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python搜索包的路径的实现方法

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查看python搜索包的路径的实现方法:

python搜索包的路径存储在sys.path下

查看方法:

import sys

sys.path

临时添加python搜索包路径的方法:

方法1:(先进入python)

import sys

sys.path.append(‘路径')

(这种方式仅对当前python有效)

方法2:

export PYTHONPATH=路径

(这种方式对所有的python有效)

永久写入sys.path的方法:

方法1:

在已有的sys.path搜索路径下添加 .pth文件,文件内容格式为:

import site; site.addsitedir("/usr/local/lib/python2.7/site-packages")

方法2:

在home文件夹下的.bash_profile文件中添加下面一行:

export PYTHONPATH=路径

注意,启动不同的python之后sys.path的值是不同的,例如:

启动conda下的python是sys.path的值

[
'', 
'/Users/zj_macbook/anaconda/lib/python27.zip', 
'/Users/zj_macbook/anaconda/lib/python2.7', 
'/Users/zj_macbook/anaconda/lib/python2.7/plat-darwin', 
'/Users/zj_macbook/anaconda/lib/python2.7/plat-mac', 
'/Users/zj_macbook/anaconda/lib/python2.7/plat-mac/lib-scriptpackages', 
'/Users/zj_macbook/anaconda/lib/python2.7/lib-tk', 
'/Users/zj_macbook/anaconda/lib/python2.7/lib-old', 
'/Users/zj_macbook/anaconda/lib/python2.7/lib-dynload', 
'/Users/zj_macbook/anaconda/lib/python2.7/site-packages', 
'/Users/zj_macbook/anaconda/lib/python2.7/site-packages/Sphinx-1.4.6-py2.7.egg', 
'/Users/zj_macbook/anaconda/lib/python2.7/site-packages/aeosa', 
'/Users/zj_macbook/anaconda/lib/python2.7/site-packages/setuptools-27.2.0-py2.7.egg'
]

启动

/System/Library/Frameworks/Python.framework/Versions/2.7/bin/python
的python的sys.path的值
[
'', 
'/usr/local/lib/python2.7/site-packages/six-1.10.0-py2.7.egg', 
'/Library/Python/2.7/site-packages/twilio-6.3.dev0-py2.7.egg', 
'/Library/Python/2.7/site-packages/httplib2-0.9.2-py2.7.egg', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python27.zip', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-darwin', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/plat-mac/lib-scriptpackages', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-tk', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-old', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload', 
'/Users/zj_macbook/Library/Python/2.7/lib/python/site-packages', 
'/usr/local/lib/python2.7/site-packages', 
'/usr/local/Cellar/numpy/1.12.0/libexec/nose/lib/python2.7/site-packages', 
'/usr/local/Cellar/protobuf/3.2.0/libexec/lib/python2.7/site-packages', 
'/Library/Python/2.7/site-packages', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python', 
'/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC'
]

以上这篇python搜索包的路径的实现方法就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持。

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