doctest import failure

[Tim Peters]

[j vickroy]
> The doctest module is not working on my installation.  Here is a sample
> session:
>
> D:\my-py-pkgs\generic-v2.0>python
> Python 2.2.1 (#34, Apr  9 2002, 19:34:33) [MSC 32 bit (Intel)] on win32
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import doctest
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
>   File "C:\Python22\lib\doctest.py", line 298, in ?
>     from inspect import classify_class_attrs as _classify_class_attrs
> ImportError: cannot import name classify_class_attrs
> >>>

Works fine here:

C:\Python22>python
Python 2.2.1 (#34, Apr  9 2002, 19:34:33) [MSC 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import doctest
>>>


> import inspect
> >>> dir(inspect)
> ['BlockFinder', 'CO_NEWLOCALS', 'CO_OPTIMIZED', 'CO_VARARGS',
> 'CO_VARKEYWORDS', 'EndOfBlock', 'ListReader', '__author__',
> '__builtins__',
> '__date__', '__doc__', '__file__', '__name__', 'currentframe', 'dis',
> 'findsource', 'formatargspec', 'formatargvalues', 'getabsfile', 'getargs',
> 'getargspec', 'getargvalues', 'getblock', 'getclasstree', 'getcomments',
> 'getdoc', 'getfile', 'getframeinfo', 'getinnerframes', 'getlineno',
> 'getmembers', 'getmodule', 'getmoduleinfo', 'getmodulename',
> 'getouterframes', 'getsource', 'getsourcefile', 'getsourcelines', 'imp',
> 'indentsize', 'isbuiltin', 'isclass', 'iscode', 'isframe', 'isfunction',
> 'ismethod', 'ismodule', 'isroutine', 'istraceback', 'joinseq',
> 'modulesbyfile', 'os', 're', 'stack', 'string', 'strseq', 'sys',
> 'tokenize',
> 'trace', 'types', 'walktree']
> >>>

This doesn't look rigbt.  It's missing several routines from the 2.2.1
inspect.py.  Run "python -v" to see where you're getting this file from.

C:\Python22>python -v
... [output supressed] ...
>>> import inspect
# C:\Python22\lib\inspect.pyc matches C:\Python22\lib\inspect.py
import inspect # precompiled from C:\Python22\lib\inspect.pyc
# C:\Python22\lib\string.pyc matches C:\Python22\lib\string.py
import string # precompiled from C:\Python22\lib\string.pyc
import strop # builtin
# C:\Python22\lib\re.pyc matches C:\Python22\lib\re.py
import re # precompiled from C:\Python22\lib\re.pyc
# C:\Python22\lib\sre.pyc matches C:\Python22\lib\sre.py
import sre # precompiled from C:\Python22\lib\sre.pyc
# C:\Python22\lib\sre_compile.pyc matches C:\Python22\lib\sre_compile.py
import sre_compile # precompiled from C:\Python22\lib\sre_compile.pyc
import _sre # dynamically loaded from C:\Python22\DLLs\_sre.pyd
# C:\Python22\lib\sre_constants.pyc matches C:\Python22\lib\sre_constants.py
import sre_constants # precompiled from C:\Python22\lib\sre_constants.pyc
# C:\Python22\lib\sre_parse.pyc matches C:\Python22\lib\sre_parse.py
import sre_parse # precompiled from C:\Python22\lib\sre_parse.pyc
# C:\Python22\lib\dis.pyc matches C:\Python22\lib\dis.py
import dis # precompiled from C:\Python22\lib\dis.pyc
import imp # builtin
# C:\Python22\lib\tokenize.pyc matches C:\Python22\lib\tokenize.py
import tokenize # precompiled from C:\Python22\lib\tokenize.pyc
# C:\Python22\lib\token.pyc matches C:\Python22\lib\token.py
import token # precompiled from C:\Python22\lib\token.pyc
>>> inspect.classify_class_attrs
<function classify_class_attrs at 0x007DF190>
>>>

> Is the inspect module, in my installation, incomplete?

It's more likely that you're picking up some other version of inspect.py
from earlier (than C:\Python22\lib\) on your search path.  This is
especially likely because you're not running Python from a normal location
(D:\my-py-pkgs\generic-v2.0 is something you made up on your own <wink>).

> I installed Python using the MS Windows binary installer
> (Python-2.2.1.exe)
> downloaded from http://www.python.org/.

Same here -- that doesn't account for it.