title: My Python GUI does not open
body: <p>I just have a short question about my rather simple Python Code. I wanted to create a GUI as you can see, but every time I use the built-in </p>
  
  <pre><code>.grid()
  </code></pre>
  
  <p>function, the GUI window does not open and I dont know why.
  Thank you for the answers</p>
  
  <pre><code>root = Tk()
  
  root.title("Hello World")
  
  label = Label(root, text="Label 1")
  label2 = Label(root, text="Label 2")
  
  
  b = Button(root, text="Hallo")
  b1 = Button(root, text="o")
  b2 = Button(root, text="k")
  b3 = Button(root, text="w")
  b4 = Button(root, text="e")
  b5 = Button(root, text="l")
  b6 = Button(root, text="t")
  b7 = Button(root, text="d")
  b8 = Button(root, text="u")
  
  
  label.grid(row=0, column=0)
  label2.grid(row=0, column=1)
  b.pack()
  b1.pack()
  b2.pack()
  b3.pack()
  b4.pack()
  b5.pack()
  b6.pack()
  b7.pack()
  
  
  root.mainloop()
  </code></pre>