# -- coding: utf-8 --
import cProfile
import pstats

class Success:
    def __call__(self):
        pass

class Failure:
    pass

a = Success()
b = Failure()

left_column_width = 35
loop_range = range(5000000)

def test1():
    for x in loop_range:
        if hasattr(a, '__call__'):
            pass

def test2():
    for x in loop_range:
        if callable(a):
            pass

def test3():
    for x in loop_range:
        if hasattr(b, '__call__'):
            pass

def test4():
    for x in loop_range:
        if callable(b):
            pass

test1_profile = cProfile.Profile()
test1_profile.runcall(test1)
test1_profile.print_stats(sort='cumtime')

test2_profile = cProfile.Profile()
test2_profile.runcall(test2)
test2_profile.print_stats(sort='cumtime')

test3_profile = cProfile.Profile()
test3_profile.runcall(test3)
test3_profile.print_stats(sort='cumtime')

test4_profile = cProfile.Profile()
test4_profile.runcall(test4)
test4_profile.print_stats(sort='cumtime')

print('number of loops:'.ljust(left_column_width, ' '), len(loop_range), '\n')

print('a hasattr __call__:'.ljust(left_column_width, ' '), pstats.Stats(test1_profile).total_tt)
print('a is callable:'.ljust(left_column_width, ' '), pstats.Stats(test2_profile).total_tt, '\n')

print('b does not have attr __call__:'.ljust(left_column_width, ' '), pstats.Stats(test3_profile).total_tt)
print('b is not callable:'.ljust(left_column_width, ' '), pstats.Stats(test4_profile).total_tt, '\n')