[Python-ideas] Adding "+" and "+=" operators to dict

[Skip Montanaro]

Addition in the usual sense of the word wouldn't be commutative for
dictionaries. In particular, it's hard to see how you could define addition
so these two expressions are equal:

{'a': 1} + {'a': 2}

{'a': 2} + {'a': 1}

'+=' is no problem.

Skip
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/python-ideas/attachments/20150211/9f281152/attachment.html>