如何在启动的交互式会话中导入新安装的python模块？

Question

我在一个终端窗口中运行python交互式会话，然后将numpy安装在另一个终端窗口中。 如何在正在运行的交互式会话中import numpy而不退出并重新启动它？

Answer 1

答案是您不必做任何特别的事情。

% virtualenv foo
New python executable in foo/bin/python
Installing setuptools............done.
Installing pip...............done.
% foo/bin/python
Python 2.7.3 (default, Sep  8 2012, 23:11:27) 
[GCC 4.2.1 Compatible Apple Clang 4.0 ((tags/Apple/clang-421.0.60))] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named numpy
>>> 
Suspended
% foo/bin/pip install numpy
Downloading/unpacking numpy
% fg
>>> import numpy
>>> numpy
<module 'numpy' from '/.../foo/lib/python2.7/site-packages/numpy/__init__.pyc'>