Demo tkinter app

.gitignore

@@ -15,3 +15,6 @@
 #Whitelist c files inside subdirectories
 !**/*.c
 !**/*.h
+
+#Whitelist python files inside subdirectories
+!**/*.py
\ No newline at end of file

software/smartwatch.py

+import tkinter as tk
+
+class Application(tk.Frame):
+    def __init__(self, master=None):
+        super().__init__(master)
+        self.master = master
+        self.pack()
+        self.create_widgets()
+
+    def create_widgets(self):
+        self.hi_there = tk.Button(self)
+        self.hi_there["text"] = "Hello World\n(click me)"
+        self.hi_there["command"] = self.say_hi
+        self.hi_there.pack(side="top")
+
+        self.quit = tk.Button(self, text="QUIT", fg="red",
+                              command=self.master.destroy)
+        self.quit.pack(side="bottom")
+
+    def say_hi(self):
+        print("hi there, everyone!")
+
+root = tk.Tk()
+app = Application(master=root)
+app.mainloop()
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