Newbie question on Classes

Reedick, Andrew jr9445 at ATT.COM
Thu Jan 10 23:27:03 CET 2008


> -----Original Message-----
> From: python-list-bounces+jr9445=att.com at python.org [mailto:python-
> list-bounces+jr9445=att.com at python.org] On Behalf Of Adrian Wood
> Sent: Thursday, January 10, 2008 4:47 PM
> To: python-list at python.org
> Subject: Newbie question on Classes
> 
> 
> I can call man.state() and then woman.state() or Person.state(man) and
> Person.state(woman) to print the status of each. This takes time and
> space however, and becomes unmanageable if we start talking about a
> large number of objects, and unworkable if there is an unknown number.
> What I'm after is a way to call the status of every instance of Man,
> without knowing their exact names or number.
> 



How about searching the garbage collector?

import gc
from random import random

class Person:
    def __init__(self):
        self.data= random() * 1000 + 1

    def WhoAmI(self):
        return self.data


a = Person()
b = Person()

for i in gc.get_objects():
    try:
        # classes have __class__ and __dict__ defined according to the
docs
        if i.__class__ and i.__dict__ :
            print i.__class__
            if str(i.__class__) == '__main__.Person':
                print "\tI am", i.WhoAmI()
    except:
        pass

    

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