Python 中os.path与sys.path的区别

定义区别

• os.path 主要是用于对系统路径文件的操作。
• sys.path 主要是对Python解释器的系统环境参数的操作（动态的改变Python解释器搜索路径）。

验证

>>> import os,sys
>>> print(os.path)
<module 'posixpath' from '/usr/lib64/python2.7/posixpath.pyc'>
>>> print(sys.path)
[ '/usr/lib64/python27.zip', '/usr/lib64/python2.7', '/usr/lib64/python2.7/plat-linux2', '/usr/lib64/python2.7/lib-tk', '/usr/lib64/python2.7/lib-old', '/usr/lib64/python2.7/lib-dynload', '/usr/lib64/python2.7/site-packages', '/usr/lib64/python2.7/site-packages/gtk-2.0', '/usr/lib/python2.7/site-packages']

其他

获取当前目录

test.py

# coding:utf-8

import sys,os

real_dir = os.path.realpath(__file__)
print(real_dir)
///    /home/code/test/test.py

cur_dir = os.path.dirname(os.path.realpath(__file__))
print(cur_dir)
///    /home/code/test