Problem with job queue in python telegram bot

Question

y=str("12:50AM")+"+0000"
bot_refresh_time = datetime.strptime(y,'%I:%M%p%z').timetz()
bot_refresh_time=bot_refresh_time.replace(tzinfo = tz)
updater.job_queue.run_once(bot_bal,bot_refresh_time,name="daily_check_task")

The code above executes with out an error, its added to job queue but callback is not called.

while if i change run_once to run_daily, it works perfectly fine ieupdater.job_queue.run_daily(bot_bal,bot_refresh_time,name="daily_check_task")

or

if the time zone is "None"(tzinfo=None) in above code then, run_once work perfectly fine, so i thought the problem is with time zone, but if that's the case then run_daily shouldn't work because they both use datetime.time for time in syntax

syntax for job queue run_once for python telegram bot.

syntax for job queue run_daily for python telegram bot.

Any suggestions or answers would be helpful. i'm just beginner in coding :)

EDIT: run_once works but instead of setting the given time as the timezone(bot_refresh_time=bot_refresh_time.replace(tzinfo = tz)), it converts the time to the given timezone (ie if my timezone is Asia/Kolkata and the given time is 01:00AM, while using using run_once the job executes at 06:30AM IST instead of 01:00AM IST). This problem only occurs when using run_once, there is no problem with run_daily

CallMeStag · Accepted Answer · 2021-04-06 13:21:09Z

1

As of version 13.0, JobQueue can only handle pytz timezones, as PTB uses the library APScheduler for the JobQueue. Note that older versions are no longer supported. A working example for run_once would be:

import datetime as dtm
import pytz

from telegram.ext import Updater

updater = Updater('TOKEN')


def test(_):
    print('running at', dtm.datetime.utcnow())


time = pytz.timezone('Asia/Kolkata').localize(dtm.datetime.now() + dtm.timedelta(seconds=5))
updater.job_queue.run_once(test, time, name="daily_check_task")
updater.start_polling()
updater.idle()

answered Apr 6, 2021 at 13:21

CallMeStag

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1 Comment

Suuuehgi Over a year ago

Thank you! It is still an issue in version 13.5. Wrapping pytz.timezone('<timezone>').localize( ) around my datetime-object fixed run_once! Btw. the timezones can be listed using pytz.all_timezones.

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