Mac daily reminder with Python, Arrow, and a cronjob!

README.txt

1. Install terminal-notifier: https://github.com/julienXX/terminal-notifier
2. Create a virtualenv
3. pip install arrow
4. test code with `env/bin/python daily-notify.py`
5. Set up the cronjob
6. If you want the notifications to be sticky, go to System Preferences > Notifications, and make sure terminal-notifier notifications display as Alerts

cron

# daily reminder at 9am, with full path to virtualenv python and script
0 9 * * * /Users/chrissy/projects/scripts/env/bin/python /Users/chrissy/projects/scripts/daily-notify.py

daily-notify.py

import arrow
import os

end_date = '2020-04-01'


def notify(title='Notification', subtitle='', message='Alert message here'):
    t = '-title {!r}'.format(title)
    s = '-subtitle {!r}'.format(subtitle)
    m = '-message {!r}'.format(message)
    msg = ' '.join([m, t, s])
    os.system(f'/usr/local/bin/terminal-notifier {msg}')


end_date_arrow = arrow.get(end_date)
remain = (end_date_arrow - arrow.now()).days

topic = 'figure out an April Fool\'s Prank'

if remain > 2:
    notify(title='Reminder!',
           message=f'You have {remain} days to {topic}')
elif remain > -1:
    notify(title='WARNING!',
           message=f'You have {remain} days to {topic}')
else:
    notify(title='****OVERDUE****',
           message=f'You have {remain} days to {topic}')