title: Class has no attribute 'tk'
body: <p>I am incredibly new to working with GUIs (and Python in general) so I decided to attempt the hardest thing I could possibly think of in order to learn the code better.  I am designing a game from scratch by myself (it's pretty much a Pokemon rip-off but I have no intention of making any of it publicly available and everything is pulled from open-sources such as bulbapedia).  I'm not having too much trouble with the coreEngine code yet; however, I tried to take a break from the Engine and work on the GUI for a bit.  I decided to use Tkinter, mostly because I don't know anything about GUIs or any other GUI modules in python, and have run into a problem just a few lines in the script.  My code is as follows:</p>
  
  <pre><code>from Tkinter import *
  import battleEngine
  import openingSequence
  from classes import Pokemon
  from classes import movesList
  
  def donothing():
      print "Doesn't do anything."
  
  class gameWindow(Frame):
      def displayMenu(self):
          gameMenu = Menu
          fileMenu = Menu(gameMenu, tearoff=0)
          fileMenu.add_command(label="New Game", command=donothing)
          fileMenu.add_command(label="Load Game", command=donothing)
          fileMenu.add_command(label="Save Game", command=donothing)
          fileMenu.add_command(label="Save Game as...", command=donothing)
          fileMenu.add_command(label="Exit", command=exit())
  
      def __init__(self):
          self.displayMenu()
  
  inGame = gameWindow()
  
  inGame.mainloop()
  </code></pre>
  
  <p>Whenever I call this code, I get the following error:</p>
  
  <pre><code>Traceback (most recent call last):
      File "C:/path/to/file/pokemonGui.py", line 26, in &lt;module&gt;
          inGame = gameWindow()
      File "C:/path/to/file/pokemonGui.py", line 24, in __init__
          self.displayMenu()
      File "C:/path/to/file/pokemonGui.py", line 15, in displayMenu
          fileMenu = Menu(gameMenu, tearoff=0)
      File "C:\Python27\lib\lib-tk\Tkinter.py", line 2642, in __init__
          Widget.__init__(self, master, 'menu', cnf, kw)
      File "C:\Python27\lib\lib-tk\Tkinter.py", line 2027, in __init__
          BaseWidget._setup(self, master, cnf)
      File "C:\Python27\lib\lib-tk\Tkinter.py", line 2005, in _setup
          self.tk = master.tk
  AttributeError: class Menu has no attribute 'tk'
  
  Process finished with exit code 1
  </code></pre>
  
  <p>I'm confident this is simply my lack of understanding with Tkinter and GUIs and Menus; however, I can't seem to figure this out... I'm just trying to create a basic drop-down menu to go across the top of the screen (File, Edit, View, Help, etc...) but I have no clue how to do that...</p>