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学习python，经常要使用python命令行查找一些不熟悉的使用方法等等，但是python命令行下没有自带tab补全的功能，看见别人写了tab，可以解决特此记下，以备后用
1.创建tab.py文件，内容如下：
#!/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
2.代码有了，我们还需要将脚本放到python指定的目录下，可以使用sys.path来查看一下
>>> import sys >>> sys.path [‘‘, ‘/usr/lib/python2.7‘, ‘/usr/lib/python2.7/plat-x86_64-linux-gnu‘, ‘/usr/lib/python2.7/lib-tk‘, ‘/usr/lib/python2.7/lib-old‘, ‘/usr/lib/python2.7/lib-dynload‘, ‘/usr/local/lib/python2.7/dist-packages‘, ‘/usr/lib/python2.7/dist-packages‘, ‘/usr/lib/python2.7/dist-packages/PILcompat‘, ‘/usr/lib/python2.7/dist-packages/gtk-2.0‘, ‘/usr/lib/python2.7/dist-packages/ubuntu-sso-client‘]
一般我们会将这一类代码放在/usr/local/lib/python2.7/dist-packages目录下
3.把tab.py 放到指定目录下
mv tab.py /usr/local/lib/python2.7/dist-packages
4.使用
>>> import tab >>> sys. sys.__class__( sys.__subclasshook__( sys.exitfunc( sys.path_importer_cache sys.__delattr__( sys._clear_type_cache( sys.flags sys.platform sys.__dict__ sys._current_frames( sys.float_info sys.prefix sys.__displayhook__( sys._getframe( sys.float_repr_style sys.ps1 sys.__doc__ sys._mercurial sys.getcheckinterval( sys.ps2 sys.__excepthook__( sys._multiarch sys.getdefaultencoding( sys.py3kwarning sys.__format__( sys.api_version sys.getdlopenflags( sys.pydebug sys.__getattribute__( sys.argv sys.getfilesystemencoding( sys.setcheckinterval( sys.__hash__( sys.builtin_module_names sys.getprofile( sys.setdlopenflags( sys.__init__( sys.byteorder sys.getrecursionlimit( sys.setprofile( sys.__name__ sys.call_tracing( sys.getrefcount( sys.setrecursionlimit( sys.__new__( sys.callstats( sys.getsizeof( sys.settrace( sys.__package__ sys.copyright sys.gettrace( sys.stderr sys.__reduce__( sys.displayhook( sys.hexversion sys.stdin sys.__reduce_ex__( sys.dont_write_bytecode sys.long_info sys.stdout sys.__repr__( sys.exc_clear( sys.maxint sys.subversion sys.__setattr__( sys.exc_info( sys.maxsize sys.version sys.__sizeof__( sys.exc_type sys.maxunicode sys.version_info sys.__stderr__ sys.excepthook( sys.meta_path sys.warnoptions sys.__stdin__ sys.exec_prefix sys.modules sys.__stdout__ sys.executable sys.path sys.__str__( sys.exit( sys.path_hooks
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原文地址：http://www.cnblogs.com/lincj/p/5617969.html
