用Python时候没有TAB补全，挺痛苦的，以下是添加方法
1.准备一个Python脚本 cat > tab.py <<EOF
#!/usr/local/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
EOF
2.查看Python默认的模块存放位置
[[email protected] python2.7]# python
Python 2.7.6 (default, Sep 17 2017, 04:41:33)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-17)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
['', '/usr/local/lib/python27.zip', '/usr/local/lib/python2.7', '/usr/local/lib/python2.7/plat-linux2', '/usr/local/lib/python2.7/lib-tk', '/usr/local/lib/python2.7/lib-old', '/usr/local/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/site-packages']
3.拷贝到目录下
cp tab.py /usr/local/lib/python2.7
4.现在可以用了
[[email protected] python]# cp tab.py /usr/local/lib/python2.7
[[email protected] python]# python
Python 2.7.6 (default, Sep 17 2017, 04:41:33)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-17)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import tab
>>> import sys
>>> sys.
sys.__class__( sys.__sizeof__( sys.displayhook( sys.getprofile( sys.ps1
sys.__delattr__( sys.__stderr__ sys.dont_write_bytecode sys.getrecursionlimit( sys.ps2
sys.__dict__ sys.__stdin__ sys.exc_clear( sys.getrefcount( sys.py3kwarning
sys.__displayhook__( sys.__stdout__ sys.exc_info( sys.getsizeof( sys.setcheckinterval(
sys.__doc__ sys.__str__( sys.exc_type sys.gettrace( sys.setdlopenflags(
sys.__excepthook__( sys.__subclasshook__( sys.excepthook( sys.hexversion sys.setprofile(
sys.__format__( sys._clear_type_cache( sys.exec_prefix sys.long_info sys.setrecursionlimit(
sys.__getattribute__( sys._current_frames( sys.executable sys.maxint sys.settrace(
sys.__hash__( sys._getframe( sys.exit( sys.maxsize sys.stderr
sys.__init__( sys._mercurial sys.exitfunc( sys.maxunicode sys.stdin
sys.__name__ sys.api_version sys.flags sys.meta_path sys.stdout
sys.__new__( sys.argv sys.float_info sys.modules sys.subversion
sys.__package__ sys.builtin_module_names sys.float_repr_style sys.path sys.version
sys.__reduce__( sys.byteorder sys.getcheckinterval( sys.path_hooks sys.version_info
sys.__reduce_ex__( sys.call_tracing( sys.getdefaultencoding( sys.path_importer_cache sys.warnoptions
sys.__repr__( sys.callstats( sys.getdlopenflags( sys.platform
sys.__setattr__( sys.copyright sys.getfilesystemencoding( sys.prefix
原文地址：http://blog.51cto.com/wangergui/2056488