[PyQt] multiprocessing with QApplication

Kovid Goyal kovid at kovidgoyal.net
Wed Jun 13 12:53:01 BST 2012

On Mon, Jun 11, 2012 at 01:59:35PM -0400, Luke Campagnola wrote:
> I agree with you about the multiprocessing package--I really only use it
> for the ease of passing python objects between processes. (I use
> multiprocessing.Pipe(), which I believe uses the Listener/Client system you
> mentioned). I'll definitely try using this with subprocess instead. Thanks
> for the EINTR warning; I'm sure that would have taken another hour or two
> for me to work out :)

That's interesting, how are you using Pipe? More specifically, how are
you passing a Connection object to the worker process? Connection
objects cannot be unpickled, at least in python 2.7, see:



Dr. Kovid Goyal 
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