intersection and union idea

[Neil Macneale]

I was day dreaming about python today, and I realized that it would be
very python-ish to have intersection and union operators for lists and
tuples. Eg:

>>> (1,2,3,4) | (1,3,6,8)
(1,2,3,4,6,8)
>>> (1,2,3,4) & (1,3,6,8)
(1,3)

Does such an operator exist? I am sure someone else has thought of this
before.

Neil Macneale

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