Python中的Tab补全功能添加

用 Python shell 没有 Tab 补全还是挺痛苦的，下面就记录一下如何补全：

1. 先准备一个 tab.py 的脚本。

>>> tap.py

#!/usr/bin/python
 # python tab file
   
 import sys
 import readline
 import rlcompleter
 import atexit
 import os
 # tab completion
 readline.parse_and_bind('tab: complete')
 # history file
 histfile = os.path.join(os.environ['HOME'], '.pythonhistory')
 try:
     readline.read_history_file(histfile)
 except IOError:
     pass
 atexit.register(readline.write_history_file, histfile)
   
 del os, histfile, readline, rlcompleter

2. 查看Python默认的模块存放地址

Python 3.6.3 (v3.6.3:2c5fef8, Oct 3 2017, 18:22:56) [MSG v.1900 64 bit (AMD64)] on win32 
 Type "help", "copyright", "credits" or "license" for more information.  
 >>> import string   
 >>> string .__file__  
 'C:\\Users\\Administrator\\AppData\\Local\\Programs\\Python\\Python36\\lib\\string.py'

3. 拷贝该脚本到默认模块存放路径

>>> 'C:\\Users\\Administrator\\AppData\\Local\\Programs\\Python\\Python36\\lib\\'

4. 现在可以用了.hhhhhhhhhhh