apscheduler error
I tried to use the apscheduler and used the sample code below from the tutorial, but got the error message: Exception in thread APScheduler (most likely raised during interpreter shutdown). What's going on here? I really appreciate any help! from apscheduler.scheduler import Scheduler sched = Scheduler() sched.start() def some_job(): print "Decorated job" sched.add_interval_job(some_job,minutes=1) -- http://mail.python.org/mailman/listinfo/python-list
Re: apscheduler error
Thank you for all the replies here! I will try your suggestions. On Jan 7, 11:03 pm, Alice Bevan–McGregor wrote: > Howdy! > > On 2011-01-07 17:08:28 -0800, linna li said: > > > I tried to use the apscheduler and used the sample code below from the > > tutorial, but got the error message: Exception in thread APScheduler > > (most likely raised during interpreter shutdown). What's going on here? > > I really appreciate any help! > > After talking a bit with Alex Grönholm it seems this is an issue raised > fairly often (not always in the context of this package) and is not > really a problem with APScheduler. It has far more to do with > attempting to start a thread, then immediately exiting the main thread. > That's not how threading is supposed to be used, so don't do it. ;) > > APScheduler 2.0 adds some improved examples, according to Alex, that > don't suffer the "problem" demonstrated by the short code snippit you > provided. > > A package of mine, TurboMail, suffers from the same threading issue if > used improperly; you enqueue e-mail, it starts a thread, then you > immediately exit. TM tries to work around the issue, but in most cases > that workaround does not work properly. (You get strange uncatchable > exceptions printed on stderr though AFIK the e-mail does get sent > correctly, your application may hang waiting for the thread pool to > drain if you have a "minimum thread count" option set.) > > I hope this clears things up a bit, > > - Alice. -- http://mail.python.org/mailman/listinfo/python-list
Re: apscheduler error
On Jan 7, 11:03 pm, Alice Bevan–McGregor wrote: > Howdy! > > On 2011-01-07 17:08:28 -0800, linna li said: > > > I tried to use the apscheduler and used the sample code below from the > > tutorial, but got the error message: Exception in thread APScheduler > > (most likely raised during interpreter shutdown). What's going on here? > > I really appreciate any help! > > After talking a bit with Alex Grönholm it seems this is an issue raised > fairly often (not always in the context of this package) and is not > really a problem with APScheduler. It has far more to do with > attempting to start a thread, then immediately exiting the main thread. > That's not how threading is supposed to be used, so don't do it. ;) > > APScheduler 2.0 adds some improved examples, according to Alex, that > don't suffer the "problem" demonstrated by the short code snippit you > provided. > > A package of mine, TurboMail, suffers from the same threading issue if > used improperly; you enqueue e-mail, it starts a thread, then you > immediately exit. TM tries to work around the issue, but in most cases > that workaround does not work properly. (You get strange uncatchable > exceptions printed on stderr though AFIK the e-mail does get sent > correctly, your application may hang waiting for the thread pool to > drain if you have a "minimum thread count" option set.) > > I hope this clears things up a bit, > > - Alice. I see the latest version is APScheduler 1.3.1. Where can I get APScheduler 2.0? -- http://mail.python.org/mailman/listinfo/python-list
