Python-сообщество

>>> print(timeit.timeit('True in [isinstance(d, dict) for d in a]', 'a = [0] * 10 + [{}]'))
10.806834036965029
>>> print(timeit.timeit('dict in map(type, a)', 'a = [0] * 10 + [{}]'))
2.8347205790801127
>>> print(timeit.timeit('dict_in_tuple(a)', '''
def dict_in_tuple(tpl):
    for i in tpl:
        if isinstance(i, dict):
            return True
    return False
a = [0] * 10 + [{}]'''))
7.836950581622432

import timeit
print(timeit.timeit('True in (isinstance(d, dict) for d in a)', 'a = [0] * 100 + [{}]'))
print(timeit.timeit('dict in (type(d) for d in a)', 'a = [0] * 100 + [{}]'))  # !!!!!!!!!!!!!!!!
print(timeit.timeit('dict_in_tuple(a)', '''
def dict_in_tuple(tpl):
    for i in tpl:
        if type(i) == dict:  # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
            return True
    return False
a = [0] * 100 + [{}]'''))

51.6623192855579
23.122650626727598
23.906970548591914