title: Python: Get checkbutton value
body: <p>I'm trying to create a simple .bin editor, but I can into a problem very early on.  I can't figure out how to get the value of each checkbutton.  As you see, I am trying to keep the code as condensed as possible by using a class to create all the checkbuttons.</p>
  
  <p>Right now all I am trying to do is get the "saveSave" function to print out if the box is checked or not so that I can later use it in an if...else statement.</p>
  
  <pre><code>try: #Python 2 imports
      from Tkinter import *
      import ttk
      import tkFileDialog as filedialog
  
  except ImportError: #Python 3 imports
      from tkinter import *
      from tkinter import ttk
      from tkinter import filedialog
  
  def openSave():
      file = filedialog.askopenfilename()
  
  def saveSave():
      print MaxMP.get()
  
  
  class CB(Frame):
     def __init__(self, parent=None, cheater=""):
        Frame.__init__(self, parent)
        self.var = BooleanVar()
        rawr = Checkbutton(self, text=cheater, variable=self.var, onvalue=1, offvalue=0, bg="white", command=self.saveSave)
        rawr.pack()
        self.grid(sticky='w', columnspan=2)
  
  pmdxse = Tk()
  pmdxse.title("Project Mirai DX Save Editor")
  pmdxse.configure(bg="white", padx=10, pady=10)
  pmdxse.resizable(width=False, height=False)
  
  Button(pmdxse, text="Open", command=openSave).grid(row=0, column=0)
  Button(pmdxse, text="Save", command=saveSave).grid(row=0, column=1)
  MaxMP = CB(pmdxse, 'Max MP')
  MaxSnacks = CB(pmdxse, 'Max Snacks')
  MaxHighscore = CB(pmdxse, 'Max Highscore')
  MaxPerfentage = CB(pmdxse, 'Max Percentage')
  MaxCombo = CB(pmdxse, 'Max Combo')
  UnlockSongs = CB(pmdxse, 'Unlock all Songs')
  UnlockHard = CB(pmdxse, 'Unlock Hard/Super Hard Modes')
  UnlockItems = CB(pmdxse, 'Unlock all Items in the Shop')
  UnlockOutfits = CB(pmdxse, 'Unlock all Outfits')
  UnlockStamps = CB(pmdxse, 'Unlock all 115 Stamps')
  UnlockProfileOptions = CB(pmdxse, 'Unlock all Profile Options')
  MaxRank = CB(pmdxse, 'Set each song to \"Prefect\" rank')
  BuyItems = CB(pmdxse, 'Buy all Items')
  BuyOutfits = CB(pmdxse, 'Buy all Outfits')
  
  
  pmdxse.mainloop()
  </code></pre>