try.py

# -*- coding: utf-8 -*-
from ratelimit import limits, sleep_and_retry
from time import time

count = 0


@sleep_and_retry
@limits(calls=3, period=5)
def call_api():
    print(f"called! on {time()=} {count=}")


while 1:
    call_api()

called! on time()=1579574892.050764 count=0
called! on time()=1579574892.051442 count=0
called! on time()=1579574892.051451 count=0
called! on time()=1579574897.052951 count=0
called! on time()=1579574897.053015 count=0
called! on time()=1579574897.0530372 count=0
called! on time()=1579574902.0550752 count=0
called! on time()=1579574902.0551832 count=0
called! on time()=1579574902.055276 count=0
called! on time()=1579574907.060375 count=0
called! on time()=1579574907.0604742 count=0
called! on time()=1579574907.0605571 count=0
called! on time()=1579574912.0645068 count=0
called! on time()=1579574912.064673 count=0
called! on time()=1579574912.0647218 count=0
called! on time()=1579574917.067601 count=0
called! on time()=1579574917.067698 count=0
called! on time()=1579574917.067741 count=0

https://github.com/tomasbasham/ratelimit