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Re: Getting a list of all modules

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On 2014-07-31 11:41, Steven D'Aprano wrote:
> On Wed, 30 Jul 2014 21:22:18 +0800, Leo Jay wrote:
>
>> On Wed, Jul 30, 2014 at 3:43 PM, Steven D'Aprano <steve@pearwood.info>
>> wrote:
>>> I'm looking for a programmatic way to get a list of all Python modules
>>> and packages. Not just those already imported, but all those which
>>> *could* be imported.
>>>
>>>
>> If you don't actually import it, how can you know it could be imported?
>> Not all .so files are valid python modules. Not all .py files could be
>> imported by all python interpreters.
>
> You're right, of course, but I'm not concerned by whether or not the
> module is error-free and can be imported successfully.
>
> I'm working on tab completion for module names. I have some alpha-quality
> code working, so if I hit TAB after typing "import ma" I get this:
>
>
> py> import ma
> macpath      macurl2path  mailbox      mailcap      mangle
> markupbase   math
>
> For what it's worth, importing "mangle" fails with a SyntaxError. But
> that's okay, I don't expect tab completion to only show *valid*
> modules :-)
>
> Over the next few days I'll make an official announcement, but if anyone
> wants a sneak-peek, check out:
>
> http://code.google.com/p/tabhistory/source/browse/tabhistory.py
>
>
> where I have indenting, code completion, filename completion, and module
> completion all working to some degree or another.

Take a look at what has already been implemented in IPython:

https://github.com/ipython/ipython/blob/master/IPython/core/completerlib.py#L208

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
  that is made terrible by our own mad attempt to interpret it as though it had
  an underlying truth."
   -- Umberto Eco

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Getting a list of all modules Steven D'Aprano <steve@pearwood.info> - 2014-07-30 07:43 +0000
  Re: Getting a list of all modules Chris Angelico <rosuav@gmail.com> - 2014-07-30 18:33 +1000
  Re: Getting a list of all modules Peter Otten <__peter__@web.de> - 2014-07-30 10:46 +0200
  Re: Getting a list of all modules Robert Kern <robert.kern@gmail.com> - 2014-07-30 11:35 +0100
  Re: Getting a list of all modules Leo Jay <python.leojay@gmail.com> - 2014-07-30 21:22 +0800
    Re: Getting a list of all modules Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-07-31 10:41 +0000
      Re: Getting a list of all modules Roy Smith <roy@panix.com> - 2014-07-31 07:55 -0400
        Re: Getting a list of all modules Chris Angelico <rosuav@gmail.com> - 2014-07-31 23:13 +1000
      Re: Getting a list of all modules Terry Reedy <tjreedy@udel.edu> - 2014-07-31 15:59 -0400
      Re: Getting a list of all modules Robert Kern <robert.kern@gmail.com> - 2014-08-01 14:39 +0100
        Re: Getting a list of all modules Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-08-01 15:41 +0000
          Re: Getting a list of all modules jonnicoll11@googlemail.com - 2014-08-02 14:13 -0700
            Re: Getting a list of all modules Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-02 22:22 +0100
          Re: Getting a list of all modules Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-03 14:38 +0100
  Re: Getting a list of all modules Chris Angelico <rosuav@gmail.com> - 2014-07-30 23:27 +1000
  Re: Getting a list of all modules wxjmfauth@gmail.com - 2014-07-30 06:42 -0700
  Re: Getting a list of all modules Ian Kelly <ian.g.kelly@gmail.com> - 2014-07-30 08:29 -0600
  Re: Getting a list of all modules Skip Montanaro <skip@pobox.com> - 2014-07-30 09:45 -0500
  Re: Getting a list of all modules Akira Li <4kir4.1i@gmail.com> - 2014-07-31 22:55 +0400
  Bug with help (was Re: Getting a list of all modules) Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-07-31 20:19 +0100
  Re: Bug with help (was Re: Getting a list of all modules) Terry Reedy <tjreedy@udel.edu> - 2014-07-31 16:15 -0400
  Re: Bug with help (was Re: Getting a list of all modules) Akira Li <4kir4.1i@gmail.com> - 2014-08-02 06:17 +0400
    Re: Bug with help (was Re: Getting a list of all modules) Heinz Schmitz <HeinzSchmitz@gmx.net> - 2014-08-02 10:33 +0200
      Re: Bug with help (was Re: Getting a list of all modules) Robert Kern <robert.kern@gmail.com> - 2014-08-02 13:13 +0100
      Re: Bug with help (was Re: Getting a list of all modules) Terry Reedy <tjreedy@udel.edu> - 2014-08-02 14:17 -0400

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