Running a timer object in a separate thread in Python

timer.py

from threading import Thread
import time

class Timer():
    def __init__(self):
        self.time = 0

    def run(self):
        while True:
            self.time += 1
            time.sleep(1)

    def display(self):
        print(self.time)


timer = Timer()
timer_thread = Thread(target=timer.run, daemon=True)
timer_thread.start()

time.sleep(0.5)
while True:
    timer.display()
    time.sleep(1)