[Tutor] dir() question: how do you know which are attributes and which are methods?

[Danny Yoo]

On Sun, 25 May 2003, R. Alan Monroe wrote:

> Subject says it all...
>
> example
>
>
> class dummy:
>         stuff = 0
>         def task():
>                 pass
>
> >>> dir(dummy)
> ['__doc__', '__module__', 'stuff', 'task']
>
> How do I find out, when working with a new class I'm not familiar with,
> how many attributes it has, and how many methods? dir() is a bit too
> generic because both look identical in the list...

Hi Alan,


(Well, technically, a method in Python is an attribute. *grin*)


You may find the 'inspect' module useful to do digging through the class
definitions:


    http://www.python.org/doc/lib/inspect-types.html


###
>>> class dummy:
...     stuff = 0
...     def task(self):
...         pass
...
>>> import inspect
>>> inspect.getmembers(dummy, inspect.ismethod)
[('task', <unbound method dummy.task>)]
>>>
>>>
>>> class dummy2(dummy):
...     def task2(self): pass
...
>>> inspect.getmembers(dummy2, inspect.ismethod)
[('task', <unbound method dummy2.task>),
 ('task2', <unbound method dummy2.task2>)]
###


Hope this helps.  Good luck to you!