[Tutor] Re: special object method for method calls?

[Jeff Shannon]

Abel Daniel wrote:

> Jeff Shannon  writes:
> 
> 
>>def __getattr__(self, attr):
>>     if iscallable(self.__dict__[attr]):
>>         # do whatever here
>>     return self.__dict__[attr]
> 
> 
> This won't work. From http://python.org/doc/current/ref/attribute-access.html:
> 
>      "Note that if the attribute is found through the normal
>      mechanism, __getattr__() is not called."
> 
> So calling self.__dict__[attr] in __getattr__ will result in a
> KeyError.

Hm, you're right.  That's odd, I'd have *sworn* that __getattr__() 
could be used to intercept lookups of existing attributes.  Or at 
least that *something* could be.  Unfortunately I don't have time to 
track this down right now...

Jeff Shannon
Technician/Programmer
Credit International