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rfnXeje�j	�dS(sCWord completion for GNU readline.

The completer completes keywords, built-ins and globals in a selectable
namespace (which defaults to __main__); when completing NAME.NAME..., it
evaluates (!) the expression up to the last dot and completes its attributes.

It's very cool to do "import sys" type "sys.", hit the completion key (twice),
and see the list of names defined by the sys module!

Tip: to use the tab key as the completion key, call

    readline.parse_and_bind("tab: complete")

Notes:

- Exceptions raised by the completer function are *ignored* (and generally cause
  the completion to fail).  This is a feature -- since readline sets the tty
  device in raw (or cbreak) mode, printing a traceback wouldn't work well
  without some complicated hoopla to save, reset and restore the tty state.

- The evaluation of the NAME.NAME... form may cause arbitrary application
  defined code to be executed if an object with a __getattr__ hook is found.
  Since it is the responsibility of the application (or the user) to enable this
  feature, I consider this an acceptable risk.  More complicated expressions
  (e.g. function calls or indexing operations) are *not* evaluated.

- GNU readline is also used by the built-in functions input() and
raw_input(), and thus these also benefit/suffer from the completer
features.  Clearly an interactive application can benefit by
specifying its own completer function and using raw_input() for all
its input.

- When the original stdin is not a tty device, GNU readline is never
  used, and this module (and the readline module) are silently inactive.

i����Nt	CompletercBs8eZdd�Zd�Zd�Zd�Zd�ZRS(cCsP|r"t|t�r"td�n|dkr:d|_nd|_||_dS(s�Create a new completer for the command line.

        Completer([namespace]) -> completer instance.

        If unspecified, the default namespace where completions are performed
        is __main__ (technically, __main__.__dict__). Namespaces should be
        given as dictionaries.

        Completer instances should be used as the completion mechanism of
        readline via the set_completer() call:

        readline.set_completer(Completer(my_namespace).complete)
        snamespace must be a dictionaryiiN(t
isinstancetdictt	TypeErrortNonetuse_main_nst	namespace(tselfR((s#/usr/lib64/python2.7/rlcompleter.pyt__init__,s	cCs�|jrtj|_n|dkrZd|krE|j|�|_qZ|j|�|_ny|j|SWntk
r}dSXdS(s�Return the next possible completion for 'text'.

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|j|
�q�q�W|j�|S(	s�Compute matches when text contains a dot.

        Assuming the text is of the form NAME.NAME....[NAME], and is
        evaluable in self.namespace, it will be evaluated and its attributes
        (as revealed by dir()) are used as possible completions.  (For class
        instances, class members are also considered.)

        WARNING: this can still invoke arbitrary C code, if an object
        with a __getattr__ hook is evaluated.

        i����Ns(\w+(\.\w+)*)\.(\w*)iiRt	__class__s%s.%s(tretmatchtgrouptevalRt	ExceptiontsettdirtdiscardRRtupdatetget_class_membersR$RtgetattrRRtsort(RRR%tmtexprtattrt
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