 0
+            return self._cmp(other) >= 0
         elif hasattr(other, "timetuple") and not isinstance(other, date):
             return NotImplemented
         else:
@@ -1732,13 +1809,13 @@
 
     def __gt__(self, other):
         if isinstance(other, datetime):
-            return self.__cmp(other) > 0
+            return self._cmp(other) > 0
         elif hasattr(other, "timetuple") and not isinstance(other, date):
             return NotImplemented
         else:
             _cmperror(self, other)
 
-    def __cmp(self, other):
+    def _cmp(self, other):
         assert isinstance(other, datetime)
         mytz = self._tzinfo
         ottz = other._tzinfo
@@ -1754,15 +1831,14 @@
             base_compare = myoff == otoff
 
         if base_compare:
-            return cmp((self.__year, self.__month, self.__day,
-                        self.__hour, self.__minute, self.__second,
-                        self.__microsecond),
-                       (other.__year, other.__month, other.__day,
-                        other.__hour, other.__minute, other.__second,
-                        other.__microsecond))
+            return _cmp((self._year, self._month, self._day,
+                         self._hour, self._minute, self._second,
+                         self._microsecond),
+                        (other._year, other._month, other._day,
+                         other._hour, other._minute, other._second,
+                         other._microsecond))
         if myoff is None or otoff is None:
-            # XXX Buggy in 2.2.2.
-            raise TypeError("cannot compare naive and aware datetimes")
+            raise TypeError("can't compare offset-naive and offset-aware datetimes")
         # XXX What follows could be done more efficiently...
         diff = self - other     # this will take offsets into account
         if diff.days < 0:
@@ -1773,13 +1849,13 @@
         "Add a datetime and a timedelta."
         if not isinstance(other, timedelta):
             return NotImplemented
-        t = tmxxx(self.__year,
-                  self.__month,
-                  self.__day + other.days,
-                  self.__hour,
-                  self.__minute,
-                  self.__second + other.seconds,
-                  self.__microsecond + other.microseconds)
+        t = _tmxxx(self._year,
+                  self._month,
+                  self._day + other.days,
+                  self._hour,
+                  self._minute,
+                  self._second + other.seconds,
+                  self._microsecond + other.microseconds)
         self._checkOverflow(t.year)
         result = datetime(t.year, t.month, t.day,
                                 t.hour, t.minute, t.second,
@@ -1797,11 +1873,11 @@
 
         days1 = self.toordinal()
         days2 = other.toordinal()
-        secs1 = self.__second + self.__minute * 60 + self.__hour * 3600
-        secs2 = other.__second + other.__minute * 60 + other.__hour * 3600
+        secs1 = self._second + self._minute * 60 + self._hour * 3600
+        secs2 = other._second + other._minute * 60 + other._hour * 3600
         base = timedelta(days1 - days2,
                          secs1 - secs2,
-                         self.__microsecond - other.__microsecond)
+                         self._microsecond - other._microsecond)
         if self._tzinfo is other._tzinfo:
             return base
         myoff = self._utcoffset()
@@ -1809,61 +1885,48 @@
         if myoff == otoff:
             return base
         if myoff is None or otoff is None:
-            raise TypeError, "cannot mix naive and timezone-aware time"
+            raise TypeError("can't subtract offset-naive and offset-aware datetimes")
         return base + timedelta(minutes = otoff-myoff)
 
     def __hash__(self):
-        tzoff = self._utcoffset()
-        if tzoff is None:
-            return hash(self.__getstate()[0])
-        days = _ymd2ord(self.year, self.month, self.day)
-        seconds = self.hour * 3600 + (self.minute - tzoff) * 60 + self.second
-        return hash(timedelta(days, seconds, self.microsecond))
+        if self._hashcode == -1:
+            tzoff = self._utcoffset()
+            if tzoff is None:
+                self._hashcode = hash(self._getstate()[0])
+            else:
+                days = _ymd2ord(self.year, self.month, self.day)
+                seconds = self.hour * 3600 + (self.minute - tzoff) * 60 + self.second
+                self._hashcode = hash(timedelta(days, seconds, self.microsecond))
+        return self._hashcode
 
     # Pickle support.
 
-    __safe_for_unpickling__ = True      # For Python 2.2
-
-    def __getstate(self):
-        yhi, ylo = divmod(self.__year, 256)
-        us2, us3 = divmod(self.__microsecond, 256)
+    def _getstate(self):
+        yhi, ylo = divmod(self._year, 256)
+        us2, us3 = divmod(self._microsecond, 256)
         us1, us2 = divmod(us2, 256)
-        basestate = ("%c" * 10) % (yhi, ylo, self.__month, self.__day,
-                                   self.__hour, self.__minute, self.__second,
-                                   us1, us2, us3)
+        basestate = _struct.pack('10B', yhi, ylo, self._month, self._day,
+                                        self._hour, self._minute, self._second,
+                                        us1, us2, us3)
         if self._tzinfo is None:
             return (basestate,)
         else:
             return (basestate, self._tzinfo)
 
     def __setstate(self, string, tzinfo):
-        (yhi, ylo, self.__month, self.__day, self.__hour,
-         self.__minute, self.__second, us1, us2, us3) = map(ord, string)
-        self.__year = yhi * 256 + ylo
-        self.__microsecond = (((us1 << 8) | us2) << 8) | us3
+        if tzinfo is not None and not isinstance(tzinfo, _tzinfo_class):
+            raise TypeError("bad tzinfo state arg")
+        (yhi, ylo, self._month, self._day, self._hour,
+            self._minute, self._second, us1, us2, us3) = (ord(string[0]),
+                ord(string[1]), ord(string[2]), ord(string[3]),
+                ord(string[4]), ord(string[5]), ord(string[6]),
+                ord(string[7]), ord(string[8]), ord(string[9]))
+        self._year = yhi * 256 + ylo
+        self._microsecond = (((us1 << 8) | us2) << 8) | us3
         self._tzinfo = tzinfo
 
     def __reduce__(self):
-        return (self.__class__, self.__getstate())
-
-    if _sys.platform.startswith('java'):
-        def __tojava__(self, java_class):
-            # TODO, if self.tzinfo is not None, convert time to UTC
-            if java_class not in (Calendar, Timestamp, Object):
-                return Py.NoConversion
-
-            calendar = Calendar.getInstance()
-            calendar.clear()
-            calendar.set(self.year, self.month - 1, self.day,
-                         self.hour, self.minute, self.second)
-
-            if java_class == Calendar:
-                calendar.set(Calendar.MILLISECOND, self.microsecond // 1000)
-                return calendar
-            else:
-                timestamp = Timestamp(calendar.getTimeInMillis())
-                timestamp.setNanos(self.microsecond * 1000)
-                return timestamp
+        return (self.__class__, self._getstate())
 
 
 datetime.min = datetime(1, 1, 1)
@@ -1876,7 +1939,7 @@
     # XXX This could be done more efficiently
     THURSDAY = 3
     firstday = _ymd2ord(year, 1, 1)
-    firstweekday = (firstday + 6) % 7 # See weekday() above
+    firstweekday = (firstday + 6) % 7  # See weekday() above
     week1monday = firstday - firstweekday
     if firstweekday > THURSDAY:
         week1monday += 7
@@ -2045,7 +2108,7 @@
 
 Because we know z.d said z was in daylight time (else [5] would have held and
 we would have stopped then), and we know z.d != z'.d (else [8] would have held
-and we we have stopped then), and there are only 2 possible values dst() can
+and we have stopped then), and there are only 2 possible values dst() can
 return in Eastern, it follows that z'.d must be 0 (which it is in the example,
 but the reasoning doesn't depend on the example -- it depends on there being
 two possible dst() outcomes, one zero and the other non-zero).  Therefore
diff --git a/Lib/test/test_datetime.py b/Lib/test/test_datetime.py
deleted file mode 100644
--- a/Lib/test/test_datetime.py
+++ /dev/null
@@ -1,3372 +0,0 @@
-"""Test date/time type.
-
-See http://www.zope.org/Members/fdrake/DateTimeWiki/TestCases
-"""
-from __future__ import division
-import sys
-import pickle
-import cPickle
-import unittest
-
-from test import test_support
-
-from datetime import MINYEAR, MAXYEAR
-from datetime import timedelta
-from datetime import tzinfo
-from datetime import time
-from datetime import date, datetime
-
-pickle_choices = [(pickler, unpickler, proto)
-                  for pickler in pickle, cPickle
-                  for unpickler in pickle, cPickle
-                  for proto in range(3)]
-assert len(pickle_choices) == 2*2*3
-
-# An arbitrary collection of objects of non-datetime types, for testing
-# mixed-type comparisons.
-OTHERSTUFF = (10, 10L, 34.5, "abc", {}, [], ())
-
-
-#############################################################################
-# module tests
-
-class TestModule(unittest.TestCase):
-
-    def test_constants(self):
-        import datetime
-        self.assertEqual(datetime.MINYEAR, 1)
-        self.assertEqual(datetime.MAXYEAR, 9999)
-
-#############################################################################
-# tzinfo tests
-
-class FixedOffset(tzinfo):
-    def __init__(self, offset, name, dstoffset=42):
-        if isinstance(offset, int):
-            offset = timedelta(minutes=offset)
-        if isinstance(dstoffset, int):
-            dstoffset = timedelta(minutes=dstoffset)
-        self.__offset = offset
-        self.__name = name
-        self.__dstoffset = dstoffset
-    def __repr__(self):
-        return self.__name.lower()
-    def utcoffset(self, dt):
-        return self.__offset
-    def tzname(self, dt):
-        return self.__name
-    def dst(self, dt):
-        return self.__dstoffset
-
-class PicklableFixedOffset(FixedOffset):
-    def __init__(self, offset=None, name=None, dstoffset=None):
-        FixedOffset.__init__(self, offset, name, dstoffset)
-
-class TestTZInfo(unittest.TestCase):
-
-    def test_non_abstractness(self):
-        # In order to allow subclasses to get pickled, the C implementation
-        # wasn't able to get away with having __init__ raise
-        # NotImplementedError.
-        useless = tzinfo()
-        dt = datetime.max
-        self.assertRaises(NotImplementedError, useless.tzname, dt)
-        self.assertRaises(NotImplementedError, useless.utcoffset, dt)
-        self.assertRaises(NotImplementedError, useless.dst, dt)
-
-    def test_subclass_must_override(self):
-        class NotEnough(tzinfo):
-            def __init__(self, offset, name):
-                self.__offset = offset
-                self.__name = name
-        self.assertTrue(issubclass(NotEnough, tzinfo))
-        ne = NotEnough(3, "NotByALongShot")
-        self.assertIsInstance(ne, tzinfo)
-
-        dt = datetime.now()
-        self.assertRaises(NotImplementedError, ne.tzname, dt)
-        self.assertRaises(NotImplementedError, ne.utcoffset, dt)
-        self.assertRaises(NotImplementedError, ne.dst, dt)
-
-    def test_normal(self):
-        fo = FixedOffset(3, "Three")
-        self.assertIsInstance(fo, tzinfo)
-        for dt in datetime.now(), None:
-            self.assertEqual(fo.utcoffset(dt), timedelta(minutes=3))
-            self.assertEqual(fo.tzname(dt), "Three")
-            self.assertEqual(fo.dst(dt), timedelta(minutes=42))
-
-    def test_pickling_base(self):
-        # There's no point to pickling tzinfo objects on their own (they
-        # carry no data), but they need to be picklable anyway else
-        # concrete subclasses can't be pickled.
-        orig = tzinfo.__new__(tzinfo)
-        self.assertTrue(type(orig) is tzinfo)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertTrue(type(derived) is tzinfo)
-
-    def test_pickling_subclass(self):
-        # Make sure we can pickle/unpickle an instance of a subclass.
-        offset = timedelta(minutes=-300)
-        orig = PicklableFixedOffset(offset, 'cookie')
-        self.assertIsInstance(orig, tzinfo)
-        self.assertTrue(type(orig) is PicklableFixedOffset)
-        self.assertEqual(orig.utcoffset(None), offset)
-        self.assertEqual(orig.tzname(None), 'cookie')
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertIsInstance(derived, tzinfo)
-            self.assertTrue(type(derived) is PicklableFixedOffset)
-            self.assertEqual(derived.utcoffset(None), offset)
-            self.assertEqual(derived.tzname(None), 'cookie')
-
-#############################################################################
-# Base clase for testing a particular aspect of timedelta, time, date and
-# datetime comparisons.
-
-class HarmlessMixedComparison:
-    # Test that __eq__ and __ne__ don't complain for mixed-type comparisons.
-
-    # Subclasses must define 'theclass', and theclass(1, 1, 1) must be a
-    # legit constructor.
-
-    def test_harmless_mixed_comparison(self):
-        me = self.theclass(1, 1, 1)
-
-        self.assertFalse(me == ())
-        self.assertTrue(me != ())
-        self.assertFalse(() == me)
-        self.assertTrue(() != me)
-
-        self.assertIn(me, [1, 20L, [], me])
-        self.assertIn([], [me, 1, 20L, []])
-
-    def test_harmful_mixed_comparison(self):
-        me = self.theclass(1, 1, 1)
-
-        self.assertRaises(TypeError, lambda: me < ())
-        self.assertRaises(TypeError, lambda: me <= ())
-        self.assertRaises(TypeError, lambda: me > ())
-        self.assertRaises(TypeError, lambda: me >= ())
-
-        self.assertRaises(TypeError, lambda: () < me)
-        self.assertRaises(TypeError, lambda: () <= me)
-        self.assertRaises(TypeError, lambda: () > me)
-        self.assertRaises(TypeError, lambda: () >= me)
-
-        self.assertRaises(TypeError, cmp, (), me)
-        self.assertRaises(TypeError, cmp, me, ())
-
-#############################################################################
-# timedelta tests
-
-class TestTimeDelta(HarmlessMixedComparison, unittest.TestCase):
-
-    theclass = timedelta
-
-    def test_constructor(self):
-        eq = self.assertEqual
-        td = timedelta
-
-        # Check keyword args to constructor
-        eq(td(), td(weeks=0, days=0, hours=0, minutes=0, seconds=0,
-                    milliseconds=0, microseconds=0))
-        eq(td(1), td(days=1))
-        eq(td(0, 1), td(seconds=1))
-        eq(td(0, 0, 1), td(microseconds=1))
-        eq(td(weeks=1), td(days=7))
-        eq(td(days=1), td(hours=24))
-        eq(td(hours=1), td(minutes=60))
-        eq(td(minutes=1), td(seconds=60))
-        eq(td(seconds=1), td(milliseconds=1000))
-        eq(td(milliseconds=1), td(microseconds=1000))
-
-        # Check float args to constructor
-        eq(td(weeks=1.0/7), td(days=1))
-        eq(td(days=1.0/24), td(hours=1))
-        eq(td(hours=1.0/60), td(minutes=1))
-        eq(td(minutes=1.0/60), td(seconds=1))
-        eq(td(seconds=0.001), td(milliseconds=1))
-        eq(td(milliseconds=0.001), td(microseconds=1))
-
-    @unittest.skipIf(test_support.is_jython, "FIXME: overflow error on Jython")
-    def test_computations(self):
-        eq = self.assertEqual
-        td = timedelta
-
-        a = td(7) # One week
-        b = td(0, 60) # One minute
-        c = td(0, 0, 1000) # One millisecond
-        eq(a+b+c, td(7, 60, 1000))
-        eq(a-b, td(6, 24*3600 - 60))
-        eq(-a, td(-7))
-        eq(+a, td(7))
-        eq(-b, td(-1, 24*3600 - 60))
-        eq(-c, td(-1, 24*3600 - 1, 999000))
-        eq(abs(a), a)
-        eq(abs(-a), a)
-        eq(td(6, 24*3600), a)
-        eq(td(0, 0, 60*1000000), b)
-        eq(a*10, td(70))
-        eq(a*10, 10*a)
-        eq(a*10L, 10*a)
-        eq(b*10, td(0, 600))
-        eq(10*b, td(0, 600))
-        eq(b*10L, td(0, 600))
-        eq(c*10, td(0, 0, 10000))
-        eq(10*c, td(0, 0, 10000))
-        eq(c*10L, td(0, 0, 10000))
-        eq(a*-1, -a)
-        eq(b*-2, -b-b)
-        eq(c*-2, -c+-c)
-        eq(b*(60*24), (b*60)*24)
-        eq(b*(60*24), (60*b)*24)
-        eq(c*1000, td(0, 1))
-        eq(1000*c, td(0, 1))
-        eq(a//7, td(1))
-        eq(b//10, td(0, 6))
-        eq(c//1000, td(0, 0, 1))
-        eq(a//10, td(0, 7*24*360))
-        eq(a//3600000, td(0, 0, 7*24*1000))
-
-        # Issue #11576
-        eq(td(999999999, 86399, 999999) - td(999999999, 86399, 999998),
-           td(0, 0, 1))
-        eq(td(999999999, 1, 1) - td(999999999, 1, 0),
-           td(0, 0, 1))
-
-
-    def test_disallowed_computations(self):
-        a = timedelta(42)
-
-        # Add/sub ints, longs, floats should be illegal
-        for i in 1, 1L, 1.0:
-            self.assertRaises(TypeError, lambda: a+i)
-            self.assertRaises(TypeError, lambda: a-i)
-            self.assertRaises(TypeError, lambda: i+a)
-            self.assertRaises(TypeError, lambda: i-a)
-
-        # Mul/div by float isn't supported.
-        x = 2.3
-        self.assertRaises(TypeError, lambda: a*x)
-        self.assertRaises(TypeError, lambda: x*a)
-        self.assertRaises(TypeError, lambda: a/x)
-        self.assertRaises(TypeError, lambda: x/a)
-        self.assertRaises(TypeError, lambda: a // x)
-        self.assertRaises(TypeError, lambda: x // a)
-
-        # Division of int by timedelta doesn't make sense.
-        # Division by zero doesn't make sense.
-        for zero in 0, 0L:
-            self.assertRaises(TypeError, lambda: zero // a)
-            self.assertRaises(ZeroDivisionError, lambda: a // zero)
-
-    def test_basic_attributes(self):
-        days, seconds, us = 1, 7, 31
-        td = timedelta(days, seconds, us)
-        self.assertEqual(td.days, days)
-        self.assertEqual(td.seconds, seconds)
-        self.assertEqual(td.microseconds, us)
-
-    @unittest.skipIf(test_support.is_jython, "FIXME: total_seconds() not supported")
-    def test_total_seconds(self):
-        td = timedelta(days=365)
-        self.assertEqual(td.total_seconds(), 31536000.0)
-        for total_seconds in [123456.789012, -123456.789012, 0.123456, 0, 1e6]:
-            td = timedelta(seconds=total_seconds)
-            self.assertEqual(td.total_seconds(), total_seconds)
-        # Issue8644: Test that td.total_seconds() has the same
-        # accuracy as td / timedelta(seconds=1).
