Python没有'；无法从dist包中找到模块

Debian，Python 2.7

我安装了一个模块，但是Python没有看到它，IPython也看到了。调查显示，所有外部模块都安装在

\usr\local\lib\python2.7\dist软件包中

Python的sys.path
伊皮顿氏
我怎样才能解决这个问题

现在我明白了，我有两个Python 2.7安装。我怎么修理它？如果我卸载其中一个会有帮助吗？怎么做

如何使
pip
安装2.7.10的软件包？
@AnandSKumar如果我有几个python呢？我只是注意到它们有不同的python版本。怎么可能？你是如何安装ipython的？@AnandSKumar dunno。使用pip或apt Get时，您是否单独安装了python（可能是较新的版本）？
Python 2.7.10 (default, Jul 11 2015, 09:39:24)
[GCC 4.7.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> print sys.path
['', '/usr/local/lib/python27.zip', '/usr/local/lib/python2.7', '/usr/local/lib/python2.7/plat-linux2', '/usr/local/lib/python2.7/lib-tk', '/usr/local/lib/python2.7/lib-old', '/usr/local/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/site-packages']

Python 2.7.3 (default, Mar 14 2014, 11:57:14)
Type "copyright", "credits" or "license" for more information.

IPython 3.2.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: import sys; print sys.path
['', '/usr/local/bin', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-linux2', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/pymodules/python2.7', '/usr/local/lib/python2.7/dist-packages/IPython/extensions', '/root/.ipython']