assert sys.modules[modname] is old_mod

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使用了pypiwin32 包中的pythoncom的时候，当跑在apache下，日志报错：

[Thu Aug 27 17:06:44 2015] [error] [client 127.0.0.1] import pywintypes
[Thu Aug 27 17:06:44 2015] [error] [client 127.0.0.1] File "C:\\Python27\\lib\\site-packages\\win32\\lib\\pywintypes.py", line 124, in <module>
[Thu Aug 27 17:06:44 2015] [error] [client 127.0.0.1] __import_pywin32_system_module__("pywintypes", globals())
[Thu Aug 27 17:06:44 2015] [error] [client 127.0.0.1] File "C:\\Python27\\lib\\site-packages\\win32\\lib\\pywintypes.py", line 114, in __import_pywin32_system_module__
[Thu Aug 27 17:06:44 2015] [error] [client 127.0.0.1] assert sys.modules[modname] is old_mod
[Thu Aug 27 17:06:44 2015] [error] [client 127.0.0.1] AssertionError

解决方案：

Temporary solution is comment out two lines in win32/lib/pywintypes.py:

if sys.version_info < (3,0):

    #注释掉下面两行就ok了，不要忘记pass!!!!!

    #assert sys.modules[modname] is old_mod 

    #assert mod is old_mod

    pass

else:

    assert sys.modules[modname] is not old_mod

    assert sys.modules[modname] is mod

    # as above - re-reset to the *old* module object then update globs.

    sys.modules[modname] = old_mod

    globs.update(mod.__dict__)

assert sys.modules[modname] is old_mod

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原文地址：http://www.cnblogs.com/zhaojia-dream/p/4763951.html