-        for ms in [-1, -2, -123]:
-            td = timedelta(microseconds=ms)
-            self.assertEqual(td.total_seconds(),
-                             ((24*3600*td.days + td.seconds)*10**6
-                              + td.microseconds)/10**6)
-
-    def test_carries(self):
-        t1 = timedelta(days=100,
-                       weeks=-7,
-                       hours=-24*(100-49),
-                       minutes=-3,
-                       seconds=12,
-                       microseconds=(3*60 - 12) * 1e6 + 1)
-        t2 = timedelta(microseconds=1)
-        self.assertEqual(t1, t2)
-
-    def test_hash_equality(self):
-        t1 = timedelta(days=100,
-                       weeks=-7,
-                       hours=-24*(100-49),
-                       minutes=-3,
-                       seconds=12,
-                       microseconds=(3*60 - 12) * 1000000)
-        t2 = timedelta()
-        self.assertEqual(hash(t1), hash(t2))
-
-        t1 += timedelta(weeks=7)
-        t2 += timedelta(days=7*7)
-        self.assertEqual(t1, t2)
-        self.assertEqual(hash(t1), hash(t2))
-
-        d = {t1: 1}
-        d[t2] = 2
-        self.assertEqual(len(d), 1)
-        self.assertEqual(d[t1], 2)
-
-    def test_pickling(self):
-        args = 12, 34, 56
-        orig = timedelta(*args)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-
-    def test_compare(self):
-        t1 = timedelta(2, 3, 4)
-        t2 = timedelta(2, 3, 4)
-        self.assertTrue(t1 == t2)
-        self.assertTrue(t1 <= t2)
-        self.assertTrue(t1 >= t2)
-        self.assertTrue(not t1 != t2)
-        self.assertTrue(not t1 < t2)
-        self.assertTrue(not t1 > t2)
-        self.assertEqual(cmp(t1, t2), 0)
-        self.assertEqual(cmp(t2, t1), 0)
-
-        for args in (3, 3, 3), (2, 4, 4), (2, 3, 5):
-            t2 = timedelta(*args)   # this is larger than t1
-            self.assertTrue(t1 < t2)
-            self.assertTrue(t2 > t1)
-            self.assertTrue(t1 <= t2)
-            self.assertTrue(t2 >= t1)
-            self.assertTrue(t1 != t2)
-            self.assertTrue(t2 != t1)
-            self.assertTrue(not t1 == t2)
-            self.assertTrue(not t2 == t1)
-            self.assertTrue(not t1 > t2)
-            self.assertTrue(not t2 < t1)
-            self.assertTrue(not t1 >= t2)
-            self.assertTrue(not t2 <= t1)
-            self.assertEqual(cmp(t1, t2), -1)
-            self.assertEqual(cmp(t2, t1), 1)
-
-        for badarg in OTHERSTUFF:
-            self.assertEqual(t1 == badarg, False)
-            self.assertEqual(t1 != badarg, True)
-            self.assertEqual(badarg == t1, False)
-            self.assertEqual(badarg != t1, True)
-
-            self.assertRaises(TypeError, lambda: t1 <= badarg)
-            self.assertRaises(TypeError, lambda: t1 < badarg)
-            self.assertRaises(TypeError, lambda: t1 > badarg)
-            self.assertRaises(TypeError, lambda: t1 >= badarg)
-            self.assertRaises(TypeError, lambda: badarg <= t1)
-            self.assertRaises(TypeError, lambda: badarg < t1)
-            self.assertRaises(TypeError, lambda: badarg > t1)
-            self.assertRaises(TypeError, lambda: badarg >= t1)
-
-    def test_str(self):
-        td = timedelta
-        eq = self.assertEqual
-
-        eq(str(td(1)), "1 day, 0:00:00")
-        eq(str(td(-1)), "-1 day, 0:00:00")
-        eq(str(td(2)), "2 days, 0:00:00")
-        eq(str(td(-2)), "-2 days, 0:00:00")
-
-        eq(str(td(hours=12, minutes=58, seconds=59)), "12:58:59")
-        eq(str(td(hours=2, minutes=3, seconds=4)), "2:03:04")
-        eq(str(td(weeks=-30, hours=23, minutes=12, seconds=34)),
-           "-210 days, 23:12:34")
-
-        eq(str(td(milliseconds=1)), "0:00:00.001000")
-        eq(str(td(microseconds=3)), "0:00:00.000003")
-
-        eq(str(td(days=999999999, hours=23, minutes=59, seconds=59,
-                   microseconds=999999)),
-           "999999999 days, 23:59:59.999999")
-
-    def test_roundtrip(self):
-        for td in (timedelta(days=999999999, hours=23, minutes=59,
-                             seconds=59, microseconds=999999),
-                   timedelta(days=-999999999),
-                   timedelta(days=1, seconds=2, microseconds=3)):
-
-            # Verify td -> string -> td identity.
-            s = repr(td)
-            self.assertTrue(s.startswith('datetime.'))
-            s = s[9:]
-            td2 = eval(s)
-            self.assertEqual(td, td2)
-
-            # Verify identity via reconstructing from pieces.
-            td2 = timedelta(td.days, td.seconds, td.microseconds)
-            self.assertEqual(td, td2)
-
-    def test_resolution_info(self):
-        self.assertIsInstance(timedelta.min, timedelta)
-        self.assertIsInstance(timedelta.max, timedelta)
-        self.assertIsInstance(timedelta.resolution, timedelta)
-        self.assertTrue(timedelta.max > timedelta.min)
-        self.assertEqual(timedelta.min, timedelta(-999999999))
-        self.assertEqual(timedelta.max, timedelta(999999999, 24*3600-1, 1e6-1))
-        self.assertEqual(timedelta.resolution, timedelta(0, 0, 1))
-
-    def test_overflow(self):
-        tiny = timedelta.resolution
-
-        td = timedelta.min + tiny
-        td -= tiny  # no problem
-        self.assertRaises(OverflowError, td.__sub__, tiny)
-        self.assertRaises(OverflowError, td.__add__, -tiny)
-
-        td = timedelta.max - tiny
-        td += tiny  # no problem
-        self.assertRaises(OverflowError, td.__add__, tiny)
-        self.assertRaises(OverflowError, td.__sub__, -tiny)
-
-        self.assertRaises(OverflowError, lambda: -timedelta.max)
-
-    def test_microsecond_rounding(self):
-        td = timedelta
-        eq = self.assertEqual
-
-        # Single-field rounding.
-        eq(td(milliseconds=0.4/1000), td(0))    # rounds to 0
-        eq(td(milliseconds=-0.4/1000), td(0))    # rounds to 0
-        eq(td(milliseconds=0.6/1000), td(microseconds=1))
-        eq(td(milliseconds=-0.6/1000), td(microseconds=-1))
-
-        # Rounding due to contributions from more than one field.
-        us_per_hour = 3600e6
-        us_per_day = us_per_hour * 24
-        eq(td(days=.4/us_per_day), td(0))
-        eq(td(hours=.2/us_per_hour), td(0))
-        eq(td(days=.4/us_per_day, hours=.2/us_per_hour), td(microseconds=1))
-
-        eq(td(days=-.4/us_per_day), td(0))
-        eq(td(hours=-.2/us_per_hour), td(0))
-        eq(td(days=-.4/us_per_day, hours=-.2/us_per_hour), td(microseconds=-1))
-
-    def test_massive_normalization(self):
-        td = timedelta(microseconds=-1)
-        self.assertEqual((td.days, td.seconds, td.microseconds),
-                         (-1, 24*3600-1, 999999))
-
-    def test_bool(self):
-        self.assertTrue(timedelta(1))
-        self.assertTrue(timedelta(0, 1))
-        self.assertTrue(timedelta(0, 0, 1))
-        self.assertTrue(timedelta(microseconds=1))
-        self.assertTrue(not timedelta(0))
-
-    def test_subclass_timedelta(self):
-
-        class T(timedelta):
-            @staticmethod
-            def from_td(td):
-                return T(td.days, td.seconds, td.microseconds)
-
-            def as_hours(self):
-                sum = (self.days * 24 +
-                       self.seconds / 3600.0 +
-                       self.microseconds / 3600e6)
-                return round(sum)
-
-        t1 = T(days=1)
-        self.assertTrue(type(t1) is T)
-        self.assertEqual(t1.as_hours(), 24)
-
-        t2 = T(days=-1, seconds=-3600)
-        self.assertTrue(type(t2) is T)
-        self.assertEqual(t2.as_hours(), -25)
-
-        t3 = t1 + t2
-        self.assertTrue(type(t3) is timedelta)
-        t4 = T.from_td(t3)
-        self.assertTrue(type(t4) is T)
-        self.assertEqual(t3.days, t4.days)
-        self.assertEqual(t3.seconds, t4.seconds)
-        self.assertEqual(t3.microseconds, t4.microseconds)
-        self.assertEqual(str(t3), str(t4))
-        self.assertEqual(t4.as_hours(), -1)
-
-#############################################################################
-# date tests
-
-class TestDateOnly(unittest.TestCase):
-    # Tests here won't pass if also run on datetime objects, so don't
-    # subclass this to test datetimes too.
-
-    def test_delta_non_days_ignored(self):
-        dt = date(2000, 1, 2)
-        delta = timedelta(days=1, hours=2, minutes=3, seconds=4,
-                          microseconds=5)
-        days = timedelta(delta.days)
-        self.assertEqual(days, timedelta(1))
-
-        dt2 = dt + delta
-        self.assertEqual(dt2, dt + days)
-
-        dt2 = delta + dt
-        self.assertEqual(dt2, dt + days)
-
-        dt2 = dt - delta
-        self.assertEqual(dt2, dt - days)
-
-        delta = -delta
-        days = timedelta(delta.days)
-        self.assertEqual(days, timedelta(-2))
-
-        dt2 = dt + delta
-        self.assertEqual(dt2, dt + days)
-
-        dt2 = delta + dt
-        self.assertEqual(dt2, dt + days)
-
-        dt2 = dt - delta
-        self.assertEqual(dt2, dt - days)
-
-class SubclassDate(date):
-    sub_var = 1
-
-class TestDate(HarmlessMixedComparison, unittest.TestCase):
-    # Tests here should pass for both dates and datetimes, except for a
-    # few tests that TestDateTime overrides.
-
-    theclass = date
-
-    def test_basic_attributes(self):
-        dt = self.theclass(2002, 3, 1)
-        self.assertEqual(dt.year, 2002)
-        self.assertEqual(dt.month, 3)
-        self.assertEqual(dt.day, 1)
-
-    def test_roundtrip(self):
-        for dt in (self.theclass(1, 2, 3),
-                   self.theclass.today()):
-            # Verify dt -> string -> date identity.
-            s = repr(dt)
-            self.assertTrue(s.startswith('datetime.'))
-            s = s[9:]
-            dt2 = eval(s)
-            self.assertEqual(dt, dt2)
-
-            # Verify identity via reconstructing from pieces.
-            dt2 = self.theclass(dt.year, dt.month, dt.day)
-            self.assertEqual(dt, dt2)
-
-    def test_ordinal_conversions(self):
-        # Check some fixed values.
-        for y, m, d, n in [(1, 1, 1, 1),      # calendar origin
-                           (1, 12, 31, 365),
-                           (2, 1, 1, 366),
-                           # first example from "Calendrical Calculations"
-                           (1945, 11, 12, 710347)]:
-            d = self.theclass(y, m, d)
-            self.assertEqual(n, d.toordinal())
-            fromord = self.theclass.fromordinal(n)
-            self.assertEqual(d, fromord)
-            if hasattr(fromord, "hour"):
-            # if we're checking something fancier than a date, verify
-            # the extra fields have been zeroed out
-                self.assertEqual(fromord.hour, 0)
-                self.assertEqual(fromord.minute, 0)
-                self.assertEqual(fromord.second, 0)
-                self.assertEqual(fromord.microsecond, 0)
-
-        # Check first and last days of year spottily across the whole
-        # range of years supported.
-        for year in xrange(MINYEAR, MAXYEAR+1, 7):
-            # Verify (year, 1, 1) -> ordinal -> y, m, d is identity.
-            d = self.theclass(year, 1, 1)
-            n = d.toordinal()
-            d2 = self.theclass.fromordinal(n)
-            self.assertEqual(d, d2)
-            # Verify that moving back a day gets to the end of year-1.
-            if year > 1:
-                d = self.theclass.fromordinal(n-1)
-                d2 = self.theclass(year-1, 12, 31)
-                self.assertEqual(d, d2)
-                self.assertEqual(d2.toordinal(), n-1)
-
-        # Test every day in a leap-year and a non-leap year.
-        dim = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
-        for year, isleap in (2000, True), (2002, False):
-            n = self.theclass(year, 1, 1).toordinal()
-            for month, maxday in zip(range(1, 13), dim):
-                if month == 2 and isleap:
-                    maxday += 1
-                for day in range(1, maxday+1):
-                    d = self.theclass(year, month, day)
-                    self.assertEqual(d.toordinal(), n)
-                    self.assertEqual(d, self.theclass.fromordinal(n))
-                    n += 1
-
-    def test_extreme_ordinals(self):
-        a = self.theclass.min
-        a = self.theclass(a.year, a.month, a.day)  # get rid of time parts
-        aord = a.toordinal()
-        b = a.fromordinal(aord)
-        self.assertEqual(a, b)
-
-        self.assertRaises(ValueError, lambda: a.fromordinal(aord - 1))
-
-        b = a + timedelta(days=1)
-        self.assertEqual(b.toordinal(), aord + 1)
-        self.assertEqual(b, self.theclass.fromordinal(aord + 1))
-
-        a = self.theclass.max
-        a = self.theclass(a.year, a.month, a.day)  # get rid of time parts
-        aord = a.toordinal()
-        b = a.fromordinal(aord)
-        self.assertEqual(a, b)
-
-        self.assertRaises(ValueError, lambda: a.fromordinal(aord + 1))
-
-        b = a - timedelta(days=1)
-        self.assertEqual(b.toordinal(), aord - 1)
-        self.assertEqual(b, self.theclass.fromordinal(aord - 1))
-
-    def test_bad_constructor_arguments(self):
-        # bad years
-        self.theclass(MINYEAR, 1, 1)  # no exception
-        self.theclass(MAXYEAR, 1, 1)  # no exception
-        self.assertRaises(ValueError, self.theclass, MINYEAR-1, 1, 1)
-        self.assertRaises(ValueError, self.theclass, MAXYEAR+1, 1, 1)
-        # bad months
-        self.theclass(2000, 1, 1)    # no exception
-        self.theclass(2000, 12, 1)   # no exception
-        self.assertRaises(ValueError, self.theclass, 2000, 0, 1)
-        self.assertRaises(ValueError, self.theclass, 2000, 13, 1)
-        # bad days
-        self.theclass(2000, 2, 29)   # no exception
-        self.theclass(2004, 2, 29)   # no exception
-        self.theclass(2400, 2, 29)   # no exception
-        self.assertRaises(ValueError, self.theclass, 2000, 2, 30)
-        self.assertRaises(ValueError, self.theclass, 2001, 2, 29)
-        self.assertRaises(ValueError, self.theclass, 2100, 2, 29)
-        self.assertRaises(ValueError, self.theclass, 1900, 2, 29)
-        self.assertRaises(ValueError, self.theclass, 2000, 1, 0)
-        self.assertRaises(ValueError, self.theclass, 2000, 1, 32)
-
-    def test_hash_equality(self):
-        d = self.theclass(2000, 12, 31)
-        # same thing
-        e = self.theclass(2000, 12, 31)
-        self.assertEqual(d, e)
-        self.assertEqual(hash(d), hash(e))
-
-        dic = {d: 1}
-        dic[e] = 2
-        self.assertEqual(len(dic), 1)
-        self.assertEqual(dic[d], 2)
-        self.assertEqual(dic[e], 2)
-
-        d = self.theclass(2001,  1,  1)
-        # same thing
-        e = self.theclass(2001,  1,  1)
-        self.assertEqual(d, e)
-        self.assertEqual(hash(d), hash(e))
-
-        dic = {d: 1}
-        dic[e] = 2
-        self.assertEqual(len(dic), 1)
-        self.assertEqual(dic[d], 2)
-        self.assertEqual(dic[e], 2)
-
-    def test_computations(self):
-        a = self.theclass(2002, 1, 31)
-        b = self.theclass(1956, 1, 31)
-
-        diff = a-b
-        self.assertEqual(diff.days, 46*365 + len(range(1956, 2002, 4)))
-        self.assertEqual(diff.seconds, 0)
-        self.assertEqual(diff.microseconds, 0)
-
-        day = timedelta(1)
-        week = timedelta(7)
-        a = self.theclass(2002, 3, 2)
-        self.assertEqual(a + day, self.theclass(2002, 3, 3))
-        self.assertEqual(day + a, self.theclass(2002, 3, 3))
-        self.assertEqual(a - day, self.theclass(2002, 3, 1))
-        self.assertEqual(-day + a, self.theclass(2002, 3, 1))
-        self.assertEqual(a + week, self.theclass(2002, 3, 9))
-        self.assertEqual(a - week, self.theclass(2002, 2, 23))
-        self.assertEqual(a + 52*week, self.theclass(2003, 3, 1))
-        self.assertEqual(a - 52*week, self.theclass(2001, 3, 3))
-        self.assertEqual((a + week) - a, week)
-        self.assertEqual((a + day) - a, day)
-        self.assertEqual((a - week) - a, -week)
-        self.assertEqual((a - day) - a, -day)
-        self.assertEqual(a - (a + week), -week)
-        self.assertEqual(a - (a + day), -day)
-        self.assertEqual(a - (a - week), week)
-        self.assertEqual(a - (a - day), day)
-
-        # Add/sub ints, longs, floats should be illegal
-        for i in 1, 1L, 1.0:
-            self.assertRaises(TypeError, lambda: a+i)
-            self.assertRaises(TypeError, lambda: a-i)
-            self.assertRaises(TypeError, lambda: i+a)
-            self.assertRaises(TypeError, lambda: i-a)
-
-        # delta - date is senseless.
-        self.assertRaises(TypeError, lambda: day - a)
-        # mixing date and (delta or date) via * or // is senseless
-        self.assertRaises(TypeError, lambda: day * a)
-        self.assertRaises(TypeError, lambda: a * day)
-        self.assertRaises(TypeError, lambda: day // a)
-        self.assertRaises(TypeError, lambda: a // day)
-        self.assertRaises(TypeError, lambda: a * a)
-        self.assertRaises(TypeError, lambda: a // a)
-        # date + date is senseless
-        self.assertRaises(TypeError, lambda: a + a)
-
-    def test_overflow(self):
-        tiny = self.theclass.resolution
-
-        for delta in [tiny, timedelta(1), timedelta(2)]:
-            dt = self.theclass.min + delta
-            dt -= delta  # no problem
-            self.assertRaises(OverflowError, dt.__sub__, delta)
-            self.assertRaises(OverflowError, dt.__add__, -delta)
-
-            dt = self.theclass.max - delta
-            dt += delta  # no problem
-            self.assertRaises(OverflowError, dt.__add__, delta)
-            self.assertRaises(OverflowError, dt.__sub__, -delta)
-
-    def test_fromtimestamp(self):
-        import time
-
-        # Try an arbitrary fixed value.
-        year, month, day = 1999, 9, 19
-        ts = time.mktime((year, month, day, 0, 0, 0, 0, 0, -1))
-        d = self.theclass.fromtimestamp(ts)
-        self.assertEqual(d.year, year)
-        self.assertEqual(d.month, month)
-        self.assertEqual(d.day, day)
-
-    def test_insane_fromtimestamp(self):
-        # It's possible that some platform maps time_t to double,
-        # and that this test will fail there.  This test should
-        # exempt such platforms (provided they return reasonable
-        # results!).
