title: Python Tkinter button not appearing?
body: <p>I'm new to tkinter and I have this code in python:</p>
  
  <pre><code>#import the tkinter module
  from tkinter import *
  import tkinter
  
  
  calc_window = tkinter.Tk()
  calc_window.title('Calculator Program')
  
  
  button_1 = tkinter.Button(text = '1', width = '30', height = '20')
  button_1 = '1'
  
  calc_window.mainloop()
  </code></pre>
  
  <p>But when I run it, the button doesn't appear. Does anyone know why? Thank you!</p>