On Sat, 23 Dec 2017 03:50 pm, Peng Yu wrote: > Where is it documented that __xor__ and ^ is the same as > symmetric_difference? Thanks.
You read https://docs.python.org/2/library/stdtypes.html#set to learn that ^ is the same as symmetric difference, and then read: https://docs.python.org/2/reference/datamodel.html#emulating-numeric-types to learn that you must override __xor__ to override the ^ operator. It isn't really clear from the documentation that the set operator ^ is implemented by __xor__ (and also __rxor__). Perhaps you can suggest a documentation patch? -- Steve “Cheer up,” they said, “things could be worse.” So I cheered up, and sure enough, things got worse. -- https://mail.python.org/mailman/listinfo/python-list