-        for insane in -1e200, 1e200:
-            self.assertRaises(ValueError, self.theclass.fromtimestamp,
-                              insane)
-
-    def test_today(self):
-        import time
-
-        # We claim that today() is like fromtimestamp(time.time()), so
-        # prove it.
-        for dummy in range(3):
-            today = self.theclass.today()
-            ts = time.time()
-            todayagain = self.theclass.fromtimestamp(ts)
-            if today == todayagain:
-                break
-            # There are several legit reasons that could fail:
-            # 1. It recently became midnight, between the today() and the
-            #    time() calls.
-            # 2. The platform time() has such fine resolution that we'll
-            #    never get the same value twice.
-            # 3. The platform time() has poor resolution, and we just
-            #    happened to call today() right before a resolution quantum
-            #    boundary.
-            # 4. The system clock got fiddled between calls.
-            # In any case, wait a little while and try again.
-            time.sleep(0.1)
-
-        # It worked or it didn't.  If it didn't, assume it's reason #2, and
-        # let the test pass if they're within half a second of each other.
-        self.assertTrue(today == todayagain or
-                        abs(todayagain - today) < timedelta(seconds=0.5))
-
-    def test_weekday(self):
-        for i in range(7):
-            # March 4, 2002 is a Monday
-            self.assertEqual(self.theclass(2002, 3, 4+i).weekday(), i)
-            self.assertEqual(self.theclass(2002, 3, 4+i).isoweekday(), i+1)
-            # January 2, 1956 is a Monday
-            self.assertEqual(self.theclass(1956, 1, 2+i).weekday(), i)
-            self.assertEqual(self.theclass(1956, 1, 2+i).isoweekday(), i+1)
-
-    def test_isocalendar(self):
-        # Check examples from
-        # http://www.phys.uu.nl/~vgent/calendar/isocalendar.htm
-        for i in range(7):
-            d = self.theclass(2003, 12, 22+i)
-            self.assertEqual(d.isocalendar(), (2003, 52, i+1))
-            d = self.theclass(2003, 12, 29) + timedelta(i)
-            self.assertEqual(d.isocalendar(), (2004, 1, i+1))
-            d = self.theclass(2004, 1, 5+i)
-            self.assertEqual(d.isocalendar(), (2004, 2, i+1))
-            d = self.theclass(2009, 12, 21+i)
-            self.assertEqual(d.isocalendar(), (2009, 52, i+1))
-            d = self.theclass(2009, 12, 28) + timedelta(i)
-            self.assertEqual(d.isocalendar(), (2009, 53, i+1))
-            d = self.theclass(2010, 1, 4+i)
-            self.assertEqual(d.isocalendar(), (2010, 1, i+1))
-
-    def test_iso_long_years(self):
-        # Calculate long ISO years and compare to table from
-        # http://www.phys.uu.nl/~vgent/calendar/isocalendar.htm
-        ISO_LONG_YEARS_TABLE = """
-              4   32   60   88
-              9   37   65   93
-             15   43   71   99
-             20   48   76
-             26   54   82
-
-            105  133  161  189
-            111  139  167  195
-            116  144  172
-            122  150  178
-            128  156  184
-
-            201  229  257  285
-            207  235  263  291
-            212  240  268  296
-            218  246  274
-            224  252  280
-
-            303  331  359  387
-            308  336  364  392
-            314  342  370  398
-            320  348  376
-            325  353  381
-        """
-        iso_long_years = map(int, ISO_LONG_YEARS_TABLE.split())
-        iso_long_years.sort()
-        L = []
-        for i in range(400):
-            d = self.theclass(2000+i, 12, 31)
-            d1 = self.theclass(1600+i, 12, 31)
-            self.assertEqual(d.isocalendar()[1:], d1.isocalendar()[1:])
-            if d.isocalendar()[1] == 53:
-                L.append(i)
-        self.assertEqual(L, iso_long_years)
-
-    def test_isoformat(self):
-        t = self.theclass(2, 3, 2)
-        self.assertEqual(t.isoformat(), "0002-03-02")
-
-    def test_ctime(self):
-        t = self.theclass(2002, 3, 2)
-        self.assertEqual(t.ctime(), "Sat Mar  2 00:00:00 2002")
-
-    def test_strftime(self):
-        t = self.theclass(2005, 3, 2)
-        self.assertEqual(t.strftime("m:%m d:%d y:%y"), "m:03 d:02 y:05")
-        self.assertEqual(t.strftime(""), "") # SF bug #761337
-        self.assertEqual(t.strftime('x'*1000), 'x'*1000) # SF bug #1556784
-
-        self.assertRaises(TypeError, t.strftime) # needs an arg
-        self.assertRaises(TypeError, t.strftime, "one", "two") # too many args
-        self.assertRaises(TypeError, t.strftime, 42) # arg wrong type
-
-        # test that unicode input is allowed (issue 2782)
-        self.assertEqual(t.strftime(u"%m"), "03")
-
-        # A naive object replaces %z and %Z w/ empty strings.
-        self.assertEqual(t.strftime("'%z' '%Z'"), "'' ''")
-
-        #make sure that invalid format specifiers are handled correctly
-        #self.assertRaises(ValueError, t.strftime, "%e")
-        #self.assertRaises(ValueError, t.strftime, "%")
-        #self.assertRaises(ValueError, t.strftime, "%#")
-
-        #oh well, some systems just ignore those invalid ones.
-        #at least, excercise them to make sure that no crashes
-        #are generated
-        for f in ["%e", "%", "%#"]:
-            try:
-                t.strftime(f)
-            except ValueError:
-                pass
-
-        #check that this standard extension works
-        t.strftime("%f")
-
-    @unittest.skipIf(test_support.is_jython, "FIXME: some formats not accepted by Jython")
-    def test_format(self):
-        dt = self.theclass(2007, 9, 10)
-        self.assertEqual(dt.__format__(''), str(dt))
-
-        # check that a derived class's __str__() gets called
-        class A(self.theclass):
-            def __str__(self):
-                return 'A'
-        a = A(2007, 9, 10)
-        self.assertEqual(a.__format__(''), 'A')
-
-        # check that a derived class's strftime gets called
-        class B(self.theclass):
-            def strftime(self, format_spec):
-                return 'B'
-        b = B(2007, 9, 10)
-        self.assertEqual(b.__format__(''), str(dt))
-
-        for fmt in ["m:%m d:%d y:%y",
-                    "m:%m d:%d y:%y H:%H M:%M S:%S",
-                    "%z %Z",
-                    ]:
-            self.assertEqual(dt.__format__(fmt), dt.strftime(fmt))
-            self.assertEqual(a.__format__(fmt), dt.strftime(fmt))
-            self.assertEqual(b.__format__(fmt), 'B')
-
-    def test_resolution_info(self):
-        self.assertIsInstance(self.theclass.min, self.theclass)
-        self.assertIsInstance(self.theclass.max, self.theclass)
-        self.assertIsInstance(self.theclass.resolution, timedelta)
-        self.assertTrue(self.theclass.max > self.theclass.min)
-
-    def test_extreme_timedelta(self):
-        big = self.theclass.max - self.theclass.min
-        # 3652058 days, 23 hours, 59 minutes, 59 seconds, 999999 microseconds
-        n = (big.days*24*3600 + big.seconds)*1000000 + big.microseconds
-        # n == 315537897599999999 ~= 2**58.13
-        justasbig = timedelta(0, 0, n)
-        self.assertEqual(big, justasbig)
-        self.assertEqual(self.theclass.min + big, self.theclass.max)
-        self.assertEqual(self.theclass.max - big, self.theclass.min)
-
-    def test_timetuple(self):
-        for i in range(7):
-            # January 2, 1956 is a Monday (0)
-            d = self.theclass(1956, 1, 2+i)
-            t = d.timetuple()
-            self.assertEqual(t, (1956, 1, 2+i, 0, 0, 0, i, 2+i, -1))
-            # February 1, 1956 is a Wednesday (2)
-            d = self.theclass(1956, 2, 1+i)
-            t = d.timetuple()
-            self.assertEqual(t, (1956, 2, 1+i, 0, 0, 0, (2+i)%7, 32+i, -1))
-            # March 1, 1956 is a Thursday (3), and is the 31+29+1 = 61st day
-            # of the year.
-            d = self.theclass(1956, 3, 1+i)
-            t = d.timetuple()
-            self.assertEqual(t, (1956, 3, 1+i, 0, 0, 0, (3+i)%7, 61+i, -1))
-            self.assertEqual(t.tm_year, 1956)
-            self.assertEqual(t.tm_mon, 3)
-            self.assertEqual(t.tm_mday, 1+i)
-            self.assertEqual(t.tm_hour, 0)
-            self.assertEqual(t.tm_min, 0)
-            self.assertEqual(t.tm_sec, 0)
-            self.assertEqual(t.tm_wday, (3+i)%7)
-            self.assertEqual(t.tm_yday, 61+i)
-            self.assertEqual(t.tm_isdst, -1)
-
-    def test_pickling(self):
-        args = 6, 7, 23
-        orig = self.theclass(*args)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-
-    def test_compare(self):
-        t1 = self.theclass(2, 3, 4)
-        t2 = self.theclass(2, 3, 4)
-        self.assertTrue(t1 == t2)
-        self.assertTrue(t1 <= t2)
-        self.assertTrue(t1 >= t2)
-        self.assertTrue(not t1 != t2)
-        self.assertTrue(not t1 < t2)
-        self.assertTrue(not t1 > t2)
-        self.assertEqual(cmp(t1, t2), 0)
-        self.assertEqual(cmp(t2, t1), 0)
-
-        for args in (3, 3, 3), (2, 4, 4), (2, 3, 5):
-            t2 = self.theclass(*args)   # this is larger than t1
-            self.assertTrue(t1 < t2)
-            self.assertTrue(t2 > t1)
-            self.assertTrue(t1 <= t2)
-            self.assertTrue(t2 >= t1)
-            self.assertTrue(t1 != t2)
-            self.assertTrue(t2 != t1)
-            self.assertTrue(not t1 == t2)
-            self.assertTrue(not t2 == t1)
-            self.assertTrue(not t1 > t2)
-            self.assertTrue(not t2 < t1)
-            self.assertTrue(not t1 >= t2)
-            self.assertTrue(not t2 <= t1)
-            self.assertEqual(cmp(t1, t2), -1)
-            self.assertEqual(cmp(t2, t1), 1)
-
-        for badarg in OTHERSTUFF:
-            self.assertEqual(t1 == badarg, False)
-            self.assertEqual(t1 != badarg, True)
-            self.assertEqual(badarg == t1, False)
-            self.assertEqual(badarg != t1, True)
-
-            self.assertRaises(TypeError, lambda: t1 < badarg)
-            self.assertRaises(TypeError, lambda: t1 > badarg)
-            self.assertRaises(TypeError, lambda: t1 >= badarg)
-            self.assertRaises(TypeError, lambda: badarg <= t1)
-            self.assertRaises(TypeError, lambda: badarg < t1)
-            self.assertRaises(TypeError, lambda: badarg > t1)
-            self.assertRaises(TypeError, lambda: badarg >= t1)
-
-    def test_mixed_compare(self):
-        our = self.theclass(2000, 4, 5)
-        self.assertRaises(TypeError, cmp, our, 1)
-        self.assertRaises(TypeError, cmp, 1, our)
-
-        class AnotherDateTimeClass(object):
-            def __cmp__(self, other):
-                # Return "equal" so calling this can't be confused with
-                # compare-by-address (which never says "equal" for distinct
-                # objects).
-                return 0
-            __hash__ = None # Silence Py3k warning
-
-        # This still errors, because date and datetime comparison raise
-        # TypeError instead of NotImplemented when they don't know what to
-        # do, in order to stop comparison from falling back to the default
-        # compare-by-address.
-        their = AnotherDateTimeClass()
-        self.assertRaises(TypeError, cmp, our, their)
-        # Oops:  The next stab raises TypeError in the C implementation,
-        # but not in the Python implementation of datetime.  The difference
-        # is due to that the Python implementation defines __cmp__ but
-        # the C implementation defines tp_richcompare.  This is more pain
-        # to fix than it's worth, so commenting out the test.
-        # self.assertEqual(cmp(their, our), 0)
-
-        # But date and datetime comparison return NotImplemented instead if the
-        # other object has a timetuple attr.  This gives the other object a
-        # chance to do the comparison.
-        class Comparable(AnotherDateTimeClass):
-            def timetuple(self):
-                return ()
-
-        their = Comparable()
-        self.assertEqual(cmp(our, their), 0)
-        self.assertEqual(cmp(their, our), 0)
-        self.assertTrue(our == their)
-        self.assertTrue(their == our)
-
-    def test_bool(self):
-        # All dates are considered true.
-        self.assertTrue(self.theclass.min)
-        self.assertTrue(self.theclass.max)
-
-    def test_strftime_out_of_range(self):
-        # For nasty technical reasons, we can't handle years before 1900.
-        cls = self.theclass
-        self.assertEqual(cls(1900, 1, 1).strftime("%Y"), "1900")
-        for y in 1, 49, 51, 99, 100, 1000, 1899:
-            self.assertRaises(ValueError, cls(y, 1, 1).strftime, "%Y")
-
-    def test_replace(self):
-        cls = self.theclass
-        args = [1, 2, 3]
-        base = cls(*args)
-        self.assertEqual(base, base.replace())
-
-        i = 0
-        for name, newval in (("year", 2),
-                             ("month", 3),
-                             ("day", 4)):
-            newargs = args[:]
-            newargs[i] = newval
-            expected = cls(*newargs)
-            got = base.replace(**{name: newval})
-            self.assertEqual(expected, got)
-            i += 1
-
-        # Out of bounds.
-        base = cls(2000, 2, 29)
-        self.assertRaises(ValueError, base.replace, year=2001)
-
-    def test_subclass_date(self):
-
-        class C(self.theclass):
-            theAnswer = 42
-
-            def __new__(cls, *args, **kws):
-                temp = kws.copy()
-                extra = temp.pop('extra')
-                result = self.theclass.__new__(cls, *args, **temp)
-                result.extra = extra
-                return result
-
-            def newmeth(self, start):
-                return start + self.year + self.month
-
-        args = 2003, 4, 14
-
-        dt1 = self.theclass(*args)
-        dt2 = C(*args, **{'extra': 7})
-
-        self.assertEqual(dt2.__class__, C)
-        self.assertEqual(dt2.theAnswer, 42)
-        self.assertEqual(dt2.extra, 7)
-        self.assertEqual(dt1.toordinal(), dt2.toordinal())
-        self.assertEqual(dt2.newmeth(-7), dt1.year + dt1.month - 7)
-
-    def test_pickling_subclass_date(self):
-
-        args = 6, 7, 23
-        orig = SubclassDate(*args)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-
-    def test_backdoor_resistance(self):
-        # For fast unpickling, the constructor accepts a pickle string.
-        # This is a low-overhead backdoor.  A user can (by intent or
-        # mistake) pass a string directly, which (if it's the right length)
-        # will get treated like a pickle, and bypass the normal sanity
-        # checks in the constructor.  This can create insane objects.
-        # The constructor doesn't want to burn the time to validate all
-        # fields, but does check the month field.  This stops, e.g.,
-        # datetime.datetime('1995-03-25') from yielding an insane object.
-        base = '1995-03-25'
-        if not issubclass(self.theclass, datetime):
-            base = base[:4]
-        for month_byte in '9', chr(0), chr(13), '\xff':
-            self.assertRaises(TypeError, self.theclass,
-                                         base[:2] + month_byte + base[3:])
-        for ord_byte in range(1, 13):
-            # This shouldn't blow up because of the month byte alone.  If
-            # the implementation changes to do more-careful checking, it may
-            # blow up because other fields are insane.
-            self.theclass(base[:2] + chr(ord_byte) + base[3:])
-
-#############################################################################
-# datetime tests
-
-class SubclassDatetime(datetime):
-    sub_var = 1
-
-class TestDateTime(TestDate):
-
-    theclass = datetime
-
-    def test_basic_attributes(self):
-        dt = self.theclass(2002, 3, 1, 12, 0)
-        self.assertEqual(dt.year, 2002)
-        self.assertEqual(dt.month, 3)
-        self.assertEqual(dt.day, 1)
-        self.assertEqual(dt.hour, 12)
-        self.assertEqual(dt.minute, 0)
-        self.assertEqual(dt.second, 0)
-        self.assertEqual(dt.microsecond, 0)
-
-    def test_basic_attributes_nonzero(self):
-        # Make sure all attributes are non-zero so bugs in
-        # bit-shifting access show up.
-        dt = self.theclass(2002, 3, 1, 12, 59, 59, 8000)
-        self.assertEqual(dt.year, 2002)
-        self.assertEqual(dt.month, 3)
-        self.assertEqual(dt.day, 1)
-        self.assertEqual(dt.hour, 12)
-        self.assertEqual(dt.minute, 59)
-        self.assertEqual(dt.second, 59)
-        self.assertEqual(dt.microsecond, 8000)
-
-    def test_roundtrip(self):
-        for dt in (self.theclass(1, 2, 3, 4, 5, 6, 7),
-                   self.theclass.now()):
-            # Verify dt -> string -> datetime identity.
-            s = repr(dt)
-            self.assertTrue(s.startswith('datetime.'))
-            s = s[9:]
-            dt2 = eval(s)
-            self.assertEqual(dt, dt2)
-
-            # Verify identity via reconstructing from pieces.
-            dt2 = self.theclass(dt.year, dt.month, dt.day,
-                                dt.hour, dt.minute, dt.second,
-                                dt.microsecond)
-            self.assertEqual(dt, dt2)
-
-    def test_isoformat(self):
-        t = self.theclass(2, 3, 2, 4, 5, 1, 123)
-        self.assertEqual(t.isoformat(),    "0002-03-02T04:05:01.000123")
-        self.assertEqual(t.isoformat('T'), "0002-03-02T04:05:01.000123")
-        self.assertEqual(t.isoformat(' '), "0002-03-02 04:05:01.000123")
-        self.assertEqual(t.isoformat('\x00'), "0002-03-02\x0004:05:01.000123")
-        # str is ISO format with the separator forced to a blank.
-        self.assertEqual(str(t), "0002-03-02 04:05:01.000123")
-
-        t = self.theclass(2, 3, 2)
-        self.assertEqual(t.isoformat(),    "0002-03-02T00:00:00")
-        self.assertEqual(t.isoformat('T'), "0002-03-02T00:00:00")
-        self.assertEqual(t.isoformat(' '), "0002-03-02 00:00:00")
-        # str is ISO format with the separator forced to a blank.
