Make your computer chime

python_chime.py

import sched
import time
import datetime
import subprocess


event_schedule = sched.scheduler(time.time, time.sleep)


def subprocess_say(msg):
    startinfo = subprocess.STARTUPINFO()
    startinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
    iret=subprocess.run(["say", msg],
                   stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
                   startupinfo=startinfo)
    return iret

def chime_now():
    """
    Simple program that chimes or tells the time when

    author:Sukhbinder
    """
    now = datetime.datetime.now()
    minute = now.minute
    if minute in [0, 30, 55]:
        hour = now.hour if now.hour <= 12 else now.hour - 12
        if minute == 0:
            msg = "Its {} O clock".format(hour)
        if minute == 30:
            msg = "Its half past {}".format(hour)
        if minute == 55:
            msg = "It is {0} {1} ".format(hour, minute)
        iret = subprocess_say(msg)
    
    event_schedule.enter(60, 1, chime_now, ())


if __name__ == "__main__":
    event_schedule.enter(10, 1, chime_now, ())
    event_schedule.run()