title: Frame resizing issue in Tk/ttk python
body: <p>I'm creating a GUI using Tkinter/ttk in Python 2.7, and I'm having an issue where a Frame will resize itself once a widget is placed inside of it. I am new to Python and haven't used Tkinter before. </p>
  
  <p>example:  </p>
  
  <pre><code>ROOT = Tk()
  FRAME = ttk.Frame(ROOT, width=300, height=300, relief='groove')
  FRAME.grid()
  ROOT.mainloop()
  </code></pre>
  
  <p>will produce a grooved frame 300x300, if i place a widget inside it like so:</p>
  
  <pre><code>ROOT = Tk()
  FRAME = ttk.Frame(ROOT, width=300, height=300, relief='groove')
  BUTTON = ttk.Button(FRAME, text="DON'T READ THIS TEXT")
  FRAME.grid()
  BUTTON.grid()
  ROOT.mainloop()  
  </code></pre>
  
  <p>the frame will shrink down to fit the button. Any way to force the frame not to resize?</p>