Finding Function Args?

[Chris S.]

Is there a way to dynamically find out how many arguments a function
requires? I thought this would be listed somewhere with dir() but I
can't find anything. Any help is appreciated.

 

[Mike C. Fletcher]

Check the standard module inspect, particularly;
(['s', 'quote'], None, None, (None,))


HTH,
Mike

Is there a way to dynamically find out how many arguments a function
requires? I thought this would be listed somewhere with dir() but I
can't find anything. Any help is appreciated.

________________________________________________
Mike C. Fletcher
Designer, VR Plumber, Coder
http://members.rogers.com/mcfletch/
blog: http://zope.vex.net/~mcfletch/plumbing/

 

[Chris S.]

Thanks for the help.

Check the standard module inspect, particularly;
(['s', 'quote'], None, None, (None,))


HTH,
Mike

Is there a way to dynamically find out how many arguments a function
requires? I thought this would be listed somewhere with dir() but I
can't find anything. Any help is appreciated.

________________________________________________
Mike C. Fletcher
Designer, VR Plumber, Coder
http://members.rogers.com/mcfletch/
blog: http://zope.vex.net/~mcfletch/plumbing/

 

[Miki Tebeka]

Hello Mike,

Check the standard module inspect, particularly;
(['s', 'quote'], None, None, (None,))

or just cgi.escape.func_code.co_varnames

Bye.

 

[Graham Dumpleton]

Check the standard module inspect, particularly;
(['s', 'quote'], None, None, (None,))

Also:

cgi.escape.func_code.co_argcount

Should yield:

2

Lots of func stuff should be visible when dir() is used. You just
need to work out what is where.
['__call__', '__class__', '__delattr__', '__dict__', '__doc__',
'__get__', '__getattribute__', '__hash__', '__init__', '__module__',
'__name__', '__new__', '__reduce__', '__reduce_ex__', '__repr__',
'__setattr__', '__str__', 'func_closure', 'func_code',
'func_defaults', 'func_dict', 'func_doc', 'func_globals', 'func_name']
['__class__', '__cmp__', '__delattr__', '__doc__', '__getattribute__',
'__hash__', '__init__', '__new__', '__reduce__', '__reduce_ex__',
'__repr__', '__setattr__', '__str__', 'co_argcount', 'co_cellvars',
'co_code', 'co_consts', 'co_filename', 'co_firstlineno', 'co_flags',
'co_freevars', 'co_lnotab', 'co_name', 'co_names', 'co_nlocals',
'co_stacksize', 'co_varnames']

Similar thing for class methods and callable objects if you know where
to look.
['__call__', '__class__', '__delattr__', '__dict__', '__doc__',
'__get__', '__getattribute__', '__hash__', '__init__', '__module__',
'__name__', '__new__', '__reduce__', '__reduce_ex__', '__repr__',
'__setattr__', '__str__', 'func_closure', 'func_code',
'func_defaults', 'func_dict', 'func_doc', 'func_globals', 'func_name']
['__call__', '__class__', '__delattr__', '__dict__', '__doc__',
'__get__', '__getattribute__', '__hash__', '__init__', '__module__',
'__name__', '__new__', '__reduce__', '__reduce_ex__', '__repr__',
'__setattr__', '__str__', 'func_closure', 'func_code',
'func_defaults', 'func_dict', 'func_doc', 'func_globals', 'func_name']

Obviously, the "inspect" module is mean't to hide to a degree all this
stuff, but still sometimes easier to access it directly.