add if __name__ == '__main__':

ReblochonMasque · ReblochonMasque · commit acea377a0206 · 2018-05-04T15:07:55.000+08:00
diff --git a/examples/leds.py b/examples/leds.py
@@ -1,29 +1,32 @@
 import tkinter as tk
 import tk_tools
 
-root = tk.Tk()
 
-led = tk_tools.Led(root, size=50)
-led.pack()
+if __name__ == '__main__':
 
-tk.Button(root, text='red', command=led.to_red).pack(fill=tk.X)
+    root = tk.Tk()
 
-tk.Button(root,
-          text='red on',
-          command=lambda: led.to_red(True)).pack(fill=tk.X)
+    led = tk_tools.Led(root, size=50)
+    led.pack()
 
-tk.Button(root, text='green', command=led.to_green).pack(fill=tk.X)
+    tk.Button(root, text='red', command=led.to_red).pack(fill=tk.X)
 
-tk.Button(root,
-          text='green on',
-          command=lambda: led.to_green(True)).pack(fill=tk.X)
+    tk.Button(root,
+              text='red on',
+              command=lambda: led.to_red(True)).pack(fill=tk.X)
 
-tk.Button(root, text='yellow', command=led.to_yellow).pack(fill=tk.X)
+    tk.Button(root, text='green', command=led.to_green).pack(fill=tk.X)
 
-tk.Button(root,
-          text='yellow on',
-          command=lambda: led.to_yellow(True)).pack(fill=tk.X)
+    tk.Button(root,
+              text='green on',
+              command=lambda: led.to_green(True)).pack(fill=tk.X)
 
-tk.Button(root, text='grey', command=led.to_grey).pack(fill=tk.X)
+    tk.Button(root, text='yellow', command=led.to_yellow).pack(fill=tk.X)
 
-root.mainloop()
+    tk.Button(root,
+              text='yellow on',
+              command=lambda: led.to_yellow(True)).pack(fill=tk.X)
+
+    tk.Button(root, text='grey', command=led.to_grey).pack(fill=tk.X)
+
+    root.mainloop()
