[wxPython-users] not able to make two thread together.

[Paul Cornelius]

Naishadh shroff. wrote:
> Hi ,
> I see this link. It is interesting. but still i am not sure how to 
> solve my problem. I am trying. Here i am posting some code. Just look 
> at it.
> #wxpython on  run button event
>
> def OnRun(self,event):
>         print "Before the script start"
>         #This thread class start the back ground script which is 
> generating jpg for panel
>         RunScript().start()
>         print "After the script start"
>         #Sleep time thread initialization and script is costly so it 
> takes some time
>         time.sleep(30)
>         print "After the 30 script start"
>         #Loop that displaying the images
>         for i in range(0, 9):
>             print "loop start",i
>             self.imageFile1="./results/r10001t"+str(i)+".asc.jpg"
>             self.bmp = 
> wx.Image(self.imageFile1,wx.BITMAP_TYPE_JPEG).ConvertToBitmap()
>             self.obj = wx.StaticBitmap(self.panel, -1, self.bmp, 
> (20,20), (580,620))
>             self.obj.Refresh()
>             time.sleep(5)
>             print "loop done",i
>
>
> Now every thing is working fine. But the my wxpython is unresponsive 
> now. N wiered thing is  when i run only script or only loop. The 
> wxpython is working perfectly.
> CONFUSED... big time
> Thanks,
> Naish
>
>
All event handlers run in the same thread.  Therefore you cannot process 
other events (such as clicking on a button, closing the window, typing a 
key, etc.) until you finish processing this one.  That's why your app 
becomes unresponsive while control is inside this event handler.  So you 
need to fork another thread for your long-running process.  Also you 
should not create a new widget (wx.StaticBitmap) in an event handler.  
I'm not sure what will happen when you try this, but it won't be good.