[Python-ideas] Implement __add__ for set and frozenset

[Mathias Panzenböck]

Arnaud Delobelle schrieb:
 >
 > As a consequence of Python method implementation, one could write instead:
 >
 >     A = set.union(S, T, U, V)
 >     B = set.intersection(S, T, U, V)
 >
 > which reads nicely
 >

I think this, indeed, reads nicely.

	-panzi