-        self.assertEqual(str(t), "0002-03-02 00:00:00")
-
-    @unittest.skipIf(test_support.is_jython, "FIXME: some formats not accepted by Jython")
-    def test_format(self):
-        dt = self.theclass(2007, 9, 10, 4, 5, 1, 123)
-        self.assertEqual(dt.__format__(''), str(dt))
-
-        # check that a derived class's __str__() gets called
-        class A(self.theclass):
-            def __str__(self):
-                return 'A'
-        a = A(2007, 9, 10, 4, 5, 1, 123)
-        self.assertEqual(a.__format__(''), 'A')
-
-        # check that a derived class's strftime gets called
-        class B(self.theclass):
-            def strftime(self, format_spec):
-                return 'B'
-        b = B(2007, 9, 10, 4, 5, 1, 123)
-        self.assertEqual(b.__format__(''), str(dt))
-
-        for fmt in ["m:%m d:%d y:%y",
-                    "m:%m d:%d y:%y H:%H M:%M S:%S",
-                    "%z %Z",
-                    ]:
-            self.assertEqual(dt.__format__(fmt), dt.strftime(fmt))
-            self.assertEqual(a.__format__(fmt), dt.strftime(fmt))
-            self.assertEqual(b.__format__(fmt), 'B')
-
-    def test_more_ctime(self):
-        # Test fields that TestDate doesn't touch.
-        import time
-
-        t = self.theclass(2002, 3, 2, 18, 3, 5, 123)
-        self.assertEqual(t.ctime(), "Sat Mar  2 18:03:05 2002")
-        # Oops!  The next line fails on Win2K under MSVC 6, so it's commented
-        # out.  The difference is that t.ctime() produces " 2" for the day,
-        # but platform ctime() produces "02" for the day.  According to
-        # C99, t.ctime() is correct here.
-        # self.assertEqual(t.ctime(), time.ctime(time.mktime(t.timetuple())))
-
-        # So test a case where that difference doesn't matter.
-        t = self.theclass(2002, 3, 22, 18, 3, 5, 123)
-        self.assertEqual(t.ctime(), time.ctime(time.mktime(t.timetuple())))
-
-    def test_tz_independent_comparing(self):
-        dt1 = self.theclass(2002, 3, 1, 9, 0, 0)
-        dt2 = self.theclass(2002, 3, 1, 10, 0, 0)
-        dt3 = self.theclass(2002, 3, 1, 9, 0, 0)
-        self.assertEqual(dt1, dt3)
-        self.assertTrue(dt2 > dt3)
-
-        # Make sure comparison doesn't forget microseconds, and isn't done
-        # via comparing a float timestamp (an IEEE double doesn't have enough
-        # precision to span microsecond resolution across years 1 thru 9999,
-        # so comparing via timestamp necessarily calls some distinct values
-        # equal).
-        dt1 = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999998)
-        us = timedelta(microseconds=1)
-        dt2 = dt1 + us
-        self.assertEqual(dt2 - dt1, us)
-        self.assertTrue(dt1 < dt2)
-
-    def test_strftime_with_bad_tzname_replace(self):
-        # verify ok if tzinfo.tzname().replace() returns a non-string
-        class MyTzInfo(FixedOffset):
-            def tzname(self, dt):
-                class MyStr(str):
-                    def replace(self, *args):
-                        return None
-                return MyStr('name')
-        t = self.theclass(2005, 3, 2, 0, 0, 0, 0, MyTzInfo(3, 'name'))
-        self.assertRaises(TypeError, t.strftime, '%Z')
-
-    def test_bad_constructor_arguments(self):
-        # bad years
-        self.theclass(MINYEAR, 1, 1)  # no exception
-        self.theclass(MAXYEAR, 1, 1)  # no exception
-        self.assertRaises(ValueError, self.theclass, MINYEAR-1, 1, 1)
-        self.assertRaises(ValueError, self.theclass, MAXYEAR+1, 1, 1)
-        # bad months
-        self.theclass(2000, 1, 1)    # no exception
-        self.theclass(2000, 12, 1)   # no exception
-        self.assertRaises(ValueError, self.theclass, 2000, 0, 1)
-        self.assertRaises(ValueError, self.theclass, 2000, 13, 1)
-        # bad days
-        self.theclass(2000, 2, 29)   # no exception
-        self.theclass(2004, 2, 29)   # no exception
-        self.theclass(2400, 2, 29)   # no exception
-        self.assertRaises(ValueError, self.theclass, 2000, 2, 30)
-        self.assertRaises(ValueError, self.theclass, 2001, 2, 29)
-        self.assertRaises(ValueError, self.theclass, 2100, 2, 29)
-        self.assertRaises(ValueError, self.theclass, 1900, 2, 29)
-        self.assertRaises(ValueError, self.theclass, 2000, 1, 0)
-        self.assertRaises(ValueError, self.theclass, 2000, 1, 32)
-        # bad hours
-        self.theclass(2000, 1, 31, 0)    # no exception
-        self.theclass(2000, 1, 31, 23)   # no exception
-        self.assertRaises(ValueError, self.theclass, 2000, 1, 31, -1)
-        self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 24)
-        # bad minutes
-        self.theclass(2000, 1, 31, 23, 0)    # no exception
-        self.theclass(2000, 1, 31, 23, 59)   # no exception
-        self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 23, -1)
-        self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 23, 60)
-        # bad seconds
-        self.theclass(2000, 1, 31, 23, 59, 0)    # no exception
-        self.theclass(2000, 1, 31, 23, 59, 59)   # no exception
-        self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 23, 59, -1)
-        self.assertRaises(ValueError, self.theclass, 2000, 1, 31, 23, 59, 60)
-        # bad microseconds
-        self.theclass(2000, 1, 31, 23, 59, 59, 0)    # no exception
-        self.theclass(2000, 1, 31, 23, 59, 59, 999999)   # no exception
-        self.assertRaises(ValueError, self.theclass,
-                          2000, 1, 31, 23, 59, 59, -1)
-        self.assertRaises(ValueError, self.theclass,
-                          2000, 1, 31, 23, 59, 59,
-                          1000000)
-
-    def test_hash_equality(self):
-        d = self.theclass(2000, 12, 31, 23, 30, 17)
-        e = self.theclass(2000, 12, 31, 23, 30, 17)
-        self.assertEqual(d, e)
-        self.assertEqual(hash(d), hash(e))
-
-        dic = {d: 1}
-        dic[e] = 2
-        self.assertEqual(len(dic), 1)
-        self.assertEqual(dic[d], 2)
-        self.assertEqual(dic[e], 2)
-
-        d = self.theclass(2001,  1,  1,  0,  5, 17)
-        e = self.theclass(2001,  1,  1,  0,  5, 17)
-        self.assertEqual(d, e)
-        self.assertEqual(hash(d), hash(e))
-
-        dic = {d: 1}
-        dic[e] = 2
-        self.assertEqual(len(dic), 1)
-        self.assertEqual(dic[d], 2)
-        self.assertEqual(dic[e], 2)
-
-    def test_computations(self):
-        a = self.theclass(2002, 1, 31)
-        b = self.theclass(1956, 1, 31)
-        diff = a-b
-        self.assertEqual(diff.days, 46*365 + len(range(1956, 2002, 4)))
-        self.assertEqual(diff.seconds, 0)
-        self.assertEqual(diff.microseconds, 0)
-        a = self.theclass(2002, 3, 2, 17, 6)
-        millisec = timedelta(0, 0, 1000)
-        hour = timedelta(0, 3600)
-        day = timedelta(1)
-        week = timedelta(7)
-        self.assertEqual(a + hour, self.theclass(2002, 3, 2, 18, 6))
-        self.assertEqual(hour + a, self.theclass(2002, 3, 2, 18, 6))
-        self.assertEqual(a + 10*hour, self.theclass(2002, 3, 3, 3, 6))
-        self.assertEqual(a - hour, self.theclass(2002, 3, 2, 16, 6))
-        self.assertEqual(-hour + a, self.theclass(2002, 3, 2, 16, 6))
-        self.assertEqual(a - hour, a + -hour)
-        self.assertEqual(a - 20*hour, self.theclass(2002, 3, 1, 21, 6))
-        self.assertEqual(a + day, self.theclass(2002, 3, 3, 17, 6))
-        self.assertEqual(a - day, self.theclass(2002, 3, 1, 17, 6))
-        self.assertEqual(a + week, self.theclass(2002, 3, 9, 17, 6))
-        self.assertEqual(a - week, self.theclass(2002, 2, 23, 17, 6))
-        self.assertEqual(a + 52*week, self.theclass(2003, 3, 1, 17, 6))
-        self.assertEqual(a - 52*week, self.theclass(2001, 3, 3, 17, 6))
-        self.assertEqual((a + week) - a, week)
-        self.assertEqual((a + day) - a, day)
-        self.assertEqual((a + hour) - a, hour)
-        self.assertEqual((a + millisec) - a, millisec)
-        self.assertEqual((a - week) - a, -week)
-        self.assertEqual((a - day) - a, -day)
-        self.assertEqual((a - hour) - a, -hour)
-        self.assertEqual((a - millisec) - a, -millisec)
-        self.assertEqual(a - (a + week), -week)
-        self.assertEqual(a - (a + day), -day)
-        self.assertEqual(a - (a + hour), -hour)
-        self.assertEqual(a - (a + millisec), -millisec)
-        self.assertEqual(a - (a - week), week)
-        self.assertEqual(a - (a - day), day)
-        self.assertEqual(a - (a - hour), hour)
-        self.assertEqual(a - (a - millisec), millisec)
-        self.assertEqual(a + (week + day + hour + millisec),
-                         self.theclass(2002, 3, 10, 18, 6, 0, 1000))
-        self.assertEqual(a + (week + day + hour + millisec),
-                         (((a + week) + day) + hour) + millisec)
-        self.assertEqual(a - (week + day + hour + millisec),
-                         self.theclass(2002, 2, 22, 16, 5, 59, 999000))
-        self.assertEqual(a - (week + day + hour + millisec),
-                         (((a - week) - day) - hour) - millisec)
-        # Add/sub ints, longs, floats should be illegal
-        for i in 1, 1L, 1.0:
-            self.assertRaises(TypeError, lambda: a+i)
-            self.assertRaises(TypeError, lambda: a-i)
-            self.assertRaises(TypeError, lambda: i+a)
-            self.assertRaises(TypeError, lambda: i-a)
-
-        # delta - datetime is senseless.
-        self.assertRaises(TypeError, lambda: day - a)
-        # mixing datetime and (delta or datetime) via * or // is senseless
-        self.assertRaises(TypeError, lambda: day * a)
-        self.assertRaises(TypeError, lambda: a * day)
-        self.assertRaises(TypeError, lambda: day // a)
-        self.assertRaises(TypeError, lambda: a // day)
-        self.assertRaises(TypeError, lambda: a * a)
-        self.assertRaises(TypeError, lambda: a // a)
-        # datetime + datetime is senseless
-        self.assertRaises(TypeError, lambda: a + a)
-
-    def test_pickling(self):
-        args = 6, 7, 23, 20, 59, 1, 64**2
-        orig = self.theclass(*args)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-
-    def test_more_pickling(self):
-        a = self.theclass(2003, 2, 7, 16, 48, 37, 444116)
-        s = pickle.dumps(a)
-        b = pickle.loads(s)
-        self.assertEqual(b.year, 2003)
-        self.assertEqual(b.month, 2)
-        self.assertEqual(b.day, 7)
-
-    def test_pickling_subclass_datetime(self):
-        args = 6, 7, 23, 20, 59, 1, 64**2
-        orig = SubclassDatetime(*args)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-
-    def test_more_compare(self):
-        # The test_compare() inherited from TestDate covers the error cases.
-        # We just want to test lexicographic ordering on the members datetime
-        # has that date lacks.
-        args = [2000, 11, 29, 20, 58, 16, 999998]
-        t1 = self.theclass(*args)
-        t2 = self.theclass(*args)
-        self.assertTrue(t1 == t2)
-        self.assertTrue(t1 <= t2)
-        self.assertTrue(t1 >= t2)
-        self.assertTrue(not t1 != t2)
-        self.assertTrue(not t1 < t2)
-        self.assertTrue(not t1 > t2)
-        self.assertEqual(cmp(t1, t2), 0)
-        self.assertEqual(cmp(t2, t1), 0)
-
-        for i in range(len(args)):
-            newargs = args[:]
-            newargs[i] = args[i] + 1
-            t2 = self.theclass(*newargs)   # this is larger than t1
-            self.assertTrue(t1 < t2)
-            self.assertTrue(t2 > t1)
-            self.assertTrue(t1 <= t2)
-            self.assertTrue(t2 >= t1)
-            self.assertTrue(t1 != t2)
-            self.assertTrue(t2 != t1)
-            self.assertTrue(not t1 == t2)
-            self.assertTrue(not t2 == t1)
-            self.assertTrue(not t1 > t2)
-            self.assertTrue(not t2 < t1)
-            self.assertTrue(not t1 >= t2)
-            self.assertTrue(not t2 <= t1)
-            self.assertEqual(cmp(t1, t2), -1)
-            self.assertEqual(cmp(t2, t1), 1)
-
-
-    # A helper for timestamp constructor tests.
-    def verify_field_equality(self, expected, got):
-        self.assertEqual(expected.tm_year, got.year)
-        self.assertEqual(expected.tm_mon, got.month)
-        self.assertEqual(expected.tm_mday, got.day)
-        self.assertEqual(expected.tm_hour, got.hour)
-        self.assertEqual(expected.tm_min, got.minute)
-        self.assertEqual(expected.tm_sec, got.second)
-
-    def test_fromtimestamp(self):
-        import time
-
-        ts = time.time()
-        expected = time.localtime(ts)
-        got = self.theclass.fromtimestamp(ts)
-        self.verify_field_equality(expected, got)
-
-    def test_utcfromtimestamp(self):
-        import time
-
-        ts = time.time()
-        expected = time.gmtime(ts)
-        got = self.theclass.utcfromtimestamp(ts)
-        self.verify_field_equality(expected, got)
-
-    def test_microsecond_rounding(self):
-        # Test whether fromtimestamp "rounds up" floats that are less
-        # than one microsecond smaller than an integer.
-        self.assertEqual(self.theclass.fromtimestamp(0.9999999),
-                         self.theclass.fromtimestamp(1))
-
-    def test_insane_fromtimestamp(self):
-        # It's possible that some platform maps time_t to double,
-        # and that this test will fail there.  This test should
-        # exempt such platforms (provided they return reasonable
-        # results!).
-        for insane in -1e200, 1e200:
-            self.assertRaises(ValueError, self.theclass.fromtimestamp,
-                              insane)
-
-    def test_insane_utcfromtimestamp(self):
-        # It's possible that some platform maps time_t to double,
-        # and that this test will fail there.  This test should
-        # exempt such platforms (provided they return reasonable
-        # results!).
-        for insane in -1e200, 1e200:
-            self.assertRaises(ValueError, self.theclass.utcfromtimestamp,
-                              insane)
-    @unittest.skipIf(sys.platform == "win32", "Windows doesn't accept negative timestamps")
-    def test_negative_float_fromtimestamp(self):
-        # The result is tz-dependent; at least test that this doesn't
-        # fail (like it did before bug 1646728 was fixed).
-        self.theclass.fromtimestamp(-1.05)
-
-    @unittest.skipIf(sys.platform == "win32", "Windows doesn't accept negative timestamps")
-    def test_negative_float_utcfromtimestamp(self):
-        d = self.theclass.utcfromtimestamp(-1.05)
-        self.assertEqual(d, self.theclass(1969, 12, 31, 23, 59, 58, 950000))
-
-    def test_utcnow(self):
-        import time
-
-        # Call it a success if utcnow() and utcfromtimestamp() are within
-        # a second of each other.
-        tolerance = timedelta(seconds=1)
-        for dummy in range(3):
-            from_now = self.theclass.utcnow()
-            from_timestamp = self.theclass.utcfromtimestamp(time.time())
-            if abs(from_timestamp - from_now) <= tolerance:
-                break
-            # Else try again a few times.
-        self.assertTrue(abs(from_timestamp - from_now) <= tolerance)
-
-    @unittest.skipIf(test_support.is_jython, "FIXME: %f not accepted")
-    def test_strptime(self):
-        import _strptime
-
-        string = '2004-12-01 13:02:47.197'
-        format = '%Y-%m-%d %H:%M:%S.%f'
-        result, frac = _strptime._strptime(string, format)
-        expected = self.theclass(*(result[0:6]+(frac,)))
-        got = self.theclass.strptime(string, format)
-        self.assertEqual(expected, got)
-
-    def test_more_timetuple(self):
-        # This tests fields beyond those tested by the TestDate.test_timetuple.
-        t = self.theclass(2004, 12, 31, 6, 22, 33)
-        self.assertEqual(t.timetuple(), (2004, 12, 31, 6, 22, 33, 4, 366, -1))
-        self.assertEqual(t.timetuple(),
-                         (t.year, t.month, t.day,
-                          t.hour, t.minute, t.second,
-                          t.weekday(),
-                          t.toordinal() - date(t.year, 1, 1).toordinal() + 1,
-                          -1))
-        tt = t.timetuple()
-        self.assertEqual(tt.tm_year, t.year)
-        self.assertEqual(tt.tm_mon, t.month)
-        self.assertEqual(tt.tm_mday, t.day)
-        self.assertEqual(tt.tm_hour, t.hour)
-        self.assertEqual(tt.tm_min, t.minute)
-        self.assertEqual(tt.tm_sec, t.second)
-        self.assertEqual(tt.tm_wday, t.weekday())
-        self.assertEqual(tt.tm_yday, t.toordinal() -
-                                     date(t.year, 1, 1).toordinal() + 1)
-        self.assertEqual(tt.tm_isdst, -1)
-
-    def test_more_strftime(self):
-        # This tests fields beyond those tested by the TestDate.test_strftime.
-        t = self.theclass(2004, 12, 31, 6, 22, 33, 47)
-        self.assertEqual(t.strftime("%m %d %y %f %S %M %H %j"),
-                                    "12 31 04 000047 33 22 06 366")
-
-    def test_extract(self):
-        dt = self.theclass(2002, 3, 4, 18, 45, 3, 1234)
-        self.assertEqual(dt.date(), date(2002, 3, 4))
-        self.assertEqual(dt.time(), time(18, 45, 3, 1234))
-
-    def test_combine(self):
-        d = date(2002, 3, 4)
-        t = time(18, 45, 3, 1234)
-        expected = self.theclass(2002, 3, 4, 18, 45, 3, 1234)
-        combine = self.theclass.combine
-        dt = combine(d, t)
-        self.assertEqual(dt, expected)
-
-        dt = combine(time=t, date=d)
-        self.assertEqual(dt, expected)
-
-        self.assertEqual(d, dt.date())
-        self.assertEqual(t, dt.time())
-        self.assertEqual(dt, combine(dt.date(), dt.time()))
-
-        self.assertRaises(TypeError, combine) # need an arg
-        self.assertRaises(TypeError, combine, d) # need two args
-        self.assertRaises(TypeError, combine, t, d) # args reversed
-        self.assertRaises(TypeError, combine, d, t, 1) # too many args
-        self.assertRaises(TypeError, combine, "date", "time") # wrong types
-
-    def test_replace(self):
-        cls = self.theclass
-        args = [1, 2, 3, 4, 5, 6, 7]
-        base = cls(*args)
-        self.assertEqual(base, base.replace())
-
-        i = 0
-        for name, newval in (("year", 2),
-                             ("month", 3),
-                             ("day", 4),
-                             ("hour", 5),
-                             ("minute", 6),
-                             ("second", 7),
-                             ("microsecond", 8)):
-            newargs = args[:]
-            newargs[i] = newval
-            expected = cls(*newargs)
-            got = base.replace(**{name: newval})
-            self.assertEqual(expected, got)
-            i += 1
-
-        # Out of bounds.
