python寻找模块的路径顺序

>>> import sys
>>> sys.path
['', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python37.zip', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/lib-dynload', '/Users/liangshaohua/Library/Python/3.7/lib/python/site-packages', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages']

python解释器会从当前目录开始，从左到右按顺序查找。前面的我们基本不用，我们经常用的也就是自己写的和site-packages,第三方和内置的都在site-packages里面。

增加模块路径

>>> sys.path.append('module_practice')
>>> import my_module
['', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python37.zip', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/lib-dynload', '/Users/liangshaohua/Library/Python/3.7/lib/python/site-packages', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages', 'module_practice']

删除模块路径

>>> del sys.path[-1]
>>> sys.path
['', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python37.zip', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/lib-dynload', '/Users/liangshaohua/Library/Python/3.7/lib/python/site-packages', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages']

注意：增加也只是在当前程序整个程序的运行过程中加了，退出就没有了。

site  [saɪt]  详细X

基本翻译

n. 地点；位置；场所

vt. 设置；为…选址

网络释义

Site: 站点

Construction Site: 建筑工地

Cell site: 行动通信基地台