linux python 修改环境变量 添加自定义模块路径
Posted ExplorerMan
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了linux python 修改环境变量 添加自定义模块路径相关的知识,希望对你有一定的参考价值。
举一个很简单的例子,如果你发现一个包或者模块,明明是有的,但是会发生这样的错误:
>>> from algorithm import *
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named algorithm
那么就应该是环境变量出问题了
okay,来看怎么搞
>>>>> import sys
>>> sys.path
[‘‘, ‘/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/python2.7/dist-packages/PIL‘, ‘/usr/lib/python2.7/dist-packages/gst-0.10‘, ‘/usr/lib/python2.7/dist-packages/gtk-2.0‘, ‘/usr/lib/pymodules/python2.7‘, ‘/usr/lib/python2.7/dist-packages/ubuntu-sso-client‘, ‘/usr/lib/python2.7/dist-packages/ubuntuone-client‘, ‘/usr/lib/python2.7/dist-packages/ubuntuone-control-panel‘, ‘/usr/lib/python2.7/dist-packages/ubuntuone-couch‘, ‘/usr/lib/python2.7/dist-packages/ubuntuone-installer‘, ‘/usr/lib/python2.7/dist-packages/ubuntuone-storage-protocol‘]
首先,这些显示出了python自己的环境变量
然后
>>> sys.path.append(‘/media/File/Code_DownloadCodeAndSelfCode/PyWorkPlace/xView‘)
>>> sys.path
[‘‘, ‘/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/python2.7/dist-packages/PIL‘, ‘/usr/lib/python2.7/dist-packages/gst-0.10‘, ‘/usr/lib/python2.7/dist-packages/gtk-2.0‘, ‘/usr/lib/pymodules/python2.7‘, ‘/usr/lib/python2.7/dist-packages/ubuntu-sso-client‘, ‘/usr/lib/python2.7/dist-packages/ubuntuone-client‘, ‘/usr/lib/python2.7/dist-packages/ubuntuone-control-panel‘, ‘/usr/lib/python2.7/dist-packages/ubuntuone-couch‘, ‘/usr/lib/python2.7/dist-packages/ubuntuone-installer‘, ‘/usr/lib/python2.7/dist-packages/ubuntuone-storage-protocol‘, ‘/media/File/Code_DownloadCodeAndSelfCode/PyWorkPlace/xView/emotionAnalyse‘, ‘/media/File/Code_DownloadCodeAndSelfCode/PyWorkPlace/xView‘]
>>> import algorithm
这样,就把自己的algorithm这个包导入了
ok了!
可是这样有个问题,下次还得设置才行。
那么就改一下系统变量吧:
$export PYTHONPATH=$PYTHONPATH:/home/YOURSELFPATH
亲测有效~
以上是关于linux python 修改环境变量 添加自定义模块路径的主要内容,如果未能解决你的问题,请参考以下文章
Linux添加PYTHONPATH方法以及3种修改环境变量方法