[Tutor] Counting method calls

[Ricardo Aráoz]

Kent Johnson wrote:
> Ricardo Aráoz wrote:
>> Hi, I'm trying to count method calls. Tried this but...
>>>>>> class MyList(list):
>>> ...     def __init__(self):
>>> ...         self.calls = 0

... snipped .....

> I think this does what you want. Notice that it doesn't have anything
> special to do with lists, either, except instantiating a list. It can be
> turned into a general-purpose counting wrapper by passing the instance
> to be counted to the constructor:
> 
> class CallCounter(object):
>      def __init__(self, delegate):
>          self._delegate = delegate
>          self.calls = 0
>      def __getattr__(self, name):
>          value = getattr(self._delegate, name)
>          if callable(value):
>              self.calls += 1
>          return value
> 
> a = CallCounter(list())
> 
> etc.
> 
> Kent
> 

Thanks Kent!