-        base = cls(2000, 2, 29)
-        self.assertRaises(ValueError, base.replace, year=2001)
-
-    def test_astimezone(self):
-        # Pretty boring!  The TZ test is more interesting here.  astimezone()
-        # simply can't be applied to a naive object.
-        dt = self.theclass.now()
-        f = FixedOffset(44, "")
-        self.assertRaises(TypeError, dt.astimezone) # not enough args
-        self.assertRaises(TypeError, dt.astimezone, f, f) # too many args
-        self.assertRaises(TypeError, dt.astimezone, dt) # arg wrong type
-        self.assertRaises(ValueError, dt.astimezone, f) # naive
-        self.assertRaises(ValueError, dt.astimezone, tz=f)  # naive
-
-        class Bogus(tzinfo):
-            def utcoffset(self, dt): return None
-            def dst(self, dt): return timedelta(0)
-        bog = Bogus()
-        self.assertRaises(ValueError, dt.astimezone, bog)   # naive
-
-        class AlsoBogus(tzinfo):
-            def utcoffset(self, dt): return timedelta(0)
-            def dst(self, dt): return None
-        alsobog = AlsoBogus()
-        self.assertRaises(ValueError, dt.astimezone, alsobog) # also naive
-
-    def test_subclass_datetime(self):
-
-        class C(self.theclass):
-            theAnswer = 42
-
-            def __new__(cls, *args, **kws):
-                temp = kws.copy()
-                extra = temp.pop('extra')
-                result = self.theclass.__new__(cls, *args, **temp)
-                result.extra = extra
-                return result
-
-            def newmeth(self, start):
-                return start + self.year + self.month + self.second
-
-        args = 2003, 4, 14, 12, 13, 41
-
-        dt1 = self.theclass(*args)
-        dt2 = C(*args, **{'extra': 7})
-
-        self.assertEqual(dt2.__class__, C)
-        self.assertEqual(dt2.theAnswer, 42)
-        self.assertEqual(dt2.extra, 7)
-        self.assertEqual(dt1.toordinal(), dt2.toordinal())
-        self.assertEqual(dt2.newmeth(-7), dt1.year + dt1.month +
-                                          dt1.second - 7)
-
-class SubclassTime(time):
-    sub_var = 1
-
-class TestTime(HarmlessMixedComparison, unittest.TestCase):
-
-    theclass = time
-
-    def test_basic_attributes(self):
-        t = self.theclass(12, 0)
-        self.assertEqual(t.hour, 12)
-        self.assertEqual(t.minute, 0)
-        self.assertEqual(t.second, 0)
-        self.assertEqual(t.microsecond, 0)
-
-    def test_basic_attributes_nonzero(self):
-        # Make sure all attributes are non-zero so bugs in
-        # bit-shifting access show up.
-        t = self.theclass(12, 59, 59, 8000)
-        self.assertEqual(t.hour, 12)
-        self.assertEqual(t.minute, 59)
-        self.assertEqual(t.second, 59)
-        self.assertEqual(t.microsecond, 8000)
-
-    def test_roundtrip(self):
-        t = self.theclass(1, 2, 3, 4)
-
-        # Verify t -> string -> time identity.
-        s = repr(t)
-        self.assertTrue(s.startswith('datetime.'))
-        s = s[9:]
-        t2 = eval(s)
-        self.assertEqual(t, t2)
-
-        # Verify identity via reconstructing from pieces.
-        t2 = self.theclass(t.hour, t.minute, t.second,
-                           t.microsecond)
-        self.assertEqual(t, t2)
-
-    def test_comparing(self):
-        args = [1, 2, 3, 4]
-        t1 = self.theclass(*args)
-        t2 = self.theclass(*args)
-        self.assertTrue(t1 == t2)
-        self.assertTrue(t1 <= t2)
-        self.assertTrue(t1 >= t2)
-        self.assertTrue(not t1 != t2)
-        self.assertTrue(not t1 < t2)
-        self.assertTrue(not t1 > t2)
-        self.assertEqual(cmp(t1, t2), 0)
-        self.assertEqual(cmp(t2, t1), 0)
-
-        for i in range(len(args)):
-            newargs = args[:]
-            newargs[i] = args[i] + 1
-            t2 = self.theclass(*newargs)   # this is larger than t1
-            self.assertTrue(t1 < t2)
-            self.assertTrue(t2 > t1)
-            self.assertTrue(t1 <= t2)
-            self.assertTrue(t2 >= t1)
-            self.assertTrue(t1 != t2)
-            self.assertTrue(t2 != t1)
-            self.assertTrue(not t1 == t2)
-            self.assertTrue(not t2 == t1)
-            self.assertTrue(not t1 > t2)
-            self.assertTrue(not t2 < t1)
-            self.assertTrue(not t1 >= t2)
-            self.assertTrue(not t2 <= t1)
-            self.assertEqual(cmp(t1, t2), -1)
-            self.assertEqual(cmp(t2, t1), 1)
-
-        for badarg in OTHERSTUFF:
-            self.assertEqual(t1 == badarg, False)
-            self.assertEqual(t1 != badarg, True)
-            self.assertEqual(badarg == t1, False)
-            self.assertEqual(badarg != t1, True)
-
-            self.assertRaises(TypeError, lambda: t1 <= badarg)
-            self.assertRaises(TypeError, lambda: t1 < badarg)
-            self.assertRaises(TypeError, lambda: t1 > badarg)
-            self.assertRaises(TypeError, lambda: t1 >= badarg)
-            self.assertRaises(TypeError, lambda: badarg <= t1)
-            self.assertRaises(TypeError, lambda: badarg < t1)
-            self.assertRaises(TypeError, lambda: badarg > t1)
-            self.assertRaises(TypeError, lambda: badarg >= t1)
-
-    def test_bad_constructor_arguments(self):
-        # bad hours
-        self.theclass(0, 0)    # no exception
-        self.theclass(23, 0)   # no exception
-        self.assertRaises(ValueError, self.theclass, -1, 0)
-        self.assertRaises(ValueError, self.theclass, 24, 0)
-        # bad minutes
-        self.theclass(23, 0)    # no exception
-        self.theclass(23, 59)   # no exception
-        self.assertRaises(ValueError, self.theclass, 23, -1)
-        self.assertRaises(ValueError, self.theclass, 23, 60)
-        # bad seconds
-        self.theclass(23, 59, 0)    # no exception
-        self.theclass(23, 59, 59)   # no exception
-        self.assertRaises(ValueError, self.theclass, 23, 59, -1)
-        self.assertRaises(ValueError, self.theclass, 23, 59, 60)
-        # bad microseconds
-        self.theclass(23, 59, 59, 0)        # no exception
-        self.theclass(23, 59, 59, 999999)   # no exception
-        self.assertRaises(ValueError, self.theclass, 23, 59, 59, -1)
-        self.assertRaises(ValueError, self.theclass, 23, 59, 59, 1000000)
-
-    def test_hash_equality(self):
-        d = self.theclass(23, 30, 17)
-        e = self.theclass(23, 30, 17)
-        self.assertEqual(d, e)
-        self.assertEqual(hash(d), hash(e))
-
-        dic = {d: 1}
-        dic[e] = 2
-        self.assertEqual(len(dic), 1)
-        self.assertEqual(dic[d], 2)
-        self.assertEqual(dic[e], 2)
-
-        d = self.theclass(0,  5, 17)
-        e = self.theclass(0,  5, 17)
-        self.assertEqual(d, e)
-        self.assertEqual(hash(d), hash(e))
-
-        dic = {d: 1}
-        dic[e] = 2
-        self.assertEqual(len(dic), 1)
-        self.assertEqual(dic[d], 2)
-        self.assertEqual(dic[e], 2)
-
-    def test_isoformat(self):
-        t = self.theclass(4, 5, 1, 123)
-        self.assertEqual(t.isoformat(), "04:05:01.000123")
-        self.assertEqual(t.isoformat(), str(t))
-
-        t = self.theclass()
-        self.assertEqual(t.isoformat(), "00:00:00")
-        self.assertEqual(t.isoformat(), str(t))
-
-        t = self.theclass(microsecond=1)
-        self.assertEqual(t.isoformat(), "00:00:00.000001")
-        self.assertEqual(t.isoformat(), str(t))
-
-        t = self.theclass(microsecond=10)
-        self.assertEqual(t.isoformat(), "00:00:00.000010")
-        self.assertEqual(t.isoformat(), str(t))
-
-        t = self.theclass(microsecond=100)
-        self.assertEqual(t.isoformat(), "00:00:00.000100")
-        self.assertEqual(t.isoformat(), str(t))
-
-        t = self.theclass(microsecond=1000)
-        self.assertEqual(t.isoformat(), "00:00:00.001000")
-        self.assertEqual(t.isoformat(), str(t))
-
-        t = self.theclass(microsecond=10000)
-        self.assertEqual(t.isoformat(), "00:00:00.010000")
-        self.assertEqual(t.isoformat(), str(t))
-
-        t = self.theclass(microsecond=100000)
-        self.assertEqual(t.isoformat(), "00:00:00.100000")
-        self.assertEqual(t.isoformat(), str(t))
-
-    def test_1653736(self):
-        # verify it doesn't accept extra keyword arguments
-        t = self.theclass(second=1)
-        self.assertRaises(TypeError, t.isoformat, foo=3)
-
-    def test_strftime(self):
-        t = self.theclass(1, 2, 3, 4)
-        self.assertEqual(t.strftime('%H %M %S %f'), "01 02 03 000004")
-        # A naive object replaces %z and %Z with empty strings.
-        self.assertEqual(t.strftime("'%z' '%Z'"), "'' ''")
-
-    @unittest.skipIf(test_support.is_jython, "FIXME: some formats not accepted")
-    def test_format(self):
-        t = self.theclass(1, 2, 3, 4)
-        self.assertEqual(t.__format__(''), str(t))
-
-        # check that a derived class's __str__() gets called
-        class A(self.theclass):
-            def __str__(self):
-                return 'A'
-        a = A(1, 2, 3, 4)
-        self.assertEqual(a.__format__(''), 'A')
-
-        # check that a derived class's strftime gets called
-        class B(self.theclass):
-            def strftime(self, format_spec):
-                return 'B'
-        b = B(1, 2, 3, 4)
-        self.assertEqual(b.__format__(''), str(t))
-
-        for fmt in ['%H %M %S',
-                    ]:
-            self.assertEqual(t.__format__(fmt), t.strftime(fmt))
-            self.assertEqual(a.__format__(fmt), t.strftime(fmt))
-            self.assertEqual(b.__format__(fmt), 'B')
-
-    def test_str(self):
-        self.assertEqual(str(self.theclass(1, 2, 3, 4)), "01:02:03.000004")
-        self.assertEqual(str(self.theclass(10, 2, 3, 4000)), "10:02:03.004000")
-        self.assertEqual(str(self.theclass(0, 2, 3, 400000)), "00:02:03.400000")
-        self.assertEqual(str(self.theclass(12, 2, 3, 0)), "12:02:03")
-        self.assertEqual(str(self.theclass(23, 15, 0, 0)), "23:15:00")
-
-    def test_repr(self):
-        name = 'datetime.' + self.theclass.__name__
-        self.assertEqual(repr(self.theclass(1, 2, 3, 4)),
-                         "%s(1, 2, 3, 4)" % name)
-        self.assertEqual(repr(self.theclass(10, 2, 3, 4000)),
-                         "%s(10, 2, 3, 4000)" % name)
-        self.assertEqual(repr(self.theclass(0, 2, 3, 400000)),
-                         "%s(0, 2, 3, 400000)" % name)
-        self.assertEqual(repr(self.theclass(12, 2, 3, 0)),
-                         "%s(12, 2, 3)" % name)
-        self.assertEqual(repr(self.theclass(23, 15, 0, 0)),
-                         "%s(23, 15)" % name)
-
-    def test_resolution_info(self):
-        self.assertIsInstance(self.theclass.min, self.theclass)
-        self.assertIsInstance(self.theclass.max, self.theclass)
-        self.assertIsInstance(self.theclass.resolution, timedelta)
-        self.assertTrue(self.theclass.max > self.theclass.min)
-
-    def test_pickling(self):
-        args = 20, 59, 16, 64**2
-        orig = self.theclass(*args)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-
-    def test_pickling_subclass_time(self):
-        args = 20, 59, 16, 64**2
-        orig = SubclassTime(*args)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-
-    def test_bool(self):
-        cls = self.theclass
-        self.assertTrue(cls(1))
-        self.assertTrue(cls(0, 1))
-        self.assertTrue(cls(0, 0, 1))
-        self.assertTrue(cls(0, 0, 0, 1))
-        self.assertTrue(not cls(0))
-        self.assertTrue(not cls())
-
-    def test_replace(self):
-        cls = self.theclass
-        args = [1, 2, 3, 4]
-        base = cls(*args)
-        self.assertEqual(base, base.replace())
-
-        i = 0
-        for name, newval in (("hour", 5),
-                             ("minute", 6),
-                             ("second", 7),
-                             ("microsecond", 8)):
-            newargs = args[:]
-            newargs[i] = newval
-            expected = cls(*newargs)
-            got = base.replace(**{name: newval})
-            self.assertEqual(expected, got)
-            i += 1
-
-        # Out of bounds.
-        base = cls(1)
-        self.assertRaises(ValueError, base.replace, hour=24)
-        self.assertRaises(ValueError, base.replace, minute=-1)
-        self.assertRaises(ValueError, base.replace, second=100)
-        self.assertRaises(ValueError, base.replace, microsecond=1000000)
-
-    def test_subclass_time(self):
-
-        class C(self.theclass):
-            theAnswer = 42
-
-            def __new__(cls, *args, **kws):
-                temp = kws.copy()
-                extra = temp.pop('extra')
-                result = self.theclass.__new__(cls, *args, **temp)
-                result.extra = extra
-                return result
-
-            def newmeth(self, start):
-                return start + self.hour + self.second
-
-        args = 4, 5, 6
-
-        dt1 = self.theclass(*args)
-        dt2 = C(*args, **{'extra': 7})
-
-        self.assertEqual(dt2.__class__, C)
-        self.assertEqual(dt2.theAnswer, 42)
-        self.assertEqual(dt2.extra, 7)
-        self.assertEqual(dt1.isoformat(), dt2.isoformat())
-        self.assertEqual(dt2.newmeth(-7), dt1.hour + dt1.second - 7)
-
-    def test_backdoor_resistance(self):
-        # see TestDate.test_backdoor_resistance().
-        base = '2:59.0'
-        for hour_byte in ' ', '9', chr(24), '\xff':
-            self.assertRaises(TypeError, self.theclass,
-                                         hour_byte + base[1:])
-
-# A mixin for classes with a tzinfo= argument.  Subclasses must define
-# theclass as a class atribute, and theclass(1, 1, 1, tzinfo=whatever)
-# must be legit (which is true for time and datetime).
-class TZInfoBase:
-
-    def test_argument_passing(self):
-        cls = self.theclass
-        # A datetime passes itself on, a time passes None.
-        class introspective(tzinfo):
-            def tzname(self, dt):    return dt and "real" or "none"
-            def utcoffset(self, dt):
-                return timedelta(minutes = dt and 42 or -42)
-            dst = utcoffset
-
-        obj = cls(1, 2, 3, tzinfo=introspective())
-
-        expected = cls is time and "none" or "real"
-        self.assertEqual(obj.tzname(), expected)
-
-        expected = timedelta(minutes=(cls is time and -42 or 42))
-        self.assertEqual(obj.utcoffset(), expected)
-        self.assertEqual(obj.dst(), expected)
-
-    def test_bad_tzinfo_classes(self):
-        cls = self.theclass
-        self.assertRaises(TypeError, cls, 1, 1, 1, tzinfo=12)
-
-        class NiceTry(object):
-            def __init__(self): pass
-            def utcoffset(self, dt): pass
-        self.assertRaises(TypeError, cls, 1, 1, 1, tzinfo=NiceTry)
-
-        class BetterTry(tzinfo):
-            def __init__(self): pass
-            def utcoffset(self, dt): pass
-        b = BetterTry()
-        t = cls(1, 1, 1, tzinfo=b)
-        self.assertTrue(t.tzinfo is b)
-
-    def test_utc_offset_out_of_bounds(self):
-        class Edgy(tzinfo):
-            def __init__(self, offset):
-                self.offset = timedelta(minutes=offset)
-            def utcoffset(self, dt):
-                return self.offset
-
-        cls = self.theclass
-        for offset, legit in ((-1440, False),
-                              (-1439, True),
-                              (1439, True),
-                              (1440, False)):
-            if cls is time:
-                t = cls(1, 2, 3, tzinfo=Edgy(offset))
-            elif cls is datetime:
-                t = cls(6, 6, 6, 1, 2, 3, tzinfo=Edgy(offset))
-            else:
-                assert 0, "impossible"
-            if legit:
-                aofs = abs(offset)
-                h, m = divmod(aofs, 60)
-                tag = "%c%02d:%02d" % (offset < 0 and '-' or '+', h, m)
-                if isinstance(t, datetime):
-                    t = t.timetz()
-                self.assertEqual(str(t), "01:02:03" + tag)
-            else:
-                self.assertRaises(ValueError, str, t)
-
-    def test_tzinfo_classes(self):
-        cls = self.theclass
-        class C1(tzinfo):
-            def utcoffset(self, dt): return None
-            def dst(self, dt): return None
-            def tzname(self, dt): return None
-        for t in (cls(1, 1, 1),
-                  cls(1, 1, 1, tzinfo=None),
-                  cls(1, 1, 1, tzinfo=C1())):
-            self.assertTrue(t.utcoffset() is None)
-            self.assertTrue(t.dst() is None)
-            self.assertTrue(t.tzname() is None)
-
-        class C3(tzinfo):
-            def utcoffset(self, dt): return timedelta(minutes=-1439)
-            def dst(self, dt): return timedelta(minutes=1439)
-            def tzname(self, dt): return "aname"
-        t = cls(1, 1, 1, tzinfo=C3())
-        self.assertEqual(t.utcoffset(), timedelta(minutes=-1439))
-        self.assertEqual(t.dst(), timedelta(minutes=1439))
-        self.assertEqual(t.tzname(), "aname")
-
-        # Wrong types.
-        class C4(tzinfo):
-            def utcoffset(self, dt): return "aname"
-            def dst(self, dt): return 7
-            def tzname(self, dt): return 0
-        t = cls(1, 1, 1, tzinfo=C4())
-        self.assertRaises(TypeError, t.utcoffset)
-        self.assertRaises(TypeError, t.dst)
-        self.assertRaises(TypeError, t.tzname)
-
-        # Offset out of range.
-        class C6(tzinfo):
-            def utcoffset(self, dt): return timedelta(hours=-24)
-            def dst(self, dt): return timedelta(hours=24)
-        t = cls(1, 1, 1, tzinfo=C6())
-        self.assertRaises(ValueError, t.utcoffset)
-        self.assertRaises(ValueError, t.dst)
-
-        # Not a whole number of minutes.
