import perf

class Obj:
    def __int__(self):
        return 5

    def __getitem__(self, key):
        return 6

o = Obj()
if int(o) != 5:
    raise Exception("bug")
if o[100] != 6:
    raise Exception("bug")

runner = perf.Runner()
runner.bench_func('int(o)', int, o)
runner.timeit('o[100]', 'o[100]', globals={'o': o})