Raymond Hettinger <rhettin...@users.sourceforge.net> added the comment:
Suggestions: * new name: assertCountEqual(a, b) or: assertElementCountEqual(a, b) this name captures the essential service: - unordered comparison where duplicates matter - inputs are "elements", not "items" which means key/value pairs * O(n) implementation with O(n**2) fallback: try: a_cnt = collections.Counter(a) b_cnt = collections.Counter(b) except TypeError: # do current O(n**2) fallback else: if a_cnt == b_cnt: # test passed else: in_a_but_not_in_b = a - b in_b_but_not_in_a = b - a # display nice diff * documentation should emphasize the new name: assertElementCountEqual(a, b) obsolete alias: assertItemsEqual(a, b) ---------- assignee: rhettinger -> michael.foord _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue10242> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com