mac python tab 补全

Lvnian:~ root# cat tab.py
#!/usr/bin/python
import readline,rlcompleter

### Indenting
class TabCompleter(rlcompleter.Completer):
    """Completer that supports indenting"""
    def complete(self, text, state):
        if not text:
            return ('    ', None)[state]
        else:
            return rlcompleter.Completer.complete(self, text, state)

readline.set_completer(TabCompleter().complete)

### Add autocompletion
if 'libedit' in readline.__doc__:
    readline.parse_and_bind("bind -e")
    readline.parse_and_bind("bind '\t' rl_complete")
else:
    readline.parse_and_bind("tab: complete")

### Add history
import os
histfile = os.path.join(os.environ["HOME"], ".pyhist")
try:
    readline.read_history_file(histfile)
except IOError:
    pass
import atexit
atexit.register(readline.write_history_file, histfile)
del histfile
Lvnian:~ root#

>>> 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']

mv tab.py /usr/local/lib/python2.7/dist-packages

>>> 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(