-        class C7(tzinfo):
-            def utcoffset(self, dt): return timedelta(seconds=61)
-            def dst(self, dt): return timedelta(microseconds=-81)
-        t = cls(1, 1, 1, tzinfo=C7())
-        self.assertRaises(ValueError, t.utcoffset)
-        self.assertRaises(ValueError, t.dst)
-
-    def test_aware_compare(self):
-        cls = self.theclass
-
-        # Ensure that utcoffset() gets ignored if the comparands have
-        # the same tzinfo member.
-        class OperandDependentOffset(tzinfo):
-            def utcoffset(self, t):
-                if t.minute < 10:
-                    # d0 and d1 equal after adjustment
-                    return timedelta(minutes=t.minute)
-                else:
-                    # d2 off in the weeds
-                    return timedelta(minutes=59)
-
-        base = cls(8, 9, 10, tzinfo=OperandDependentOffset())
-        d0 = base.replace(minute=3)
-        d1 = base.replace(minute=9)
-        d2 = base.replace(minute=11)
-        for x in d0, d1, d2:
-            for y in d0, d1, d2:
-                got = cmp(x, y)
-                expected = cmp(x.minute, y.minute)
-                self.assertEqual(got, expected)
-
-        # However, if they're different members, uctoffset is not ignored.
-        # Note that a time can't actually have an operand-depedent offset,
-        # though (and time.utcoffset() passes None to tzinfo.utcoffset()),
-        # so skip this test for time.
-        if cls is not time:
-            d0 = base.replace(minute=3, tzinfo=OperandDependentOffset())
-            d1 = base.replace(minute=9, tzinfo=OperandDependentOffset())
-            d2 = base.replace(minute=11, tzinfo=OperandDependentOffset())
-            for x in d0, d1, d2:
-                for y in d0, d1, d2:
-                    got = cmp(x, y)
-                    if (x is d0 or x is d1) and (y is d0 or y is d1):
-                        expected = 0
-                    elif x is y is d2:
-                        expected = 0
-                    elif x is d2:
-                        expected = -1
-                    else:
-                        assert y is d2
-                        expected = 1
-                    self.assertEqual(got, expected)
-
-
-# Testing time objects with a non-None tzinfo.
-class TestTimeTZ(TestTime, TZInfoBase, unittest.TestCase):
-    theclass = time
-
-    def test_empty(self):
-        t = self.theclass()
-        self.assertEqual(t.hour, 0)
-        self.assertEqual(t.minute, 0)
-        self.assertEqual(t.second, 0)
-        self.assertEqual(t.microsecond, 0)
-        self.assertTrue(t.tzinfo is None)
-
-    def test_zones(self):
-        est = FixedOffset(-300, "EST", 1)
-        utc = FixedOffset(0, "UTC", -2)
-        met = FixedOffset(60, "MET", 3)
-        t1 = time( 7, 47, tzinfo=est)
-        t2 = time(12, 47, tzinfo=utc)
-        t3 = time(13, 47, tzinfo=met)
-        t4 = time(microsecond=40)
-        t5 = time(microsecond=40, tzinfo=utc)
-
-        self.assertEqual(t1.tzinfo, est)
-        self.assertEqual(t2.tzinfo, utc)
-        self.assertEqual(t3.tzinfo, met)
-        self.assertTrue(t4.tzinfo is None)
-        self.assertEqual(t5.tzinfo, utc)
-
-        self.assertEqual(t1.utcoffset(), timedelta(minutes=-300))
-        self.assertEqual(t2.utcoffset(), timedelta(minutes=0))
-        self.assertEqual(t3.utcoffset(), timedelta(minutes=60))
-        self.assertTrue(t4.utcoffset() is None)
-        self.assertRaises(TypeError, t1.utcoffset, "no args")
-
-        self.assertEqual(t1.tzname(), "EST")
-        self.assertEqual(t2.tzname(), "UTC")
-        self.assertEqual(t3.tzname(), "MET")
-        self.assertTrue(t4.tzname() is None)
-        self.assertRaises(TypeError, t1.tzname, "no args")
-
-        self.assertEqual(t1.dst(), timedelta(minutes=1))
-        self.assertEqual(t2.dst(), timedelta(minutes=-2))
-        self.assertEqual(t3.dst(), timedelta(minutes=3))
-        self.assertTrue(t4.dst() is None)
-        self.assertRaises(TypeError, t1.dst, "no args")
-
-        self.assertEqual(hash(t1), hash(t2))
-        self.assertEqual(hash(t1), hash(t3))
-        self.assertEqual(hash(t2), hash(t3))
-
-        self.assertEqual(t1, t2)
-        self.assertEqual(t1, t3)
-        self.assertEqual(t2, t3)
-        self.assertRaises(TypeError, lambda: t4 == t5) # mixed tz-aware & naive
-        self.assertRaises(TypeError, lambda: t4 < t5) # mixed tz-aware & naive
-        self.assertRaises(TypeError, lambda: t5 < t4) # mixed tz-aware & naive
-
-        self.assertEqual(str(t1), "07:47:00-05:00")
-        self.assertEqual(str(t2), "12:47:00+00:00")
-        self.assertEqual(str(t3), "13:47:00+01:00")
-        self.assertEqual(str(t4), "00:00:00.000040")
-        self.assertEqual(str(t5), "00:00:00.000040+00:00")
-
-        self.assertEqual(t1.isoformat(), "07:47:00-05:00")
-        self.assertEqual(t2.isoformat(), "12:47:00+00:00")
-        self.assertEqual(t3.isoformat(), "13:47:00+01:00")
-        self.assertEqual(t4.isoformat(), "00:00:00.000040")
-        self.assertEqual(t5.isoformat(), "00:00:00.000040+00:00")
-
-        d = 'datetime.time'
-        self.assertEqual(repr(t1), d + "(7, 47, tzinfo=est)")
-        self.assertEqual(repr(t2), d + "(12, 47, tzinfo=utc)")
-        self.assertEqual(repr(t3), d + "(13, 47, tzinfo=met)")
-        self.assertEqual(repr(t4), d + "(0, 0, 0, 40)")
-        self.assertEqual(repr(t5), d + "(0, 0, 0, 40, tzinfo=utc)")
-
-        self.assertEqual(t1.strftime("%H:%M:%S %%Z=%Z %%z=%z"),
-                                     "07:47:00 %Z=EST %z=-0500")
-        self.assertEqual(t2.strftime("%H:%M:%S %Z %z"), "12:47:00 UTC +0000")
-        self.assertEqual(t3.strftime("%H:%M:%S %Z %z"), "13:47:00 MET +0100")
-
-        yuck = FixedOffset(-1439, "%z %Z %%z%%Z")
-        t1 = time(23, 59, tzinfo=yuck)
-        self.assertEqual(t1.strftime("%H:%M %%Z='%Z' %%z='%z'"),
-                                     "23:59 %Z='%z %Z %%z%%Z' %z='-2359'")
-
-        # Check that an invalid tzname result raises an exception.
-        class Badtzname(tzinfo):
-            def tzname(self, dt): return 42
-        t = time(2, 3, 4, tzinfo=Badtzname())
-        self.assertEqual(t.strftime("%H:%M:%S"), "02:03:04")
-        self.assertRaises(TypeError, t.strftime, "%Z")
-
-    def test_hash_edge_cases(self):
-        # Offsets that overflow a basic time.
-        t1 = self.theclass(0, 1, 2, 3, tzinfo=FixedOffset(1439, ""))
-        t2 = self.theclass(0, 0, 2, 3, tzinfo=FixedOffset(1438, ""))
-        self.assertEqual(hash(t1), hash(t2))
-
-        t1 = self.theclass(23, 58, 6, 100, tzinfo=FixedOffset(-1000, ""))
-        t2 = self.theclass(23, 48, 6, 100, tzinfo=FixedOffset(-1010, ""))
-        self.assertEqual(hash(t1), hash(t2))
-
-    def test_pickling(self):
-        # Try one without a tzinfo.
-        args = 20, 59, 16, 64**2
-        orig = self.theclass(*args)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-
-        # Try one with a tzinfo.
-        tinfo = PicklableFixedOffset(-300, 'cookie')
-        orig = self.theclass(5, 6, 7, tzinfo=tinfo)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
-            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
-            self.assertEqual(derived.tzname(), 'cookie')
-
-    def test_more_bool(self):
-        # Test cases with non-None tzinfo.
-        cls = self.theclass
-
-        t = cls(0, tzinfo=FixedOffset(-300, ""))
-        self.assertTrue(t)
-
-        t = cls(5, tzinfo=FixedOffset(-300, ""))
-        self.assertTrue(t)
-
-        t = cls(5, tzinfo=FixedOffset(300, ""))
-        self.assertTrue(not t)
-
-        t = cls(23, 59, tzinfo=FixedOffset(23*60 + 59, ""))
-        self.assertTrue(not t)
-
-        # Mostly ensuring this doesn't overflow internally.
-        t = cls(0, tzinfo=FixedOffset(23*60 + 59, ""))
-        self.assertTrue(t)
-
-        # But this should yield a value error -- the utcoffset is bogus.
-        t = cls(0, tzinfo=FixedOffset(24*60, ""))
-        self.assertRaises(ValueError, lambda: bool(t))
-
-        # Likewise.
-        t = cls(0, tzinfo=FixedOffset(-24*60, ""))
-        self.assertRaises(ValueError, lambda: bool(t))
-
-    def test_replace(self):
-        cls = self.theclass
-        z100 = FixedOffset(100, "+100")
-        zm200 = FixedOffset(timedelta(minutes=-200), "-200")
-        args = [1, 2, 3, 4, z100]
-        base = cls(*args)
-        self.assertEqual(base, base.replace())
-
-        i = 0
-        for name, newval in (("hour", 5),
-                             ("minute", 6),
-                             ("second", 7),
-                             ("microsecond", 8),
-                             ("tzinfo", zm200)):
-            newargs = args[:]
-            newargs[i] = newval
-            expected = cls(*newargs)
-            got = base.replace(**{name: newval})
-            self.assertEqual(expected, got)
-            i += 1
-
-        # Ensure we can get rid of a tzinfo.
-        self.assertEqual(base.tzname(), "+100")
-        base2 = base.replace(tzinfo=None)
-        self.assertTrue(base2.tzinfo is None)
-        self.assertTrue(base2.tzname() is None)
-
-        # Ensure we can add one.
-        base3 = base2.replace(tzinfo=z100)
-        self.assertEqual(base, base3)
-        self.assertTrue(base.tzinfo is base3.tzinfo)
-
-        # Out of bounds.
-        base = cls(1)
-        self.assertRaises(ValueError, base.replace, hour=24)
-        self.assertRaises(ValueError, base.replace, minute=-1)
-        self.assertRaises(ValueError, base.replace, second=100)
-        self.assertRaises(ValueError, base.replace, microsecond=1000000)
-
-    def test_mixed_compare(self):
-        t1 = time(1, 2, 3)
-        t2 = time(1, 2, 3)
-        self.assertEqual(t1, t2)
-        t2 = t2.replace(tzinfo=None)
-        self.assertEqual(t1, t2)
-        t2 = t2.replace(tzinfo=FixedOffset(None, ""))
-        self.assertEqual(t1, t2)
-        t2 = t2.replace(tzinfo=FixedOffset(0, ""))
-        self.assertRaises(TypeError, lambda: t1 == t2)
-
-        # In time w/ identical tzinfo objects, utcoffset is ignored.
-        class Varies(tzinfo):
-            def __init__(self):
-                self.offset = timedelta(minutes=22)
-            def utcoffset(self, t):
-                self.offset += timedelta(minutes=1)
-                return self.offset
-
-        v = Varies()
-        t1 = t2.replace(tzinfo=v)
-        t2 = t2.replace(tzinfo=v)
-        self.assertEqual(t1.utcoffset(), timedelta(minutes=23))
-        self.assertEqual(t2.utcoffset(), timedelta(minutes=24))
-        self.assertEqual(t1, t2)
-
-        # But if they're not identical, it isn't ignored.
-        t2 = t2.replace(tzinfo=Varies())
-        self.assertTrue(t1 < t2)  # t1's offset counter still going up
-
-    def test_subclass_timetz(self):
-
-        class C(self.theclass):
-            theAnswer = 42
-
-            def __new__(cls, *args, **kws):
-                temp = kws.copy()
-                extra = temp.pop('extra')
-                result = self.theclass.__new__(cls, *args, **temp)
-                result.extra = extra
-                return result
-
-            def newmeth(self, start):
-                return start + self.hour + self.second
-
-        args = 4, 5, 6, 500, FixedOffset(-300, "EST", 1)
-
-        dt1 = self.theclass(*args)
-        dt2 = C(*args, **{'extra': 7})
-
-        self.assertEqual(dt2.__class__, C)
-        self.assertEqual(dt2.theAnswer, 42)
-        self.assertEqual(dt2.extra, 7)
-        self.assertEqual(dt1.utcoffset(), dt2.utcoffset())
-        self.assertEqual(dt2.newmeth(-7), dt1.hour + dt1.second - 7)
-
-
-# Testing datetime objects with a non-None tzinfo.
-
-class TestDateTimeTZ(TestDateTime, TZInfoBase, unittest.TestCase):
-    theclass = datetime
-
-    def test_trivial(self):
-        dt = self.theclass(1, 2, 3, 4, 5, 6, 7)
-        self.assertEqual(dt.year, 1)
-        self.assertEqual(dt.month, 2)
-        self.assertEqual(dt.day, 3)
-        self.assertEqual(dt.hour, 4)
-        self.assertEqual(dt.minute, 5)
-        self.assertEqual(dt.second, 6)
-        self.assertEqual(dt.microsecond, 7)
-        self.assertEqual(dt.tzinfo, None)
-
-    def test_even_more_compare(self):
-        # The test_compare() and test_more_compare() inherited from TestDate
-        # and TestDateTime covered non-tzinfo cases.
-
-        # Smallest possible after UTC adjustment.
-        t1 = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, ""))
-        # Largest possible after UTC adjustment.
-        t2 = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999,
-                           tzinfo=FixedOffset(-1439, ""))
-
-        # Make sure those compare correctly, and w/o overflow.
-        self.assertTrue(t1 < t2)
-        self.assertTrue(t1 != t2)
-        self.assertTrue(t2 > t1)
-
-        self.assertTrue(t1 == t1)
-        self.assertTrue(t2 == t2)
-
-        # Equal afer adjustment.
-        t1 = self.theclass(1, 12, 31, 23, 59, tzinfo=FixedOffset(1, ""))
-        t2 = self.theclass(2, 1, 1, 3, 13, tzinfo=FixedOffset(3*60+13+2, ""))
-        self.assertEqual(t1, t2)
-
-        # Change t1 not to subtract a minute, and t1 should be larger.
-        t1 = self.theclass(1, 12, 31, 23, 59, tzinfo=FixedOffset(0, ""))
-        self.assertTrue(t1 > t2)
-
-        # Change t1 to subtract 2 minutes, and t1 should be smaller.
-        t1 = self.theclass(1, 12, 31, 23, 59, tzinfo=FixedOffset(2, ""))
-        self.assertTrue(t1 < t2)
-
-        # Back to the original t1, but make seconds resolve it.
-        t1 = self.theclass(1, 12, 31, 23, 59, tzinfo=FixedOffset(1, ""),
-                           second=1)
-        self.assertTrue(t1 > t2)
-
-        # Likewise, but make microseconds resolve it.
-        t1 = self.theclass(1, 12, 31, 23, 59, tzinfo=FixedOffset(1, ""),
-                           microsecond=1)
-        self.assertTrue(t1 > t2)
-
-        # Make t2 naive and it should fail.
-        t2 = self.theclass.min
-        self.assertRaises(TypeError, lambda: t1 == t2)
-        self.assertEqual(t2, t2)
-
-        # It's also naive if it has tzinfo but tzinfo.utcoffset() is None.
-        class Naive(tzinfo):
-            def utcoffset(self, dt): return None
-        t2 = self.theclass(5, 6, 7, tzinfo=Naive())
-        self.assertRaises(TypeError, lambda: t1 == t2)
-        self.assertEqual(t2, t2)
-
-        # OTOH, it's OK to compare two of these mixing the two ways of being
-        # naive.
-        t1 = self.theclass(5, 6, 7)
-        self.assertEqual(t1, t2)
-
-        # Try a bogus uctoffset.
-        class Bogus(tzinfo):
-            def utcoffset(self, dt):
-                return timedelta(minutes=1440) # out of bounds
-        t1 = self.theclass(2, 2, 2, tzinfo=Bogus())
-        t2 = self.theclass(2, 2, 2, tzinfo=FixedOffset(0, ""))
-        self.assertRaises(ValueError, lambda: t1 == t2)
-
-    def test_pickling(self):
-        # Try one without a tzinfo.
-        args = 6, 7, 23, 20, 59, 1, 64**2
-        orig = self.theclass(*args)
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-
-        # Try one with a tzinfo.
-        tinfo = PicklableFixedOffset(-300, 'cookie')
-        orig = self.theclass(*args, **{'tzinfo': tinfo})
-        derived = self.theclass(1, 1, 1, tzinfo=FixedOffset(0, "", 0))
-        for pickler, unpickler, proto in pickle_choices:
-            green = pickler.dumps(orig, proto)
-            derived = unpickler.loads(green)
-            self.assertEqual(orig, derived)
-            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
-            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
-            self.assertEqual(derived.tzname(), 'cookie')
-
-    def test_extreme_hashes(self):
-        # If an attempt is made to hash these via subtracting the offset
-        # then hashing a datetime object, OverflowError results.  The
-        # Python implementation used to blow up here.
-        t = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, ""))
-        hash(t)
-        t = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999,
-                          tzinfo=FixedOffset(-1439, ""))
-        hash(t)
-
-        # OTOH, an OOB offset should blow up.
