Python schedule extension to run task on sunset or sunrise

schedule_astro.py

#!/usr/bin/env python3
# This is attempt to mix together python astro and schedule. 
# Author: Andres Kepler <andres@kepler.ee>
import datetime
from astral import LocationInfo
from astral.sun import sun
from schedule import Scheduler as _Scheduler
from schedule import Job as _Job


def job(message="Task"):
    print("I'm working on:", message)


class Job(_Job):
    city = LocationInfo("London", "England", "Europe/London", 51.5, -0.116)
    last_sunrise = None
    last_sunset = None

    def __init__(self, interval, scheduler):
        super().__init__(interval, scheduler)

    def at_sunrise(self):
        s = sun(self.city.observer, date=self.next_run)
        self.last_sunrise = s["sunrise"]
        return self.at(self.last_sunrise.strftime("%H:%M:%S"))

    def at_sunset(self):
        s = sun(self.city.observer, date=self.next_run)
        self.last_sunset = s["sunset"]
        return self.at(self.last_sunset.strftime("%H:%M:%S"))

    def rescedule_astro(self):

       if self.last_sunset:
           self.at_sunset()

       if self.last_sunrise:
           self.at_sunrise()

    def _schedule_next_run(self):
        super()._schedule_next_run()
        self.rescedule_astro()
        
        
class Scheduler(_Scheduler):
    def __init__(self):
        super().__init__()

    def every(self, interval=1):
       """ 
       Schedule a new periodic job.
       :param interval: A quantity of a certain time unit
       :return: An unconfigured :class:`Job <Job>`
       """
       job = Job(interval, self)
       return job


schedule = Scheduler()
schedule.every().friday.at_sunrise().do(job, message="Friday Sunrise")
schedule.every().day.at_sunset().do(job, message="Everyday Sunset")

print(schedule.jobs)
print(schedule.run_all())
print(schedule.jobs)