Monitor a Python job

Ping from any Python scheduler — a plain script, APScheduler, or Celery beat.

A check has a ping URL. Your job calls it on every successful run. If a ping is late past the grace period, CronCanary alerts you. Copy your check's exact URL from its detail page — examples below use $URL.

Plain script

import requests

URL = "$URL"
try:
    requests.get(URL + "/start", timeout=5)
    do_the_work()
    requests.get(URL, timeout=5)            # success
except Exception:
    requests.get(URL + "/fail", timeout=5)  # failure -> alert
    raise

A reusable decorator

import functools, requests

def monitored(url):
    def deco(fn):
        @functools.wraps(fn)
        def wrap(*a, **k):
            requests.get(url + "/start", timeout=5)
            try:
                r = fn(*a, **k); requests.get(url, timeout=5); return r
            except Exception:
                requests.get(url + "/fail", timeout=5); raise
        return wrap
    return deco

@monitored("$URL")
def nightly_report():
    ...

Celery beat

Call the ping at the end of the task body, or wrap the task with the decorator above. Give the check a Cron schedule matching your crontab(...) beat entry.

Ready to wire this up? Create a free check — 20 checks, all alert channels, no card.