Emanuel Barry added the comment: Another way to fix this would be the following:
>>> l=[[''] * 2 for _ in range(3)] >>> l [['', ''], ['', ''], ['', '']] >>> l[0][1] = "A" >>> l [['', 'A'], ['', ''], ['', '']] The * operator on lists doesn't create new elements, it only adds new references to them. A list comprehension will evaluate the expression each time, while repetition (the * operator) will only evaluate it once. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25681> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
