[SciPy-User] Scikits.timeseries, bug converting list to DateArray
Robert Ferrell
ferrell at diablotech.com
Mon Dec 28 00:00:32 EST 2009
I've encountered a possible bug converting a list of datetime numbers
to a DateArray. What's odd is I'm pretty sure this worked until
recently, but I don't recall changing anything on my system. So,
before I file a bug report, maybe somebody can confirm this is a
timeseries problem and not my own install problem. I'm on OS X 10.6,
Python 2.6.1, numpy 1.4.0.dev7542, timeseries 0.91.3.
In [1]: import scikits.timeseries as ts
In [2]: x = [731694.0]
In [3]: [ts.Date('d', dt) for dt in x]
Out[3]: [<D : 23-Apr-2004>]
In [4]: ts.date_array([ts.Date('d', y) for y in x])
Out[4]:
DateArray([23-Apr-2004],
freq='D')
That all works fine. But, if I hand x to date_array as the dlist
argument, I get a date_array, but I can't print it.
In [11]: y = ts.date_array(dlist=x, freq='d')
In [13]: type(y)
Out[13]: <class 'scikits.timeseries.tdates.DateArray'>
In [14]: y
Out[14]:
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
/Users/Shared/Develop/Financial/Lakshmi/<ipython console> in <module>()
/Library/Python/2.6/site-packages/IPython/Prompts.pyc in
__call__(self, arg)
550
551 # and now call a possibly user-defined print
mechanism
--> 552 manipulated_val = self.display(arg)
553
554 # user display hooks can change the variable to
be stored in
/Library/Python/2.6/site-packages/IPython/Prompts.pyc in
_display(self, arg)
576 return IPython.generics.result_display(arg)
577 except TryNext:
--> 578 return self.shell.hooks.result_display(arg)
579
580 # Assign the default display method:
/Library/Python/2.6/site-packages/IPython/hooks.pyc in __call__(self,
*args, **kw)
139 #print "prio",prio,"cmd",cmd #dbg
140 try:
--> 141 ret = cmd(*args, **kw)
142 return ret
143 except ipapi.TryNext, exc:
/Library/Python/2.6/site-packages/IPython/hooks.pyc in
result_display(self, arg)
169
170 if self.rc.pprint:
--> 171 out = pformat(arg)
172 if '\n' in out:
173 # So that multi-line strings line up with the
left column of
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/
pprint.pyc in pformat(self, object)
109 def pformat(self, object):
110 sio = _StringIO()
--> 111 self._format(object, sio, 0, 0, {}, 0)
112 return sio.getvalue()
113
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/
pprint.pyc in _format(self, object, stream, indent, allowance,
context, level)
127 self._readable = False
128 return
--> 129 rep = self._repr(object, context, level - 1)
130 typ = _type(object)
131 sepLines = _len(rep) > (self._width - 1 - indent -
allowance)
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/
pprint.pyc in _repr(self, object, context, level)
221 def _repr(self, object, context, level):
222 repr, readable, recursive = self.format(object,
context.copy(),
--> 223 self._depth,
level)
224 if not readable:
225 self._readable = False
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/
pprint.pyc in format(self, object, context, maxlevels, level)
233 and whether the object represents a recursive
construct.
234 """
--> 235 return _safe_repr(object, context, maxlevels, level)
236
237
/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/
pprint.pyc in _safe_repr(object, context, maxlevels, level)
318 return format % _commajoin(components), readable,
recursive
319
--> 320 rep = repr(object)
321 return rep, (rep and not rep.startswith('<')), False
322
/Library/Python/2.6/site-packages/scikits.timeseries-0.91.3-py2.6-
macosx-10.6-universal.egg/scikits/timeseries/tdates.pyc in
__repr__(self)
334
335 def __repr__(self):
--> 336 return ndarray.__repr__(self)[:-1] + \
337 ",\n freq='%s')" % self.freqstr
338
/Library/Python/2.6/site-packages/numpy-1.4.0.dev7542-py2.6-
macosx-10.6-universal.egg/numpy/core/numeric.pyc in array_repr(arr,
max_line_width, precision, suppress_small)
1334 if arr.size > 0 or arr.shape==(0,):
1335 lst = array2string(arr, max_line_width, precision,
suppress_small,
-> 1336 ', ', "array(")
1337 else: # show zero-length shape unless it is (0,)
1338 lst = "[], shape=%s" % (repr(arr.shape),)
/Library/Python/2.6/site-packages/numpy-1.4.0.dev7542-py2.6-
macosx-10.6-universal.egg/numpy/core/arrayprint.pyc in array2string(a,
max_line_width, precision, suppress_small, separator, prefix, style)
298 else:
299 lst = _array2string(a, max_line_width, precision,
suppress_small,
--> 300 separator, prefix)
301 return lst
302
/Library/Python/2.6/site-packages/numpy-1.4.0.dev7542-py2.6-
macosx-10.6-universal.egg/numpy/core/arrayprint.pyc in
_array2string(a, max_line_width, precision, suppress_small, separator,
prefix)
220 lst = _formatArray(a, format_function, len(a.shape),
max_line_width,
221 next_line_prefix, separator,
--> 222 _summaryEdgeItems, summary_insert)[:-1]
223
224 return lst
/Library/Python/2.6/site-packages/numpy-1.4.0.dev7542-py2.6-
macosx-10.6-universal.egg/numpy/core/arrayprint.pyc in _formatArray(a,
format_function, rank, max_line_len, next_line_prefix, separator,
edge_items, summary_insert)
344 s, line = _extendLine(s, line, word,
max_line_len, next_line_prefix)
345
--> 346 word = format_function(a[-1])
347 s, line = _extendLine(s, line, word, max_line_len,
next_line_prefix)
348 s += line + "]\n"
/Library/Python/2.6/site-packages/numpy-1.4.0.dev7542-py2.6-
macosx-10.6-universal.egg/numpy/core/arrayprint.pyc in __call__(self,
x, strip_zeros)
436
437 def __call__(self, x, strip_zeros=True):
--> 438 if isnan(x):
439 return self.special_fmt % (_nan_str,)
440 elif isinf(x):
TypeError: function not supported for these types, and can't coerce
safely to supported types
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