title: tkinter's .pack_propagate() method
body: <p>I am experimenting with Tkinter, as I was trying to figure out is there a way to set the tkinter's  window size without using canvas. I came upon this how to <a href="https://stackoverflow.com/questions/563827/how-do-you-set-a-tkinter-frame-size">set frame size question on SO's Question &amp; Answer</a>. So I went ahead and test it by writing a very small program to display a text label. But I found out it is "missing", or disappear when I use <code>frame.pack_propagate(0)</code></p>
  
  <pre><code>import tkinter as tk
  
  root = tk.Tk()
  frame = tk.Frame(root, width=400, height=400)
  # Does not work at the moment, textBox is missing
  # frame.pack_propagate(0) 
  frame.pack()
  
  textBox = tk.Label(frame, text="(x,y): ")
  textBox.pack()
  
  root.mainloop()
  </code></pre>
  
  <p>So my question is, can you explain why my textBox (Label) is not appearing when I use the <code>frame.pack_propagate(0)</code> instead of <code>frame.pack()</code> method? And secondly, is there a way to set the window size without using a canvas? I want to know because I am writing a series of small programs to teach my friend about tkinter, before introducing canvas to him. It would be nice if the window size are all the same across my tkinter samples. And I am just wondering as well (curious). Thank you very much.</p>
  
  <p>I am using python 3.2.2 on MAC OS 10.5.8.</p>