Yuval Greenfield <ubershme...@gmail.com> added the comment: This isn't a bug and should be closed. It's more of a stack overflow question.
If you'd like to change this fundamental behavior of a very common operation in python you should make a proposal to the python ideas mailing list at http://mail.python.org/mailman/listinfo/python-ideas In your example board_2 is equivalent to: row = [0] * N board_2 = row * N All the rows are the same initial row. As opposed to board_1 where each row is a new row. Try this: [id(i) for i in board_2] The initial equivalence is because they do represent the same values (NxN list of all zeroes). What should python compare if not by values? ---------- nosy: +ubershmekel _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue14719> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
