Kivy - Automatically Start A Method From Popup

PROBLEM I am using Python3 and Kivy2. Regardless I would like a popup to automatically start a time consuming method in the background DESCRIPTION In the script call for the popup

Solution 1:

Using the join() method of a Thread causes a wait until that Thread has completed, which is almost equivalent to not using threading.

Try eliminating thread t1, and just call popup without using a new thread for that. Then start thread t2, but eliminate the t2.join() call.

Solution 2:

ANSWER

The answer proposed @John Anderson was helpful. The join method causes an undesired wait.

First I tried to run the def popup method as the lead and the time_consuming_method as a thread. This approach did not solved the problem.

NOT WORKING CODE

defpopup(self, boxTitle, boxLabel):    # popup for showing the activity
        self.MessageBoxTitle = boxTitle
        self.MessageBoxLabel = boxLabel
        self.popup = ActivityBox(self)
        self.popup.open()
    
    self.popup(boxTitle, boxLabel)
    t2 = threading.Thread(target = time_consuming_method)
    t2.start()

Then I tried running self.popup.open() method as the lead and the the time_consuming_method as a thread from inside the def popup method. This solution worked out fine, the popup appears when the method starts.

WORKING CODE

defpopup(self, boxTitle, boxLabel):    # popup for showing the activity
        self.MessageBoxTitle = boxTitle
        self.MessageBoxLabel = boxLabel
        self.popup = ActivityBox(self)
        self.popup.open()                   # call the popup    
        t2 = threading.Thread(target = time_consuming_method)    # define the thread
        t2.start()    # start the thread