Quellcode gekürzt.

tk_first_steps/traffic_light_simple_mvc.py

@@ -1,12 +1,10 @@
 #!/usr/bin/env python3
-
 from tkinter import *
 from tkinter import ttk
 
 # --------------------------
 # Model
 # --------------------------
-
 class TLight:
     def __init__(self):
         self.colors = {0: "red", 1: "yellow", 2: "green", 3: "yellow"}
@@ -27,7 +25,6 @@ class TLight:
 # --------------------------
 # Controller
 # --------------------------
-
 class TLightController:
     def __init__(self, app):
         self.app = app
@@ -41,11 +38,9 @@ class TLightController:
         color = self.tlight.get_color()
         self.app.change_light_display(color)
 
-
 # --------------------------
 # View / Main Application
 # --------------------------
-
 class TLightApp(Tk):
     def __init__(self):
         super().__init__()