Update hello_tkinter.py

Added additional tk and ttk elements for testing.

Author: maxschnadt

Chapter01/hello_tkinter.py

@@ -1,12 +1,14 @@
 """Hello World application for Tkinter"""
 
 
-from tkinter import *
-from tkinter.ttk 
-import *
+import tkinter as tk
+from tkinter import ttk
 
-root = Tk()
-
-label = Label(root, text="Hello World")
+root = tk.Tk()
+label = ttk.Label(root, text="Hello World")
+button = ttk.Button(root, text="Lick to join")
+entry = ttk.Entry(root, text="Test me!")
 label.pack()
+button.pack()
+entry.pack()
 root.mainloop()