title: Executing a command from OptionMenu
body: <p>Is there a way to make an options menu perform a command from a range of different commands?</p>
  
  <pre><code>from tkinter import *
  #creates 2 windows
  root = Tk()
  popup = Toplevel()
  
  #places frame in popup window
  popup_frame = Frame(popup)
  popup_frame.pack()
  
  #4 functions, text is just placeholder for idea
  def popup1(popup):
      popup_frame.destroy()
      popup_frame = Frame(popup)
      label_popup1 = Label(popup_frame, text="unique textfor popup1")
      popup_frame.pack()
      label_popup1.pack()
  
  def popup2(popup):
      popup_frame.destroy()
      popup_frame = Frame(popup)
      label_popup2 = Label(popup_frame, text="unique text for popup2")
      popup_frame.pack()
      label_popup2.pack()
  
  def popup3(popup):
      popup_frame.destroy()
      popup_frame = Frame(popup)
      label_popup3 = Label(popup_frame, text="unique text for popup3")
      popup_frame.pack()
      label_popup3.pack()
  
  def popup1(popup):
      popup_frame.destroy()
      popup_frame = Frame(popup)
      label_popup4 = Label(popup_frame, text="unique text for popup4")
      popup_frame.pack()
      label_popup4.pack()
  
  #2 option menus offering different selections
  options1 = ["popup1", "popup2"]
  variable1 = StringVar()
  drop_title1 = StringVar(root)
  #sets initial name for widget
  drop_title1.set("Please Choose Options 1 Or 2")
  dropdownmenu1 = OptionMenu(root, drop_title1, *options, command=lambda:func())
  dropdownmenu1.place(x=10, y=10)
  
  options2 = ["popup3", "popup4"]
  variable2 = StringVar()
  drop_title2 = StringVar(root)
  drop_title2 .set("Please Choose Options 3 Or 4")
  dropdownmenu2 = OptionMenu(root, drop_title2, *options, command=lambda:func())
  dropdownmenu2.place(x=100, y=10)
  
  root.mainloop()
  </code></pre>
  
  <p>So there is the root frame with 2 different dropdown menus in it, where if you clicked on say option 1, the popup_frame would be deleted and replaced with the contents of option 1, then from the second drop-down menu, option 4 is selected and the contents of the popup_frame change to what option 4 contains?</p>