demo of waiting for a condition

wait_for_demo.py

import time
from random import randint


def demo():
    foo = randint(0, 100)
    print(f"int is {foo}")
    return foo % 5 == 0

def _wait_for(condition_func, interval=0.5, max_time=15):
    started_at = time.time()
    while time.time() < started_at + max_time:
        done = condition_func()
        if done:
            print('we made it')
            return
        else:
            print('not yet')
            time.sleep(interval)
    print('It took too long so we stopped')

_wait_for(demo)