[Python-3000] dict view operations

[Georg Brandl]

Georg Brandl schrieb:
> While looking at documenting the dict view changes, I came across an
> inconsistency in how the dict views' set-like operations are implemented:
> with sets/frozensets, the operator versions only work if the other operand
> is a set/frozenset, while the dict view operators allow any iterable.
> 
> Do we care?

Oh, and another thing: the items views can contain unhashable values, so

d.items() & d.items()

will fail for such dictionaries since the operands are converted to sets
before doing the intersection.

I suspect there's nothing that can easily be done about that though...

Georg

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