Every minute on the minute

[claygorman]

Hello,

I am not seeing a way to do it on the minute every minute. Is there a way to do that?

* * * * * is the cron equivilent

[PvtHaggard]

import schedule
import time

def job():
    print("Running job: " + time.asctime())

def wait():
    while int(time.time()) % 60 != 0:
        pass
    print("End wait: {}".format(time.asctime()))

wait()
schedule.every(1).minutes.do(job)

while True:
    schedule.run_pending()
    time.sleep(1)

This will do what you are wanting. wait() simply stalls the program until the time is 0 seconds and then goes on to schedules the jobs.

The output from the short time I was running it.

End wait: Fri Oct  6 03:13:00 2017
Running job: Fri Oct  6 03:14:00 2017
Running job: Fri Oct  6 03:15:00 2017
Running job: Fri Oct  6 03:16:00 2017
Running job: Fri Oct  6 03:17:00 2017
Running job: Fri Oct  6 03:18:00 2017

[rokcarl]

This doesn't work for real life circumstances. As soon as you start adding delays (e.g. time.sleep(7) inside the job() function) to simulate real life activity (database access, 3rd party services), this doesn't run on the minute (0 seconds) anymore:

End wait: Mon Jul  9 16:28:00 2018
Running job: Mon Jul  9 16:29:00 2018
Running job: Mon Jul  9 16:30:07 2018

[chinkan]

Hi, I have similar issue here. I just set a scheduler run by every minute. Here is the result

scheduler run... 2018-07-22 13:20:00.559519
scheduler run... 2018-07-22 13:21:00.632520
scheduler run... 2018-07-22 13:22:00.704910
scheduler run... 2018-07-22 13:23:00.778596
scheduler run... 2018-07-22 13:24:00.852522
scheduler run... 2018-07-22 13:25:00.923478
scheduler run... 2018-07-22 13:26:00.995238
scheduler run... 2018-07-22 13:27:01.065289 <--------------
scheduler run... 2018-07-22 13:28:01.137599
scheduler run... 2018-07-22 13:29:01.209585
...
...
scheduler run... 2018-07-22 15:28:09.683525 <--------------

after run it some time, the schedule job is not fire on 00 second.
how can I make it keep run on every xx:00 without delay? Thanks!

Here is my testing code

import time
import schedule
import datetime

def startScheduler():
    now = datetime.datetime.now()
    delay = 60 - now.second
    time.sleep(delay)
    schedule.every(1).minutes.do(run)
    while 1:
        schedule.run_pending()
        time.sleep(1)

def run():
    now = datetime.datetime.now()
    print("scheduler run...", now)

startScheduler()

[chinkan]

After keep run it overnight, it totally delay to 42 sec
scheduler run... 2018-07-23 09:55:42.276265
How can I ensure the job will fire only on 00 second every minutes? Thanks!

[fhchl]

This seems to come from these lines, where the next run is scheduled after the current job is run on the basis of the job-interval time and the current time.

I would also love the functionality of precise scheduling using the interval syntax, but this does not seem to be a priority of this library. Even if one would exchange the call to job_func and schedule_next_run, the run times will drift as the scheduling is happening with relative and not absolute timings.

[WoLfulus]

Start a thread (and don't wait for it) on the job function, so it won't block the scheduler thread.
But be aware that depending on how much time the job takes to finish, you'll see jobs running concurrently and you'll need to manage race conditions.