Vinay Sajip added the comment: I wouldn't say it is a bug, as it is working as documented - though you might say it is a request for enhancement. The documentation for string formatting at
https://docs.python.org/2/library/stdtypes.html#string-formatting-operations says that the argument should be a "single mapping object", and, further down the same page at https://docs.python.org/2/library/stdtypes.html#mapping-types-dict it's clear that the mapping protocol is more than just __getitem__. Although perhaps currently only __getitem__ is used, who's to say that such will always remain the case? Removing Python versions 3.2, 3.3 (security fixes only). ---------- versions: -Python 3.1, Python 3.2, Python 3.3 _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue21172> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