-        t = self.theclass(5, 5, 5, tzinfo=FixedOffset(-1440, ""))
-        self.assertRaises(ValueError, hash, t)
-
-    def test_zones(self):
-        est = FixedOffset(-300, "EST")
-        utc = FixedOffset(0, "UTC")
-        met = FixedOffset(60, "MET")
-        t1 = datetime(2002, 3, 19,  7, 47, tzinfo=est)
-        t2 = datetime(2002, 3, 19, 12, 47, tzinfo=utc)
-        t3 = datetime(2002, 3, 19, 13, 47, tzinfo=met)
-        self.assertEqual(t1.tzinfo, est)
-        self.assertEqual(t2.tzinfo, utc)
-        self.assertEqual(t3.tzinfo, met)
-        self.assertEqual(t1.utcoffset(), timedelta(minutes=-300))
-        self.assertEqual(t2.utcoffset(), timedelta(minutes=0))
-        self.assertEqual(t3.utcoffset(), timedelta(minutes=60))
-        self.assertEqual(t1.tzname(), "EST")
-        self.assertEqual(t2.tzname(), "UTC")
-        self.assertEqual(t3.tzname(), "MET")
-        self.assertEqual(hash(t1), hash(t2))
-        self.assertEqual(hash(t1), hash(t3))
-        self.assertEqual(hash(t2), hash(t3))
-        self.assertEqual(t1, t2)
-        self.assertEqual(t1, t3)
-        self.assertEqual(t2, t3)
-        self.assertEqual(str(t1), "2002-03-19 07:47:00-05:00")
-        self.assertEqual(str(t2), "2002-03-19 12:47:00+00:00")
-        self.assertEqual(str(t3), "2002-03-19 13:47:00+01:00")
-        d = 'datetime.datetime(2002, 3, 19, '
-        self.assertEqual(repr(t1), d + "7, 47, tzinfo=est)")
-        self.assertEqual(repr(t2), d + "12, 47, tzinfo=utc)")
-        self.assertEqual(repr(t3), d + "13, 47, tzinfo=met)")
-
-    def test_combine(self):
-        met = FixedOffset(60, "MET")
-        d = date(2002, 3, 4)
-        tz = time(18, 45, 3, 1234, tzinfo=met)
-        dt = datetime.combine(d, tz)
-        self.assertEqual(dt, datetime(2002, 3, 4, 18, 45, 3, 1234,
-                                        tzinfo=met))
-
-    def test_extract(self):
-        met = FixedOffset(60, "MET")
-        dt = self.theclass(2002, 3, 4, 18, 45, 3, 1234, tzinfo=met)
-        self.assertEqual(dt.date(), date(2002, 3, 4))
-        self.assertEqual(dt.time(), time(18, 45, 3, 1234))
-        self.assertEqual(dt.timetz(), time(18, 45, 3, 1234, tzinfo=met))
-
-    def test_tz_aware_arithmetic(self):
-        import random
-
-        now = self.theclass.now()
-        tz55 = FixedOffset(-330, "west 5:30")
-        timeaware = now.time().replace(tzinfo=tz55)
-        nowaware = self.theclass.combine(now.date(), timeaware)
-        self.assertTrue(nowaware.tzinfo is tz55)
-        self.assertEqual(nowaware.timetz(), timeaware)
-
-        # Can't mix aware and non-aware.
-        self.assertRaises(TypeError, lambda: now - nowaware)
-        self.assertRaises(TypeError, lambda: nowaware - now)
-
-        # And adding datetime's doesn't make sense, aware or not.
-        self.assertRaises(TypeError, lambda: now + nowaware)
-        self.assertRaises(TypeError, lambda: nowaware + now)
-        self.assertRaises(TypeError, lambda: nowaware + nowaware)
-
-        # Subtracting should yield 0.
-        self.assertEqual(now - now, timedelta(0))
-        self.assertEqual(nowaware - nowaware, timedelta(0))
-
-        # Adding a delta should preserve tzinfo.
-        delta = timedelta(weeks=1, minutes=12, microseconds=5678)
-        nowawareplus = nowaware + delta
-        self.assertTrue(nowaware.tzinfo is tz55)
-        nowawareplus2 = delta + nowaware
-        self.assertTrue(nowawareplus2.tzinfo is tz55)
-        self.assertEqual(nowawareplus, nowawareplus2)
-
-        # that - delta should be what we started with, and that - what we
-        # started with should be delta.
-        diff = nowawareplus - delta
-        self.assertTrue(diff.tzinfo is tz55)
-        self.assertEqual(nowaware, diff)
-        self.assertRaises(TypeError, lambda: delta - nowawareplus)
-        self.assertEqual(nowawareplus - nowaware, delta)
-
-        # Make up a random timezone.
-        tzr = FixedOffset(random.randrange(-1439, 1440), "randomtimezone")
-        # Attach it to nowawareplus.
-        nowawareplus = nowawareplus.replace(tzinfo=tzr)
-        self.assertTrue(nowawareplus.tzinfo is tzr)
-        # Make sure the difference takes the timezone adjustments into account.
-        got = nowaware - nowawareplus
-        # Expected:  (nowaware base - nowaware offset) -
-        #            (nowawareplus base - nowawareplus offset) =
-        #            (nowaware base - nowawareplus base) +
-        #            (nowawareplus offset - nowaware offset) =
-        #            -delta + nowawareplus offset - nowaware offset
-        expected = nowawareplus.utcoffset() - nowaware.utcoffset() - delta
-        self.assertEqual(got, expected)
-
-        # Try max possible difference.
-        min = self.theclass(1, 1, 1, tzinfo=FixedOffset(1439, "min"))
-        max = self.theclass(MAXYEAR, 12, 31, 23, 59, 59, 999999,
-                            tzinfo=FixedOffset(-1439, "max"))
-        maxdiff = max - min
-        self.assertEqual(maxdiff, self.theclass.max - self.theclass.min +
-                                  timedelta(minutes=2*1439))
-
-    def test_tzinfo_now(self):
-        meth = self.theclass.now
-        # Ensure it doesn't require tzinfo (i.e., that this doesn't blow up).
-        base = meth()
-        # Try with and without naming the keyword.
-        off42 = FixedOffset(42, "42")
-        another = meth(off42)
-        again = meth(tz=off42)
-        self.assertTrue(another.tzinfo is again.tzinfo)
-        self.assertEqual(another.utcoffset(), timedelta(minutes=42))
-        # Bad argument with and w/o naming the keyword.
-        self.assertRaises(TypeError, meth, 16)
-        self.assertRaises(TypeError, meth, tzinfo=16)
-        # Bad keyword name.
-        self.assertRaises(TypeError, meth, tinfo=off42)
-        # Too many args.
-        self.assertRaises(TypeError, meth, off42, off42)
-
-        # We don't know which time zone we're in, and don't have a tzinfo
-        # class to represent it, so seeing whether a tz argument actually
-        # does a conversion is tricky.
-        weirdtz = FixedOffset(timedelta(hours=15, minutes=58), "weirdtz", 0)
-        utc = FixedOffset(0, "utc", 0)
-        for dummy in range(3):
-            now = datetime.now(weirdtz)
-            self.assertTrue(now.tzinfo is weirdtz)
-            utcnow = datetime.utcnow().replace(tzinfo=utc)
-            now2 = utcnow.astimezone(weirdtz)
-            if abs(now - now2) < timedelta(seconds=30):
-                break
-            # Else the code is broken, or more than 30 seconds passed between
-            # calls; assuming the latter, just try again.
-        else:
-            # Three strikes and we're out.
-            self.fail("utcnow(), now(tz), or astimezone() may be broken")
-
-    def test_tzinfo_fromtimestamp(self):
-        import time
-        meth = self.theclass.fromtimestamp
-        ts = time.time()
-        # Ensure it doesn't require tzinfo (i.e., that this doesn't blow up).
-        base = meth(ts)
-        # Try with and without naming the keyword.
-        off42 = FixedOffset(42, "42")
-        another = meth(ts, off42)
-        again = meth(ts, tz=off42)
-        self.assertTrue(another.tzinfo is again.tzinfo)
-        self.assertEqual(another.utcoffset(), timedelta(minutes=42))
-        # Bad argument with and w/o naming the keyword.
-        self.assertRaises(TypeError, meth, ts, 16)
-        self.assertRaises(TypeError, meth, ts, tzinfo=16)
-        # Bad keyword name.
-        self.assertRaises(TypeError, meth, ts, tinfo=off42)
-        # Too many args.
-        self.assertRaises(TypeError, meth, ts, off42, off42)
-        # Too few args.
-        self.assertRaises(TypeError, meth)
-
-        # Try to make sure tz= actually does some conversion.
-        timestamp = 1000000000
-        utcdatetime = datetime.utcfromtimestamp(timestamp)
-        # In POSIX (epoch 1970), that's 2001-09-09 01:46:40 UTC, give or take.
-        # But on some flavor of Mac, it's nowhere near that.  So we can't have
-        # any idea here what time that actually is, we can only test that
-        # relative changes match.
-        utcoffset = timedelta(hours=-15, minutes=39) # arbitrary, but not zero
-        tz = FixedOffset(utcoffset, "tz", 0)
-        expected = utcdatetime + utcoffset
-        got = datetime.fromtimestamp(timestamp, tz)
-        self.assertEqual(expected, got.replace(tzinfo=None))
-
-    def test_tzinfo_utcnow(self):
-        meth = self.theclass.utcnow
-        # Ensure it doesn't require tzinfo (i.e., that this doesn't blow up).
-        base = meth()
-        # Try with and without naming the keyword; for whatever reason,
-        # utcnow() doesn't accept a tzinfo argument.
-        off42 = FixedOffset(42, "42")
-        self.assertRaises(TypeError, meth, off42)
-        self.assertRaises(TypeError, meth, tzinfo=off42)
-
-    def test_tzinfo_utcfromtimestamp(self):
-        import time
-        meth = self.theclass.utcfromtimestamp
-        ts = time.time()
-        # Ensure it doesn't require tzinfo (i.e., that this doesn't blow up).
-        base = meth(ts)
-        # Try with and without naming the keyword; for whatever reason,
-        # utcfromtimestamp() doesn't accept a tzinfo argument.
-        off42 = FixedOffset(42, "42")
-        self.assertRaises(TypeError, meth, ts, off42)
-        self.assertRaises(TypeError, meth, ts, tzinfo=off42)
-
-    def test_tzinfo_timetuple(self):
-        # TestDateTime tested most of this.  datetime adds a twist to the
-        # DST flag.
-        class DST(tzinfo):
-            def __init__(self, dstvalue):
-                if isinstance(dstvalue, int):
-                    dstvalue = timedelta(minutes=dstvalue)
-                self.dstvalue = dstvalue
-            def dst(self, dt):
-                return self.dstvalue
-
-        cls = self.theclass
-        for dstvalue, flag in (-33, 1), (33, 1), (0, 0), (None, -1):
-            d = cls(1, 1, 1, 10, 20, 30, 40, tzinfo=DST(dstvalue))
-            t = d.timetuple()
-            self.assertEqual(1, t.tm_year)
-            self.assertEqual(1, t.tm_mon)
-            self.assertEqual(1, t.tm_mday)
-            self.assertEqual(10, t.tm_hour)
-            self.assertEqual(20, t.tm_min)
-            self.assertEqual(30, t.tm_sec)
-            self.assertEqual(0, t.tm_wday)
-            self.assertEqual(1, t.tm_yday)
-            self.assertEqual(flag, t.tm_isdst)
-
-        # dst() returns wrong type.
-        self.assertRaises(TypeError, cls(1, 1, 1, tzinfo=DST("x")).timetuple)
-
-        # dst() at the edge.
-        self.assertEqual(cls(1,1,1, tzinfo=DST(1439)).timetuple().tm_isdst, 1)
-        self.assertEqual(cls(1,1,1, tzinfo=DST(-1439)).timetuple().tm_isdst, 1)
-
-        # dst() out of range.
-        self.assertRaises(ValueError, cls(1,1,1, tzinfo=DST(1440)).timetuple)
-        self.assertRaises(ValueError, cls(1,1,1, tzinfo=DST(-1440)).timetuple)
-
-    def test_utctimetuple(self):
-        class DST(tzinfo):
-            def __init__(self, dstvalue):
-                if isinstance(dstvalue, int):
-                    dstvalue = timedelta(minutes=dstvalue)
-                self.dstvalue = dstvalue
-            def dst(self, dt):
-                return self.dstvalue
-
-        cls = self.theclass
-        # This can't work:  DST didn't implement utcoffset.
-        self.assertRaises(NotImplementedError,
-                          cls(1, 1, 1, tzinfo=DST(0)).utcoffset)
-
-        class UOFS(DST):
-            def __init__(self, uofs, dofs=None):
-                DST.__init__(self, dofs)
-                self.uofs = timedelta(minutes=uofs)
-            def utcoffset(self, dt):
-                return self.uofs
-
-        # Ensure tm_isdst is 0 regardless of what dst() says:  DST is never
-        # in effect for a UTC time.
-        for dstvalue in -33, 33, 0, None:
-            d = cls(1, 2, 3, 10, 20, 30, 40, tzinfo=UOFS(-53, dstvalue))
-            t = d.utctimetuple()
-            self.assertEqual(d.year, t.tm_year)
-            self.assertEqual(d.month, t.tm_mon)
-            self.assertEqual(d.day, t.tm_mday)
-            self.assertEqual(11, t.tm_hour) # 20mm + 53mm = 1hn + 13mm
-            self.assertEqual(13, t.tm_min)
-            self.assertEqual(d.second, t.tm_sec)
-            self.assertEqual(d.weekday(), t.tm_wday)
-            self.assertEqual(d.toordinal() - date(1, 1, 1).toordinal() + 1,
-                             t.tm_yday)
-            self.assertEqual(0, t.tm_isdst)
-
-        # At the edges, UTC adjustment can normalize into years out-of-range
-        # for a datetime object.  Ensure that a correct timetuple is
-        # created anyway.
-        tiny = cls(MINYEAR, 1, 1, 0, 0, 37, tzinfo=UOFS(1439))
-        # That goes back 1 minute less than a full day.
-        t = tiny.utctimetuple()
-        self.assertEqual(t.tm_year, MINYEAR-1)
-        self.assertEqual(t.tm_mon, 12)
-        self.assertEqual(t.tm_mday, 31)
-        self.assertEqual(t.tm_hour, 0)
-        self.assertEqual(t.tm_min, 1)
-        self.assertEqual(t.tm_sec, 37)
-        self.assertEqual(t.tm_yday, 366)    # "year 0" is a leap year
-        self.assertEqual(t.tm_isdst, 0)
-
-        huge = cls(MAXYEAR, 12, 31, 23, 59, 37, 999999, tzinfo=UOFS(-1439))
-        # That goes forward 1 minute less than a full day.
-        t = huge.utctimetuple()
-        self.assertEqual(t.tm_year, MAXYEAR+1)
-        self.assertEqual(t.tm_mon, 1)
-        self.assertEqual(t.tm_mday, 1)
-        self.assertEqual(t.tm_hour, 23)
-        self.assertEqual(t.tm_min, 58)
-        self.assertEqual(t.tm_sec, 37)
-        self.assertEqual(t.tm_yday, 1)
-        self.assertEqual(t.tm_isdst, 0)
-
-    def test_tzinfo_isoformat(self):
-        zero = FixedOffset(0, "+00:00")
-        plus = FixedOffset(220, "+03:40")
-        minus = FixedOffset(-231, "-03:51")
-        unknown = FixedOffset(None, "")
-
-        cls = self.theclass
-        datestr = '0001-02-03'
-        for ofs in None, zero, plus, minus, unknown:
-            for us in 0, 987001:
-                d = cls(1, 2, 3, 4, 5, 59, us, tzinfo=ofs)
-                timestr = '04:05:59' + (us and '.987001' or '')
-                ofsstr = ofs is not None and d.tzname() or ''
-                tailstr = timestr + ofsstr
-                iso = d.isoformat()
-                self.assertEqual(iso, datestr + 'T' + tailstr)
-                self.assertEqual(iso, d.isoformat('T'))
-                self.assertEqual(d.isoformat('k'), datestr + 'k' + tailstr)
-                self.assertEqual(str(d), datestr + ' ' + tailstr)
-
-    def test_replace(self):
-        cls = self.theclass
-        z100 = FixedOffset(100, "+100")
-        zm200 = FixedOffset(timedelta(minutes=-200), "-200")
-        args = [1, 2, 3, 4, 5, 6, 7, z100]
-        base = cls(*args)
-        self.assertEqual(base, base.replace())
-
-        i = 0
-        for name, newval in (("year", 2),
-                             ("month", 3),
-                             ("day", 4),
-                             ("hour", 5),
-                             ("minute", 6),
-                             ("second", 7),
-                             ("microsecond", 8),
-                             ("tzinfo", zm200)):
-            newargs = args[:]
-            newargs[i] = newval
-            expected = cls(*newargs)
-            got = base.replace(**{name: newval})
-            self.assertEqual(expected, got)
-            i += 1
-
-        # Ensure we can get rid of a tzinfo.
-        self.assertEqual(base.tzname(), "+100")
-        base2 = base.replace(tzinfo=None)
-        self.assertTrue(base2.tzinfo is None)
-        self.assertTrue(base2.tzname() is None)
-
-        # Ensure we can add one.
-        base3 = base2.replace(tzinfo=z100)
-        self.assertEqual(base, base3)
-        self.assertTrue(base.tzinfo is base3.tzinfo)
-
-        # Out of bounds.
-        base = cls(2000, 2, 29)
-        self.assertRaises(ValueError, base.replace, year=2001)
-
-    def test_more_astimezone(self):
-        # The inherited test_astimezone covered some trivial and error cases.
-        fnone = FixedOffset(None, "None")
-        f44m = FixedOffset(44, "44")
-        fm5h = FixedOffset(-timedelta(hours=5), "m300")
-
-        dt = self.theclass.now(tz=f44m)
-        self.assertTrue(dt.tzinfo is f44m)
-        # Replacing with degenerate tzinfo raises an exception.
-        self.assertRaises(ValueError, dt.astimezone, fnone)
-        # Ditto with None tz.
-        self.assertRaises(TypeError, dt.astimezone, None)
-        # Replacing with same tzinfo makes no change.
-        x = dt.astimezone(dt.tzinfo)
-        self.assertTrue(x.tzinfo is f44m)
-        self.assertEqual(x.date(), dt.date())
-        self.assertEqual(x.time(), dt.time())
-
-        # Replacing with different tzinfo does adjust.
-        got = dt.astimezone(fm5h)
-        self.assertTrue(got.tzinfo is fm5h)
-        self.assertEqual(got.utcoffset(), timedelta(hours=-5))
-        expected = dt - dt.utcoffset()  # in effect, convert to UTC
-        expected += fm5h.utcoffset(dt)  # and from there to local time
-        expected = expected.replace(tzinfo=fm5h) # and attach new tzinfo
-        self.assertEqual(got.date(), expected.date())
-        self.assertEqual(got.time(), expected.time())
-        self.assertEqual(got.timetz(), expected.timetz())
-        self.assertTrue(got.tzinfo is expected.tzinfo)
-        self.assertEqual(got, expected)
-
-    def test_aware_subtract(self):
-        cls = self.theclass
-
-        # Ensure that utcoffset() is ignored when the operands have the
-        # same tzinfo member.
-        class OperandDependentOffset(tzinfo):
-            def utcoffset(self, t):
-                if t.minute < 10:
-                    # d0 and d1 equal after adjustment
-                    return timedelta(minutes=t.minute)
-                else:
-                    # d2 off in the weeds
-                    return timedelta(minutes=59)
-
-        base = cls(8, 9, 10, 11, 12, 13, 14, tzinfo=OperandDependentOffset())
-        d0 = base.replace(minute=3)
-        d1 = base.replace(minute=9)
-        d2 = base.replace(minute=11)
-        for x in d0, d1, d2:
-            for y in d0, d1, d2:
-                got = x - y
-                expected = timedelta(minutes=x.minute - y.minute)
-                self.assertEqual(got, expected)
-
-        # OTOH, if the tzinfo members are distinct, utcoffsets aren't
-        # ignored.
