How to list all functions in an imported module?

[Duncan Booth]

Peter Hansen <peter at engcorp.com> wrote in
news:o-idnZ6O7qVg5SvdRVn-tA at powergate.ca: 

> Peter Abel wrote:
> 
>> klachemin at home.com (Kamilche) wrote in message
>> news:<889cbba0.0405270506.3cd91d26 at posting.google.com>... 
>> 
>>>I can't figure out how to list all functions from an imported module.
>>>I searched Google, but all the answers I found didn't work. Did
>>>something change in Python 2.2, perhaps there's a new method of doing
>>>it?
>> 
>> 
>> e.g the module os
>> 
>> 
>>>>>import os,types
>>>>>for k,v in os.__dict__.items():
>> 
>> ...      if type(v) == types.BuiltinFunctionType or\
>> ...      type(v) == types.BuiltinMethodType or\
>> ...      type(v) == types.FunctionType or\
>> ...      type(v) == types.MethodType:
>> ...           print '%-20s: %r' % (k,type(v))
> 
> Yuck... wouldn't using "callable(v)" be a lot nicer?

It depends whether he wants to include callable classes or really does want 
just functions.

If he doesn't want callable classes, then a nicer way would be to use 
isinstance, which also gives you the option of factoring out the list of 
types:

>>> FUNCTION_TYPES = (types.BuiltinFunctionType,
		      types.BuiltinMethodType,
		      types.FunctionType,
		      types.MethodType,)

>>> for k,v in os.__dict__.items():
 	if isinstance(v, FUNCTION_TYPES):
 		print '%-20s: %r' % (k,type(v))