Python - thread and dots as progressbar

import threading
import time

def run_request():
    # simulate long-running request
    time.sleep(10)

#---

subthread = threading.Thread(target=run_request)
subthread.start()

while True:
    if not subthread.is_alive():
        break

    time.sleep(0.5) # to slowdown progressbar
    print('.', end='', flush=True)