python之没有sudo就无法在python中导入模块-ubuntu 12.04

我感觉这是我升级到 ubuntu 12.04 后的新问题。

现在，如果我进入交互式 shell 并导入像 urllib2 这样的标准模块，我会收到以下错误:

$ python 
Python 2.7.1+ (r271:86832, Apr 11 2011, 18:13:53)  
[GCC 4.5.2] on linux2 
Type "help", "copyright", "credits" or "license" for more information. 
>>> import urllib2 
Traceback (most recent call last): 
  File "<stdin>", line 1, in <module> 
  File "/usr/lib/python2.7/urllib2.py", line 94, in <module> 
   import httplib 
  File "/usr/lib/python2.7/httplib.py", line 79, in <module> 
   import mimetools 
  File "/usr/lib/python2.7/mimetools.py", line 6, in <module> 
   import tempfile 
  File "/usr/lib/python2.7/tempfile.py", line 34, in <module> 
   from random import Random as _Random 
  File "/usr/lib/python2.7/random.py", line 47, in <module> 
   from os import urandom as _urandom 
  ImportError: cannot import name urandom 
Error in sys.excepthook: 
Traceback (most recent call last): 
  File "/usr/lib/python2.7/dist-packages/apport_python_hook.py", line 66, in     apport_excepthook 
    from apport.fileutils import likely_packaged, get_recent_crashes 
  File "/usr/lib/python2.7/dist-packages/apport/__init__.py", line 1, in <module> 
    from apport.report import Report 
  File "/usr/lib/python2.7/dist-packages/apport/report.py", line 12, in <module> 
    import subprocess, tempfile, os.path, urllib, re, pwd, grp, os 
  File "/usr/lib/python2.7/tempfile.py", line 34, in <module> 
    from random import Random as _Random 
  File "/usr/lib/python2.7/random.py", line 47, in <module> 
    from os import urandom as _urandom 
    ImportError: cannot import name urandom 
 
Original exception was: 
Traceback (most recent call last): 
  File "<stdin>", line 1, in <module> 
  File "/usr/lib/python2.7/urllib2.py", line 94, in <module> 
    import httplib 
  File "/usr/lib/python2.7/httplib.py", line 79, in <module> 
    import mimetools 
  File "/usr/lib/python2.7/mimetools.py", line 6, in <module> 
    import tempfile 
  File "/usr/lib/python2.7/tempfile.py", line 34, in <module> 
    from random import Random as _Random 
   File "/usr/lib/python2.7/random.py", line 47, in <module> 
from os import urandom as _urandom 
ImportError: cannot import name urandom 
>>> 

如果我在进入交互式 shell 之前运行 sudo，一切都很好，它导入时不会出错。

我不想只 chmod 755 我的整个/usr/lib/python2.7 目录，那么我该怎么做才能以更明智的方式使事情运行得更顺畅？

请您参考如下方法:

使用虚拟机。这将为您提供一个不受过去安装影响的干净环境。