Serhiy Storchaka added the comment: I concur with Raymond.
But shouldn't we change error messages that contains the repr of not found value? Affected collections are list, deque and range. >>> [].index('spam') Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: 'spam' is not in list >>> import collections >>> collections.deque().index('spam') Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: 'spam' is not in deque range.index() raises different error messages depending on the type of the value: >>> range(10).index('spam') Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: sequence.index(x): x not in sequence >>> range(10).index(42) Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: 42 is not in range ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue13349> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com