python apscheduler job blocking

[nomadicME]

I'm very inexperienced when it comes to threads in python, and I have a little experience with apscheduler. I thought I understood that each job scheduled through the apscheduler was a separate thread and therefore should not block the progression of the script from which it is scheduled. However, maybe my understanding is not correct because the following program is stopped until the "Hello World" button is pushed (the called gtk application is closed).

Here is the main script:

#! /usr/bin/python

import time

import datetime

from apscheduler.scheduler import Scheduler

import hello

sched = Scheduler()

sched.start()

def notify_popup(text):

        hello.HelloWorld().main()

        print 'still going...'

loop_time = 10

while True:

    now = datetime.datetime.now()

    start_time = now + datetime.timedelta(minutes=1)

    job = sched.add_date_job(notify_popup, start_time, ['text'], misfire_grace_time=loop_time+1)

    print sched.print_jobs()

    time.sleep(loop_time)

The hello module is the HelloWorld script from here (saved as hello.py in the same dir)

I've looked through the apscheduler documentation, but I don't see any discussion of blocking vs non-blocking behavior. They do say that each job is sent to the "thread pool", which leads me to my previously described understanding that each job is a separate thread.

How can I modify this script such that calling the HelloWorld class is not blocking? Thanks.

[Alex Grönholm]

Your problem has nothing whatsoever to do with APScheduler. Understand that HelloWorld.main() runs the gtk event loop which in itself blocks. You also have an infinite loop in the attached script.