Pip在linux上不工作，返回错误：“from urllib3。包装.订购目录导入OrderedDict ImportError:没有名为“ordered\u dict”的模块

Question

我注意到我不能再使用pip了，因为导入错误不管我用pip做什么，eve不能只运行“pip”而不获取：

无法使用pip安装urllib3或setuputils，因此我尝试下载然后重试设置.py安装它们。什么都没用

Traceback (most recent call last):
File "/usr/bin/pip", line 9, in <module>
load_entry_point('pip==1.5.6', 'console_scripts', 'pip')()
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 489, 
in load_entry_point
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 2843, 
in load_entry_point
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 2434, 
in load
File "build/bdist.linux-x86_64/egg/pkg_resources/__init__.py", line 2440, 
in resolve
File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 74, in 
<module>
from pip.vcs import git, mercurial, subversion, bazaar  # noqa
File "/usr/lib/python2.7/dist-packages/pip/vcs/mercurial.py", line 9, in 
<module>
from pip.download import path_to_url
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 22, in 
<module>
import requests, six
File "/usr/lib/python2.7/dist-packages/requests/__init__.py", line 80, in 
<module>
from . import utils
File "/usr/lib/python2.7/dist-packages/requests/utils.py", line 25, in 
<module>
from .compat import parse_http_list as _parse_list_header
File "/usr/lib/python2.7/dist-packages/requests/compat.py", line 94, in 
<module>
from urllib3.packages.ordered_dict import OrderedDict
ImportError: No module named ordered_dict

如果我尝试tipip安装任何东西，它会给我错误。有什么建议吗？你知道吗