Comments on: Pylons Worker Threads

By: jaux

jaux — Sun, 07 Feb 2010 05:56:01 +0000

@Anil simply change start_myworker() to start_myworker(max_tag_len) and call it in load_environment with appropriate variable. app_globals is a pylons global which is available for pylons threads (the threads pylons creates to handle requests).

By: Anil

Anil — Sun, 29 Nov 2009 15:43:10 +0000

I have imported it. Still no luck. Oh well. Thanks!

from pylons import app_globals
x = app_globals.MAX_TAG_LENGTH
worker = TagMail(x)
worker.start()

By: Chris Moos

Chris Moos — Fri, 27 Nov 2009 02:26:54 +0000

Maybe you need to import app_globals? Pylons right?

By: Anil

Anil — Mon, 23 Nov 2009 04:28:29 +0000

Thanks for the great code! I am having problems with passing variables to the thread though. I keep getting:

No object (name: app_globals) has been registered for this thread

In the start_worker, I have:

worker = TagMail(app_globals.MAX_TAG_LENGTH)
worker.start()

Any help?
Thanks

By: chrismoos

chrismoos — Wed, 04 Mar 2009 21:47:14 +0000

Glad you found it helpful. Also, if you want to pass a SQLAlchemy object into the queue, you will experience thread issues. If you wanted to pass a user into your queue, either pass the individual values you need (user.name, user.username) etc,., or pass (user.id) and then in the thread you query and get the object there.

By: Chris Van

Chris Van — Wed, 04 Mar 2009 10:23:30 +0000

Thanks Chris,

You’ve done three things for me here that I am thankful for, one is show me how to call helper programs from the lib directory, two is a simple example of threading in python, and three is using the built in python queue.

Much appreciated, and very clear too.

Thanks a lot,

Chris.