[Twisted-Python] Simple app pickle issue when stopping

Alexander May alex-news at comcast.net
Sat May 15 19:43:22 EDT 2004

Thank you.  Soon, I'll be attaching to a database, and the pickling stuff
won't matter, so I'll use the -o flag as you suggest.

Anyone have any experience with gadfly and using it with twisted?  I'm
prototyping so I'm tempted to give it a try and avoid setting up a real
database (not that gadfly isn't real).  And while I'm off subject, anyone
have a suggestion for integrating authorization with windows (and probably
Linux down the road)? I'm reading the docs...


-----Original Message-----
From: twisted-python-bounces at twistedmatrix.com
[mailto:twisted-python-bounces at twistedmatrix.com] On Behalf Of
exarkun at divmod.com
Sent: Saturday, May 15, 2004 4:34 PM
To: Twisted discussion stuff
Subject: Re: [Twisted-Python] Simple app pickle issue when stopping

On Sat, 15 May 2004 15:14:49 -0400, "Alexander May" <alex-news at comcast.net>
>Still trying to learn/understand twisted.  Mind exploding/getting
frustrated.  I created this very simple app:
> [snip]

  Instances are pickled by saving the name of their class and their
associated state.  Since the SimpleResource class isn't defined in a real
module, instances of it cannot be pickled (its name is a lie).  Move the
class definition into a real module, then import it from your tac file.  The
pickle problems should go away.
  Also, if pickling isn't important, you can just pass the -o flag to twistd
and the application will not be saved on shutdown.


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