Question

我正在使用共享计算机。我正在尝试为使用Pysco的项目安装Python 2.6（在2.7上不支持），并且机器上有一个2.7的现有安装，我无法在不破坏其他人的项目的情况下删除。

我在Windows 7上使用32位的Python二进制文件。

当我尝试启动Python 2.6时，我收到此错误：

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

看起来Python 2.6正试图从Python 2.7导入模块，导致失败（参见下面的输出）。有人知道可能导致这种情况的原因，以及如何解决这个问题？谢谢！

使用-v选项运行会提供以下输出

# 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

Answer 1

尝试使用virtualenv。它用于分离python及其库的许多实例 - 你可以拥有尽可能多的虚拟环境：python 2.5,2.6,2.7，等等 - 使用任何库的组合 - 所以你可以拥有例如5个不同的python 2.6实例已配置的库集。

从http://pypi.python.org/pypi/virtualenv

开始

Answer 2

我知道这是一个老帖子，但我最近解决了同样的问题。只需更新环境路径以包含新版本即可 Python 2.6 'import site' failed error with 2.7 installed

多个版本的Python导入站点错误

2 个答案: