Python 导入站点错误与多个版本

Question

我在使用一台共享的电脑。我想安装Python 2.6，因为我的项目需要用到Pysco（这个在2.7上不支持），但这台机器上已经安装了2.7，我不能把它删掉，因为那样会影响到其他人的项目。

我在Windows 7上使用的是32位的Python版本。

当我尝试启动Python 2.6时，出现了这个错误：

'import-site' failed; use -v for traceback

看起来Python 2.6试图从Python 2.7中导入一些模块，这导致了启动失败（下面有输出信息）。有没有人知道这可能是什么原因，怎么解决这个问题？谢谢！

使用-v选项运行时，输出如下：

# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
# C:\Python27\Lib\site.pyc matches C:\Python27\Lib\site.py
import site # precompiled from C:\Python27\Lib\site.pyc
# C:\Python27\Lib\os.pyc matches C:\Python27\Lib\os.py
import os # precompiled from C:\Python27\Lib\os.pyc
import errno # builtin
import nt # builtin
# C:\Python27\Lib\ntpath.pyc matches C:\Python27\Lib\ntpath.py
import ntpath # precompiled from C:\Python27\Lib\ntpath.pyc
# C:\Python27\Lib\stat.pyc matches C:\Python27\Lib\stat.py
import stat # precompiled from C:\Python27\Lib\stat.pyc
# C:\Python27\Lib\genericpath.pyc matches C:\Python27\Lib\genericpath.py
import genericpath # precompiled from C:\Python27\Lib\genericpath.pyc
# C:\Python27\Lib\warnings.pyc matches C:\Python27\Lib\warnings.py
import warnings # precompiled from C:\Python27\Lib\warnings.pyc
# C:\Python27\Lib\linecache.pyc matches C:\Python27\Lib\linecache.py
import linecache # precompiled from C:\Python27\Lib\linecache.pyc
# C:\Python27\Lib\types.pyc matches C:\Python27\Lib\types.py
import types # precompiled from C:\Python27\Lib\types.pyc
# C:\Python27\Lib\UserDict.pyc matches C:\Python27\Lib\UserDict.py
import UserDict # precompiled from C:\Python27\Lib\UserDict.pyc
# C:\Python27\Lib\_abcoll.pyc matches C:\Python27\Lib\_abcoll.py
import _abcoll # precompiled from C:\Python27\Lib\_abcoll.pyc
# C:\Python27\Lib\abc.pyc matches C:\Python27\Lib\abc.py
import abc # precompiled from C:\Python27\Lib\abc.pyc
# C:\Python27\Lib\_weakrefset.pyc matches C:\Python27\Lib\_weakrefset.py
import _weakrefset # precompiled from C:\Python27\Lib\_weakrefset.pyc
import _weakref # builtin
'import site' failed; traceback:
Traceback (most recent call last):
  File "C:\Python27\Lib\site.py", line 62, in <module>
    import os
  File "C:\Python27\Lib\os.py", line 398, in <module>
    import UserDict
  File "C:\Python27\Lib\UserDict.py", line 84, in <module>
    _abcoll.MutableMapping.register(IterableUserDict)
  File "C:\Python27\Lib\abc.py", line 109, in register
    if issubclass(subclass, cls):
  File "C:\Python27\Lib\abc.py", line 151, in __subclasscheck__
    if subclass in cls._abc_cache:
  File "C:\Python27\Lib\_weakrefset.py", line 69, in __contains__
    return ref(item) in self.data
TypeError: cannot create weak reference to 'classobj' object

错误处理模块导入版本管理兼容性问题 windows 7 32位系统共享环境 Pysco

Python 导入站点错误与多个版本

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