# decorator.py ==>

import time

def timer(f):
    def tmp(*args, **kwargs):
        t = time.time()
        res = f(*args, **kwargs)
        print ("Время выполнения функции: %f" % (time.time()-t))
        return res

    return tmp

#main.py ==>

from decorators import timer



@timer
def Year(start, end):
    while start <= end:
        if ((start % 4 == 0 and start % 100 != 0) or (start % 400 == 0)):
            print("{} visoc".format(start))
        else:
            print("{} ne visoc".format(start))
        start += 1
print(Year(1000,2000))