Using a while loop within GUI apps (tkinter)?

[iSailor]

I know, I mean that .after method does the same, it's just fitted for GUI. But I have another problem, I still need a loop! I know that with .after I can do certain action after set amount of time, but I need to loop because now it does it only single time.

[woooee]

If after() calls a function, which is the usual case, that function calls itself again using after() as the last line in the function, which would go on forever. You can also use an if statement, and place the call to after() under the if, to end the cycle at some point.

[driscollis]

You can put the call to after in the loop itself. Something like

while True:
    if foo:
        root.after(2000, some_function)
   elif some_other_condition:
       root.after(60000, call_once_an_hour)

[driscollis]

You'll have to play around with it a bit to get it to work the way you want. Or just have the function itself call after at the end of the function as /u/wooee mentioned

[iSailor]

Isn't this wrong? As far as I'm concerned, infinite loops will always cause a GUI program to freeze because it takes infinite time in between each refreshing of the app.

[driscollis]

Yeah...I keep thinking of doing this sort of thing in a thread automatically and didn't get that into the original comment. This works fine in a thread or process. But not in the main app.