[Python-ideas] universal set object for use in set manipulation

[Georg Brandl]

Andy Kish schrieb:

> Instead you have to do something contorted like:
> 
>     if len(sets) == 0:
>         set_intersection = set()
>     else:
>         sets_i = iter(sets)
>         set_intersection = sets_i.next()
>         for s in sets:
>             set_intersection &= s

Note that a simple ``reduce(operator.and_, sets)`` would suffice for > 1 set.

Georg

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