Postprocessing script for cups-pdf

[Raj Kiran Grandhi <grajkiran@gmail.com>]

I have written a PostProcessing script in python for cups-pdf which pops 
up a notification using libnotify and gives the user the option of 
viewing the result. It is working fine, but if the user decides to view 
the file, all the other jobs to the pdf printer are held in queue till 
the viewing application exits.

I have used `gnome-open' to launch the appropriate application. From the 
shell, gnome-open returns immediately, so apparently, cups-pdf is 
waiting till *all* child processes started by the postprocessing script 
exit.

Has anyone run into this problem? Any workarounds?

Thanks,

Raj Kiran Grandhi