New submission from wim glenn: The comparisons section of the python 2 docs says:
--- https://docs.python.org/2/reference/expressions.html#comparisons For the list and tuple types, x in y is true if and only if there exists an index i such that x == y[i] is true. --- But it's not strictly speaking correct. Simplest counter-example: x = float('nan') y = [x] The python 3 docs instead mention correct equivalent which is any(x is e or x == e for e in y) ---------- assignee: docs@python components: Documentation messages: 241317 nosy: docs@python, wim.glenn priority: normal severity: normal status: open title: Inaccuracy about "in" keyword for list and tuple type: enhancement versions: Python 2.7 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue23986> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
