checking if an object IS in a list

Marc 'BlackJack' Rintsch bj_666 at gmx.net
Fri Jul 18 17:52:26 CEST 2008


On Fri, 18 Jul 2008 07:39:38 -0700, nicolas.pourcelot wrote:

> So, I use something like this in 'sheet.objects.__setattr__(self,
> name, value)':
> if type(value) == Polygon:
>     for edge in value.edges:
>         if edge is_in sheet.objects.__dict__.itervalues():
>             object.__setattr__(self, self.__new_name(), edge)
> 
> Ok, I suppose it's confused, but it's difficult to sum up. ;-)

You are setting attributes with computed names?  How do you access them? 
Always with `gettattr()` or via the `__dict__`?  If the answer is yes, why
don't you put the objects the into a dictionary instead of the extra
redirection of an objects `__dict__`?

Oh and the `type()` test smells like you are implementing polymorphism
in a way that should be replaced by OOP techniques.

Ciao,
	Marc 'BlackJack' Rintsch



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