How to call application in the background with

Kushal Kumaran kushal.kumaran+python at
Thu Apr 8 16:29:32 CEST 2010

On Thu, Apr 8, 2010 at 7:39 PM, jorma kala <jjkk73 at> wrote:
> Hi,
> I'd like to call an external application (firefox) from a python program (a
> PyQT GUI), but I want the external application to run in the background, I
> mean I do not want my python calling program to wait till the external
> subprocess terminates.
> I've tried this:
> call(["firefox", ""])
> but my PyQT interface freezes until I terminate Firefox.
> Is there any parameter I need to use with call so that the python calling
> program doesn't wait for the termination of the subprocess?

Use subprocess.Popen instead of directly using


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