intersection and union idea

Tim Peters tim.one at home.com
Tue Jul 24 02:41:12 CEST 2001


[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.

No and yes.  A feeble subset of set operations isn't worth the bother of
adding ("gratuitous bloat"), so the best hope for this kind of thing is in
PEP 218:

    http://python.sourceforge.net/peps/pep-0218.html

a-lot-of-bloat-is-always-better-than-a-little<wink>-ly y'rs  - tim





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