Looping over tracks

Let's add the feature that allows users to loop over tracks. We have already defined radio buttons to allow three choices, as shown in the following screenshot:

In essence, the player should provide a choice from the following three options:

• No Loop: Play a track and end there

• Loop Current: Play a single track repeatedly

• Loop All: Looping through the entire playlist, one after another

The decision to follow one of these three options needs to be taken immediately after a particular track ends playing. The best place to judge whether a track has come to its end is from within the periodic updates loop that we created earlier.

Therefore, modify the manage_periodic_updates_during_play() method to add the following two lines of highlighted code (see code 5.08 – view.py):

    def manage_periodic_updates_during_play(self):
        self.update_clock()
        self.update_seek_bar()
        if not self.player.is_playing():
            if self.not_to_loop(): return
        self.root...