Steven D'Aprano: > Personally, I'd rather see dictionaries grow methods like > symmetric_difference, union, etc. than worry about whether you use del or > remove to remove elements from a set.
I have functions for all those operations, so I think they can be useful, but in practice I don't use them often. I think it's a matter of keeping data structures separated in the mind. Another problem is that with those operations you have to find a way to manage values too, are they part of the uniqueness, etc? So there can be different semantics of a single operation, and this may lead to people that have a wrong image model of the purpose of some of those methods. Bye, bearophile -- http://mail.python.org/mailman/listinfo/python-list
