Should I use threads here?
martin.franklin at westgeo.com
Thu Nov 29 11:01:30 CET 2001
Era Akost wrote:
>> This may be true. But the readline() solution *can't* be any worse, and
>> might be better. Readlines() will definitely not return until the called
>> program closes its standard output. Of course, if Era has no access to
>> the program's source he has no possibility of adjusting its output
> Hi all,
> Steve, I tried your suggestion, but that didn't change the situation.
> Let me explain it again. I have a simple GUI with a button
> and a text widget. When I click the button, the following fuction is
> def execute(self, command):
> #command is a string containing the .exe program and its file arguments
> i, o = os.popen2(command)
> while 1:
> line = o.readline()
> if not line:
> self.text.insert(END, line)
> i.close(), o.close()
> Now, the button on the GUI remaines clicked for a while (it seems to me
> all the time that the .exe program is running). And only after that, its
> output is displayed in the text widget.
> But this is not the way the .exe program behaves when it runs on
> its own. During the execution it keeps displaying the results on the
> console. And this is exactly the behaviour that I'd like for my GUI.
> Thus, I asked if threads can do something in this case. Only that I
> don't yet understand how threads work, and so on - therefore I need some
> Again, many thanks
Try calling self.text.update() in the loop.
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