Serhiy Storchaka added the comment: CPython:
$ python3.4 -m timeit -s 'f = lambda kv: kv[0]' -s 's = list(dict.fromkeys(range(1000)).items())' -- 'sorted(s, key=f)' 1000 loops, best of 3: 904 usec per loop $ python3.4 -m timeit -s 'import operator' -s 'f = operator.itemgetter(0)' -s 's = list(dict.fromkeys(range(1000)).items())' -- 'sorted(s, key=f)' 1000 loops, best of 3: 462 usec per loop PyPy: $ pypy -m timeit -s 'f = lambda kv: kv[0]' -s 's = list(dict.fromkeys(range(1000)).items())' -- 'sorted(s, key=f)' 1000 loops, best of 3: 1.23 msec per loop $ pypy -m timeit -s 'import operator' -s 'f = operator.itemgetter(0)' -s 's = list(dict.fromkeys(range(1000)).items())' -- 'sorted(s, key=f)' 1000 loops, best of 3: 1.27 msec per loop ---------- nosy: +serhiy.storchaka _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue23493> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
