Problem with tkinter & spawning processes
effbot at telia.com
Tue Mar 14 17:02:56 CET 2000
nathan <nnever50 at yahoo.com> wrote:
> I've programmed a GUI with Tkinter and I've started it with the
> mainloop() as usual. Now, I want to start a new process from
> the GUI, by pressing a button.
> I've tried with:
> os.system('"C:\Program Files\Python\Python.exe" -i test.py')
> The new process starts fine (standard output on the DOS cmmand
> prompt) nd I cannot do anything more.
> It seems that the new started process blocks the mainloop() thread
the os.system call doesn't return until the new process
> How can avoid this?
this might work:
os.system('start "C:\Program Files\Python\Python.exe" -i test.py')
or you could use os.spawn(os.P_NOWAIT, ...). see
(tweaking that script to support a wait/nowait flag is
left as an exercise for the reader)
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