讓python的交互解釋器支持tab補全、提示功能
方法1：
一、執行python腳本
1.創建一個python腳本，以.py結尾：
腳本如下：
import sys
import readline
import rlcompleter
import atexit
import os
readline.parse_and_bind('tab:complete')
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的運行環境
[root@localhost ~]# whereis python
python: /usr/bin/python /usr/bin/python2.6/usr/lib/python2.6 /usr/lib64/python2.6 /usr/include/python2.6/usr/share/man/man1/python.1.gz
3.給tab.py設置權限，並把tab.py複製到相應的目錄
chmod 755 tab.py
cp tab.py /usr/lib64/python2.6/site-packages/
至此，python的補全功能已經完成。
例子：
# python
>>> import tab
>>> pri<tab>
>>> import sys
>>> sys.<tab><tab>
方法2：
安裝ipython：提供補全功能
[root@localhost ~]#tar xf ipython-1.2.0.tar.gz
cd ipython-1.2.0
[[email protected]]# /usr/local/python27/bin/python2.7 setup.py build
[[email protected]]# /usr/local/python27/bin/python2.7 setup.py install
[[email protected]]# ln -sv /usr/local/python27/bin/python2.7 /usr/bin/python2.7
[[email protected]]# ln -sv /usr/local/python27/bin/ipython /usr/bin/
[[email protected]]# ipython