Question

3

Thread works only on gui events - pygtk

rated 0 times [ 3] [ 0] / answers: 1 / hits: 704 / 3 Years ago, wed, may 26, 2021, 8:53:46

I am developing a multithreaded application in pygtk using quickly and stuck with threads. So I am experimenting with various possibilities and found out that my thread work only when I do something in the gui Here is my code

t = threading.Thread(target=self.calc,args=(treeiter))

t.daemon = True

t.start()



    def calc(self,treeiter):

        store=self.builder.get_object('liststore1')

        per=0

        while 1:

            print "Calcing and changing percent,per="+str(per)

            tore.set_value(treeiter,4,str(int(per))+"%")

            per+=1

            time.sleep(1)

I am trying to update the value in a liststore by thread but it only get update when I click some button or some other gui events why is that so? why is the thread not running in the background?

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asketbridiculou

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1 Year ago

answered 3 Years ago aciousoun · Accepted Answer

Using time.sleep() is not a good idea when you are using gtk. You could try use a timer event. (I don't use quickly anymore but this should work i think.)

from gi.repository import GLib



class Just_for_correct_coding():

    self.per = int()



    def start(self):

        GLib.timeout_add_seconds(1, self.calc)



    def calc(self,treeiter):

        store=self.builder.get_object('liststore1')

        print "Calcing and changing percent,per="+str(self.per)

        tore.set_value(treeiter,4,str(int(self.per))+"%")

        self.per+=1

        return True #important if you want to keep the timer running