A meditation reminder app when I'm using the computer

body_reminder.py

# This Python file uses the following encoding: utf-8

import subprocess
import time

breathing_time = 30 # seconds
interval_between_breathing = 25 * 60 # seconds

applescript = """
display dialog "Breathe and make a home of your body" ¬
with title "Breathe" ¬
with icon caution ¬
buttons {"OK"}
"""

def ding():
    subprocess.call("afplay /System/Library/Sounds/Glass.aiff", shell=True)

while True:
    idle_time = int(subprocess.check_output('ioreg -c IOHIDSystem | egrep "HIDIdle" | egrep -o "\d+"', shell=True)) / 1.0e9 # seconds

    if idle_time < 60: # seconds
        subprocess.call("osascript -e '{}'".format(applescript), shell=True)
        ding()
        time.sleep(breathing_time)
        ding()
    time.sleep(interval_between_breathing)