Raymond Hettinger added the comment: Per PEP-8, the Python preferred-style is, "For sequences, (strings, lists, tuples), use the fact that empty sequences are false."
Yes: if not seq: if seq: No: if len(seq): if not len(seq): The Python libraries are not obliged to defend themselves against non-sensical types (i.e. defining an empty iterator as a subclass of list and returning a non-zero len). I recommend leaving the code as-is and closing a "not a bug". In a way, this report is no more interesting than observing that a __hash__ that returns a random value on each call doesn't work well in a dictionary. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27613> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com