Python2.7 tab自动补齐

• 编写一个tab.py文件，内容如下：

import sys
import readline
import rlcompleter

if sys.platform == 'darwin' and sys.version_info[0] == 2:
    readline.parse_and_bind("bind ^I rl_complete")
else:
    readline.parse_and_bind("tab: complete")
# 如果没有readline 模块， 需要自己安装一个

• 将上述文件放到一个Python 模块搜索路径中

$ python
>>> import sys
>>> sys.path
>>> ['', '/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', '/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', '/Library/Python/2.7/site-packages/setuptools-33.1.1-py2.7.egg']

# 选取一个你有写权限的路径 如 
# /Library/Python/2.7/site-packages
# 将tab.p文件拷贝到此路径下
# $ sudo cp tab.py   /Library/Python/2.7/site-packages

• 执行命令行语句, 加入环境变量 PYHTONSTARTUP：

  $ echo "export PYTHONSTARTUP=/Library/Python/2.7/site-packages/tab.py" >> /Users/xxx/.bashrc
  
  $ source  /User/xxx/.bashrc
  

• 搞定 测试

$ python
>>> import os
>>> os.
>>> ...