thread and processes with python/GTK

Hello,

I'm developping an application with python, pyGTK and GTK+.
I've performed many tests by using methods as Popen, popen2,
os.system ... to communicate with Unix (HPUX),
The last attempt is this code written in a thread :
fin,fout = popen2.popen2('ps -def')
line = fin.readline()
while 1 :
if not line : break
print "line=",line
line = fin.readline()
fin.close()
In that case, lines are printed only when I exit my application.
Usually the behavior is not as expected and I cannot understand why. I
am wondering that it could be a constraint from the use of GTK
(mainloop() existence ???).
Is somebody aware about conflict between GTK use and unix mechanism.

Thanks for you help

Hi,

how do you start the python app? Goes stdout
to a terminal or a pipe?

"python script.py"
and "python script.py | cat" behave different.

Maybe "sys.stdout.flush()" helps you.

BTW, I switched from threads to idle_add for pygtk
applications.

awalter1 wrote:

Hello,

I'm developping an application with python, pyGTK and GTK+.
I've performed many tests by using methods as Popen, popen2,
os.system ... to communicate with Unix (HPUX),
The last attempt is this code written in a thread :
fin,fout = popen2.popen2('ps -def')
line = fin.readline()
while 1 :
if not line : break
print "line=",line
line = fin.readline()
fin.close()
In that case, lines are printed only when I exit my application.
Usually the behavior is not as expected and I cannot understand why. I
am wondering that it could be a constraint from the use of GTK
(mainloop() existence ???).
Is somebody aware about conflict between GTK use and unix mechanism.

Thanks for you help

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