-        base = cls(8, 9, 10, 11, 12, 13, 14)
-        d0 = base.replace(minute=3, tzinfo=OperandDependentOffset())
-        d1 = base.replace(minute=9, tzinfo=OperandDependentOffset())
-        d2 = base.replace(minute=11, tzinfo=OperandDependentOffset())
-        for x in d0, d1, d2:
-            for y in d0, d1, d2:
-                got = x - y
-                if (x is d0 or x is d1) and (y is d0 or y is d1):
-                    expected = timedelta(0)
-                elif x is y is d2:
-                    expected = timedelta(0)
-                elif x is d2:
-                    expected = timedelta(minutes=(11-59)-0)
-                else:
-                    assert y is d2
-                    expected = timedelta(minutes=0-(11-59))
-                self.assertEqual(got, expected)
-
-    def test_mixed_compare(self):
-        t1 = datetime(1, 2, 3, 4, 5, 6, 7)
-        t2 = datetime(1, 2, 3, 4, 5, 6, 7)
-        self.assertEqual(t1, t2)
-        t2 = t2.replace(tzinfo=None)
-        self.assertEqual(t1, t2)
-        t2 = t2.replace(tzinfo=FixedOffset(None, ""))
-        self.assertEqual(t1, t2)
-        t2 = t2.replace(tzinfo=FixedOffset(0, ""))
-        self.assertRaises(TypeError, lambda: t1 == t2)
-
-        # In datetime w/ identical tzinfo objects, utcoffset is ignored.
-        class Varies(tzinfo):
-            def __init__(self):
-                self.offset = timedelta(minutes=22)
-            def utcoffset(self, t):
-                self.offset += timedelta(minutes=1)
-                return self.offset
-
-        v = Varies()
-        t1 = t2.replace(tzinfo=v)
-        t2 = t2.replace(tzinfo=v)
-        self.assertEqual(t1.utcoffset(), timedelta(minutes=23))
-        self.assertEqual(t2.utcoffset(), timedelta(minutes=24))
-        self.assertEqual(t1, t2)
-
-        # But if they're not identical, it isn't ignored.
-        t2 = t2.replace(tzinfo=Varies())
-        self.assertTrue(t1 < t2)  # t1's offset counter still going up
-
-    def test_subclass_datetimetz(self):
-
-        class C(self.theclass):
-            theAnswer = 42
-
-            def __new__(cls, *args, **kws):
-                temp = kws.copy()
-                extra = temp.pop('extra')
-                result = self.theclass.__new__(cls, *args, **temp)
-                result.extra = extra
-                return result
-
-            def newmeth(self, start):
-                return start + self.hour + self.year
-
-        args = 2002, 12, 31, 4, 5, 6, 500, FixedOffset(-300, "EST", 1)
-
-        dt1 = self.theclass(*args)
-        dt2 = C(*args, **{'extra': 7})
-
-        self.assertEqual(dt2.__class__, C)
-        self.assertEqual(dt2.theAnswer, 42)
-        self.assertEqual(dt2.extra, 7)
-        self.assertEqual(dt1.utcoffset(), dt2.utcoffset())
-        self.assertEqual(dt2.newmeth(-7), dt1.hour + dt1.year - 7)
-
-# Pain to set up DST-aware tzinfo classes.
-
-def first_sunday_on_or_after(dt):
-    days_to_go = 6 - dt.weekday()
-    if days_to_go:
-        dt += timedelta(days_to_go)
-    return dt
-
-ZERO = timedelta(0)
-HOUR = timedelta(hours=1)
-DAY = timedelta(days=1)
-# In the US, DST starts at 2am (standard time) on the first Sunday in April.
-DSTSTART = datetime(1, 4, 1, 2)
-# and ends at 2am (DST time; 1am standard time) on the last Sunday of Oct,
-# which is the first Sunday on or after Oct 25.  Because we view 1:MM as
-# being standard time on that day, there is no spelling in local time of
-# the last hour of DST (that's 1:MM DST, but 1:MM is taken as standard time).
-DSTEND = datetime(1, 10, 25, 1)
-
-class USTimeZone(tzinfo):
-
-    def __init__(self, hours, reprname, stdname, dstname):
-        self.stdoffset = timedelta(hours=hours)
-        self.reprname = reprname
-        self.stdname = stdname
-        self.dstname = dstname
-
-    def __repr__(self):
-        return self.reprname
-
-    def tzname(self, dt):
-        if self.dst(dt):
-            return self.dstname
-        else:
-            return self.stdname
-
-    def utcoffset(self, dt):
-        return self.stdoffset + self.dst(dt)
-
-    def dst(self, dt):
-        if dt is None or dt.tzinfo is None:
-            # An exception instead may be sensible here, in one or more of
-            # the cases.
-            return ZERO
-        assert dt.tzinfo is self
-
-        # Find first Sunday in April.
-        start = first_sunday_on_or_after(DSTSTART.replace(year=dt.year))
-        assert start.weekday() == 6 and start.month == 4 and start.day <= 7
-
-        # Find last Sunday in October.
-        end = first_sunday_on_or_after(DSTEND.replace(year=dt.year))
-        assert end.weekday() == 6 and end.month == 10 and end.day >= 25
-
-        # Can't compare naive to aware objects, so strip the timezone from
-        # dt first.
-        if start <= dt.replace(tzinfo=None) < end:
-            return HOUR
-        else:
-            return ZERO
-
-Eastern  = USTimeZone(-5, "Eastern",  "EST", "EDT")
-Central  = USTimeZone(-6, "Central",  "CST", "CDT")
-Mountain = USTimeZone(-7, "Mountain", "MST", "MDT")
-Pacific  = USTimeZone(-8, "Pacific",  "PST", "PDT")
-utc_real = FixedOffset(0, "UTC", 0)
-# For better test coverage, we want another flavor of UTC that's west of
-# the Eastern and Pacific timezones.
-utc_fake = FixedOffset(-12*60, "UTCfake", 0)
-
-class TestTimezoneConversions(unittest.TestCase):
-    # The DST switch times for 2002, in std time.
-    dston = datetime(2002, 4, 7, 2)
-    dstoff = datetime(2002, 10, 27, 1)
-
-    theclass = datetime
-
-    # Check a time that's inside DST.
-    def checkinside(self, dt, tz, utc, dston, dstoff):
-        self.assertEqual(dt.dst(), HOUR)
-
-        # Conversion to our own timezone is always an identity.
-        self.assertEqual(dt.astimezone(tz), dt)
-
-        asutc = dt.astimezone(utc)
-        there_and_back = asutc.astimezone(tz)
-
-        # Conversion to UTC and back isn't always an identity here,
-        # because there are redundant spellings (in local time) of
-        # UTC time when DST begins:  the clock jumps from 1:59:59
-        # to 3:00:00, and a local time of 2:MM:SS doesn't really
-        # make sense then.  The classes above treat 2:MM:SS as
-        # daylight time then (it's "after 2am"), really an alias
-        # for 1:MM:SS standard time.  The latter form is what
-        # conversion back from UTC produces.
-        if dt.date() == dston.date() and dt.hour == 2:
-            # We're in the redundant hour, and coming back from
-            # UTC gives the 1:MM:SS standard-time spelling.
-            self.assertEqual(there_and_back + HOUR, dt)
-            # Although during was considered to be in daylight
-            # time, there_and_back is not.
-            self.assertEqual(there_and_back.dst(), ZERO)
-            # They're the same times in UTC.
-            self.assertEqual(there_and_back.astimezone(utc),
-                             dt.astimezone(utc))
-        else:
-            # We're not in the redundant hour.
-            self.assertEqual(dt, there_and_back)
-
-        # Because we have a redundant spelling when DST begins, there is
-        # (unfortunately) an hour when DST ends that can't be spelled at all in
-        # local time.  When DST ends, the clock jumps from 1:59 back to 1:00
-        # again.  The hour 1:MM DST has no spelling then:  1:MM is taken to be
-        # standard time.  1:MM DST == 0:MM EST, but 0:MM is taken to be
-        # daylight time.  The hour 1:MM daylight == 0:MM standard can't be
-        # expressed in local time.  Nevertheless, we want conversion back
-        # from UTC to mimic the local clock's "repeat an hour" behavior.
-        nexthour_utc = asutc + HOUR
-        nexthour_tz = nexthour_utc.astimezone(tz)
-        if dt.date() == dstoff.date() and dt.hour == 0:
-            # We're in the hour before the last DST hour.  The last DST hour
-            # is ineffable.  We want the conversion back to repeat 1:MM.
-            self.assertEqual(nexthour_tz, dt.replace(hour=1))
-            nexthour_utc += HOUR
-            nexthour_tz = nexthour_utc.astimezone(tz)
-            self.assertEqual(nexthour_tz, dt.replace(hour=1))
-        else:
-            self.assertEqual(nexthour_tz - dt, HOUR)
-
-    # Check a time that's outside DST.
-    def checkoutside(self, dt, tz, utc):
-        self.assertEqual(dt.dst(), ZERO)
-
-        # Conversion to our own timezone is always an identity.
-        self.assertEqual(dt.astimezone(tz), dt)
-
-        # Converting to UTC and back is an identity too.
-        asutc = dt.astimezone(utc)
-        there_and_back = asutc.astimezone(tz)
-        self.assertEqual(dt, there_and_back)
-
-    def convert_between_tz_and_utc(self, tz, utc):
-        dston = self.dston.replace(tzinfo=tz)
-        # Because 1:MM on the day DST ends is taken as being standard time,
-        # there is no spelling in tz for the last hour of daylight time.
-        # For purposes of the test, the last hour of DST is 0:MM, which is
-        # taken as being daylight time (and 1:MM is taken as being standard
-        # time).
-        dstoff = self.dstoff.replace(tzinfo=tz)
-        for delta in (timedelta(weeks=13),
-                      DAY,
-                      HOUR,
-                      timedelta(minutes=1),
-                      timedelta(microseconds=1)):
-
-            self.checkinside(dston, tz, utc, dston, dstoff)
-            for during in dston + delta, dstoff - delta:
-                self.checkinside(during, tz, utc, dston, dstoff)
-
-            self.checkoutside(dstoff, tz, utc)
-            for outside in dston - delta, dstoff + delta:
-                self.checkoutside(outside, tz, utc)
-
-    def test_easy(self):
-        # Despite the name of this test, the endcases are excruciating.
-        self.convert_between_tz_and_utc(Eastern, utc_real)
-        self.convert_between_tz_and_utc(Pacific, utc_real)
-        self.convert_between_tz_and_utc(Eastern, utc_fake)
-        self.convert_between_tz_and_utc(Pacific, utc_fake)
-        # The next is really dancing near the edge.  It works because
-        # Pacific and Eastern are far enough apart that their "problem
-        # hours" don't overlap.
-        self.convert_between_tz_and_utc(Eastern, Pacific)
-        self.convert_between_tz_and_utc(Pacific, Eastern)
-        # OTOH, these fail!  Don't enable them.  The difficulty is that
-        # the edge case tests assume that every hour is representable in
-        # the "utc" class.  This is always true for a fixed-offset tzinfo
-        # class (lke utc_real and utc_fake), but not for Eastern or Central.
-        # For these adjacent DST-aware time zones, the range of time offsets
-        # tested ends up creating hours in the one that aren't representable
-        # in the other.  For the same reason, we would see failures in the
-        # Eastern vs Pacific tests too if we added 3*HOUR to the list of
-        # offset deltas in convert_between_tz_and_utc().
-        #
-        # self.convert_between_tz_and_utc(Eastern, Central)  # can't work
-        # self.convert_between_tz_and_utc(Central, Eastern)  # can't work
-
-    def test_tricky(self):
-        # 22:00 on day before daylight starts.
-        fourback = self.dston - timedelta(hours=4)
-        ninewest = FixedOffset(-9*60, "-0900", 0)
-        fourback = fourback.replace(tzinfo=ninewest)
-        # 22:00-0900 is 7:00 UTC == 2:00 EST == 3:00 DST.  Since it's "after
-        # 2", we should get the 3 spelling.
-        # If we plug 22:00 the day before into Eastern, it "looks like std
-        # time", so its offset is returned as -5, and -5 - -9 = 4.  Adding 4
-        # to 22:00 lands on 2:00, which makes no sense in local time (the
-        # local clock jumps from 1 to 3).  The point here is to make sure we
-        # get the 3 spelling.
-        expected = self.dston.replace(hour=3)
-        got = fourback.astimezone(Eastern).replace(tzinfo=None)
-        self.assertEqual(expected, got)
-
-        # Similar, but map to 6:00 UTC == 1:00 EST == 2:00 DST.  In that
-        # case we want the 1:00 spelling.
-        sixutc = self.dston.replace(hour=6, tzinfo=utc_real)
-        # Now 6:00 "looks like daylight", so the offset wrt Eastern is -4,
-        # and adding -4-0 == -4 gives the 2:00 spelling.  We want the 1:00 EST
-        # spelling.
-        expected = self.dston.replace(hour=1)
-        got = sixutc.astimezone(Eastern).replace(tzinfo=None)
-        self.assertEqual(expected, got)
-
-        # Now on the day DST ends, we want "repeat an hour" behavior.
-        #  UTC  4:MM  5:MM  6:MM  7:MM  checking these
-        #  EST 23:MM  0:MM  1:MM  2:MM
-        #  EDT  0:MM  1:MM  2:MM  3:MM
-        # wall  0:MM  1:MM  1:MM  2:MM  against these
-        for utc in utc_real, utc_fake:
-            for tz in Eastern, Pacific:
-                first_std_hour = self.dstoff - timedelta(hours=2) # 23:MM
-                # Convert that to UTC.
-                first_std_hour -= tz.utcoffset(None)
-                # Adjust for possibly fake UTC.
-                asutc = first_std_hour + utc.utcoffset(None)
-                # First UTC hour to convert; this is 4:00 when utc=utc_real &
-                # tz=Eastern.
-                asutcbase = asutc.replace(tzinfo=utc)
-                for tzhour in (0, 1, 1, 2):
-                    expectedbase = self.dstoff.replace(hour=tzhour)
-                    for minute in 0, 30, 59:
-                        expected = expectedbase.replace(minute=minute)
-                        asutc = asutcbase.replace(minute=minute)
-                        astz = asutc.astimezone(tz)
-                        self.assertEqual(astz.replace(tzinfo=None), expected)
-                    asutcbase += HOUR
-
-
-    def test_bogus_dst(self):
-        class ok(tzinfo):
-            def utcoffset(self, dt): return HOUR
-            def dst(self, dt): return HOUR
-
-        now = self.theclass.now().replace(tzinfo=utc_real)
-        # Doesn't blow up.
-        now.astimezone(ok())
-
-        # Does blow up.
-        class notok(ok):
-            def dst(self, dt): return None
-        self.assertRaises(ValueError, now.astimezone, notok())
-
-    def test_fromutc(self):
-        self.assertRaises(TypeError, Eastern.fromutc)   # not enough args
-        now = datetime.utcnow().replace(tzinfo=utc_real)
-        self.assertRaises(ValueError, Eastern.fromutc, now) # wrong tzinfo
-        now = now.replace(tzinfo=Eastern)   # insert correct tzinfo
-        enow = Eastern.fromutc(now)         # doesn't blow up
-        self.assertEqual(enow.tzinfo, Eastern) # has right tzinfo member
-        self.assertRaises(TypeError, Eastern.fromutc, now, now) # too many args
-        self.assertRaises(TypeError, Eastern.fromutc, date.today()) # wrong type
-
-        # Always converts UTC to standard time.
-        class FauxUSTimeZone(USTimeZone):
-            def fromutc(self, dt):
-                return dt + self.stdoffset
-        FEastern  = FauxUSTimeZone(-5, "FEastern",  "FEST", "FEDT")
-
-        #  UTC  4:MM  5:MM  6:MM  7:MM  8:MM  9:MM
-        #  EST 23:MM  0:MM  1:MM  2:MM  3:MM  4:MM
-        #  EDT  0:MM  1:MM  2:MM  3:MM  4:MM  5:MM
-
-        # Check around DST start.
-        start = self.dston.replace(hour=4, tzinfo=Eastern)
-        fstart = start.replace(tzinfo=FEastern)
-        for wall in 23, 0, 1, 3, 4, 5:
-            expected = start.replace(hour=wall)
-            if wall == 23:
-                expected -= timedelta(days=1)
-            got = Eastern.fromutc(start)
-            self.assertEqual(expected, got)
-
-            expected = fstart + FEastern.stdoffset
-            got = FEastern.fromutc(fstart)
-            self.assertEqual(expected, got)
-
-            # Ensure astimezone() calls fromutc() too.
-            got = fstart.replace(tzinfo=utc_real).astimezone(FEastern)
-            self.assertEqual(expected, got)
-
-            start += HOUR
-            fstart += HOUR
-
-        # Check around DST end.
-        start = self.dstoff.replace(hour=4, tzinfo=Eastern)
-        fstart = start.replace(tzinfo=FEastern)
-        for wall in 0, 1, 1, 2, 3, 4:
-            expected = start.replace(hour=wall)
-            got = Eastern.fromutc(start)
-            self.assertEqual(expected, got)
-
-            expected = fstart + FEastern.stdoffset
-            got = FEastern.fromutc(fstart)
-            self.assertEqual(expected, got)
-
-            # Ensure astimezone() calls fromutc() too.
-            got = fstart.replace(tzinfo=utc_real).astimezone(FEastern)
-            self.assertEqual(expected, got)
-
-            start += HOUR
-            fstart += HOUR
-
-
-#############################################################################
-# oddballs
-
-class Oddballs(unittest.TestCase):
-
-    def test_bug_1028306(self):
-        # Trying to compare a date to a datetime should act like a mixed-
-        # type comparison, despite that datetime is a subclass of date.
-        as_date = date.today()
-        as_datetime = datetime.combine(as_date, time())
-        self.assertTrue(as_date != as_datetime)
-        self.assertTrue(as_datetime != as_date)
-        self.assertTrue(not as_date == as_datetime)
-        self.assertTrue(not as_datetime == as_date)
-        self.assertRaises(TypeError, lambda: as_date < as_datetime)
-        self.assertRaises(TypeError, lambda: as_datetime < as_date)
-        self.assertRaises(TypeError, lambda: as_date <= as_datetime)
-        self.assertRaises(TypeError, lambda: as_datetime <= as_date)
-        self.assertRaises(TypeError, lambda: as_date > as_datetime)
-        self.assertRaises(TypeError, lambda: as_datetime > as_date)
-        self.assertRaises(TypeError, lambda: as_date >= as_datetime)
-        self.assertRaises(TypeError, lambda: as_datetime >= as_date)
-
-        # Neverthelss, comparison should work with the base-class (date)
-        # projection if use of a date method is forced.
-        self.assertTrue(as_date.__eq__(as_datetime))
-        different_day = (as_date.day + 1) % 20 + 1
-        self.assertTrue(not as_date.__eq__(as_datetime.replace(day=
-                                                     different_day)))
-
-        # And date should compare with other subclasses of date.  If a
-        # subclass wants to stop this, it's up to the subclass to do so.
-        date_sc = SubclassDate(as_date.year, as_date.month, as_date.day)
-        self.assertEqual(as_date, date_sc)
-        self.assertEqual(date_sc, as_date)
-
-        # Ditto for datetimes.
-        datetime_sc = SubclassDatetime(as_datetime.year, as_datetime.month,
-                                       as_date.day, 0, 0, 0)
-        self.assertEqual(as_datetime, datetime_sc)
-        self.assertEqual(datetime_sc, as_datetime)
-
-def test_main():
-    test_support.run_unittest(__name__)
-
-if __name__ == "__main__":
-    test_main()

-- 
Repository URL: https://hg.python.org/jython


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