Tkinter widget after method
If your goal is to loop through the list, displaying each line at 1500ms intervals, the easiest way is to have a function that does one iteration and then repeats itself using after
Something like this, perhaps:
def read_ref(self, lines): # remove one item from the list line = lines.pop(0) # insert it self.ref_text.insert("end", line + "\n") # run again in 1500ms if there's still more work to do if lines: self.after(1500, self.read_ref, lines)Then, call this function exactly once to start the process:
self.read_ref(self, self.reference)If you want to be able to stop it, you can check for a flag in your function:
def read_ref(self): ... if self.reference and not self.stop: self.after(1500, self.read_ref)The above code slowly removes items from self.reference. If you don't want that to happen, pass a copy of self.reference when you start so that the function will remove items from a copy of the original data.
self.read_ref(self, self.reference[:])