python命令行TAB补全功能

方法一:

vim /usr/lib/python2.6/tab.py
#!/usr/bin/env python
# python startup 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

# python2.6
>>> import tab
>>> import sys
>>> sys.path
>>> f = file('test')
>>> f.
f.__class__(         f.__new__(           f.encoding           f.readinto(
f.__delattr__(       f.__reduce__(        f.errors             f.readline(
f.__doc__            f.__reduce_ex__(     f.fileno(            f.readlines(
f.__enter__(         f.__repr__(          f.flush(             f.seek(
f.__exit__(          f.__setattr__(       f.isatty(            f.softspace
f.__format__(        f.__sizeof__(        f.mode               f.tell(
f.__getattribute__(  f.__str__(           f.name               f.truncate(
f.__hash__(          f.__subclasshook__(  f.newlines           f.write(
f.__init__(          f.close(             f.next(              f.writelines(
f.__iter__(          f.closed             f.read(              f.xreadlines(

方法二:
  

编辑一个~/.py_tab.py(名字可任意起),输入以下内容:
import readline
import rlcompleter
readline.parse_and_bind("tab: complete")
设置环境变量~/.bashrc
export PYTHONSTARTUP=~/.py_tab.py
重启当前shell.

Windows 7下配置python3的tab补全功能；

#首先安装readline模块
pip install pyreadline
编辑C:\Python3\Lib\tab.py文件，内容如下：
import readline
import rlcompleter
readline.parse_and_bind('tab: complete')