try vs. has_key()

[Darrell]

My experience shows that throwing an exception is slower.

Aahz Maruch <aahz at netcom.com> wrote in message
news:aahzFAM4oJ.M7M at netcom.com...
> I've seen roughly half the people here doing
>
> try:
>    dict[key].append(foo)
> except:
>    dict[key]=[foo]
>
> with the other half doing
>
> if dict.has_key(key):
>    dict[key].append(foo)
> else:
>    dict[key]=[foo]
>
> Can people explain their preferences?
> --
>                       --- Aahz (@netcom.com)
>
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