[Python-Dev] Re: Guido's Magic Code was: inline sort option

[Jeremy Fincher]

On Thursday 30 October 2003 08:54 am, Alex Martelli wrote:
> just like in about ALL cases
> of Python calls *except* "aclass.baz(aninst)" which is an exceptional
> case in which Python itself does (enforced) typechecking for you.

Out of curiosity, why does Python do this typechecking?

I just ran into a situation where such calls in my subclass of sets.Set fail 
if the sets module gets reloaded.  Is there some really important reason why 
in this case (and only this case) Python does typechecking on pure-Python 
classes?

Jeremy