函数执行时间

import contextlib
import threading
import time


class TimeoutException(Exception):
    pass


def raise_exception():
    raise TimeoutException("Time out")


@contextlib.contextmanager
def time_limit(seconds: float):
    timer = threading.Timer(seconds, lambda: raise_exception())
    try:
        timer.start()
        yield
    finally:
        timer.cancel()


@time_limit(10)
def test(t):
    print(t)
    time.sleep(t)


for i in range(8, 14):
    test(i)