Does python have the static function member like C++

Bruno Desthuilliers bruno.42.desthuilliers at wtf.websiteburo.oops.com
Wed Apr 11 09:09:48 CEST 2007


goodwolf a écrit :
(snip)
> 1. In this case you will prefer a classmethod instead a staticmethod.
> 2. If counter is the number of instances of class AAA then you will
> incrase counter inside __init__ method.
> 
> class AAA (object):
>     counter = 0
>     def __init__(self):
>         type(self).counter_increase()

You can call a class method on an instance:
            self.counter_increase()

And FWIW, this is probably something I'd put in the constructor (the 
__new__ method), not in the initializer.

>     @classmethod
>     def counter_increase(cls):
>         cls.counter += 1
> 
> or
> 
> class AAA (object):
>     counter = 0
>     def __init__(self):
>         type(self).counter += 1

Instances have a reference to their class, so you can also write this:
           self.__class__.counter += 1




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