為什么導入ctypes會引發ImportError？

Question

Python 2.6.2 (r262:71605, Apr 14 2009, 22:40:02) [MSC v.1500 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import ctypes
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python26\lib\ctypes\__init__.py", line 17, in <module>
    from struct import calcsize as _calcsize
ImportError: cannot import name calcsize

>>> from ctypes import *
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python26\lib\ctypes\__init__.py", line 17, in <module>
    from struct import calcsize as _calcsize
ImportError: cannot import name calcsize
>>>

Answer 1

看來你的路徑中有另一個struct.py。

試試看python找到你的struct模塊的地方：

>>> import inspect
>>> import struct
>>> inspect.getabsfile(struct)
'c:\\python26\\lib\\struct.py'