dict.get and str.xsplit

[marek.rocki at wp.pl]

bearophileH... at lycos.com napisał(a):
> marek.ro... at wp.pl:
> > As for the original prooblem, why not use
> > defaultdict? I think it's the most idiomatic way to achieve what we
> > want. And also the fastest one, according to my quick-and-dirty tests:
>
> It adds the new keys, I can't accept that:

Right, my fault not noticing that. I experimented further with
__missing__ method and with "ask forgiveness" idiom (try... except
KeyError) and they were both noticeably slower. So checking with "in"
may be the most efficient way we have.

Regards,
Marek