title: Why is the program not using information outlined in the code?
body: <pre><code>from tkinter import*
  from tkinter import Tk, StringVar, ttk
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  import random
  import datetime
  import time;
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  start = Tk()
  start.geometry("100x600+0+0")
  start.title ("R.E.D Inventory Control System")
  
  
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  Heading = Frame(start, width = 1000, height = 100, bd = 10, relief = 'raise')
  Heading.pack(side = TOP)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  LowerHeading = Frame(start, width = 500, height  = 100, bd = 20, relief = 'raise')
  LowerHeading.pack(side = BOTTOM)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  LMiddle = Frame(start, width = 500, height = 1000, bd = 12, relief = 'raise')
  LMiddle.pack(side = LEFT)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  RMiddle = Frame(start, width = 500, height = 1000, bd = 12, relief = 'raise')
  RMiddle.pack(side=RIGHT)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  Title = Label(Heading, font=('arial',40,'bold'), text = "R.E.D Inventory Control System", bd = 10, width = 40, anchor = 'w')
            #justify = 'center')
  Title.grid(row=0,column=0)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  info1=IntVar()
  info2=StringVar()
  
  
  info1.set("0")
  info2.set("")
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  def Product():
      if (info1.get()=="ID01"):
          info2.set("Dress")
  
  
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  ProductID = Label(LMiddle, font=('arial',12,'bold'),text = "Product ID", bd = 10, width = 15, anchor = 'w')
  ProductID.grid(row=0,column=0)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  ProductsID = ttk.Combobox(LMiddle, variable = info1 ,state='readonly', font=('arial',12,'bold'),  width =20)
  ProductsID['value']=('','ID01','ID02','ID03','ID04','ID05')
  ProductsID.current(0)
  ProductsID.grid(row=0,column=1)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  Description1 = Label(LMiddle, font=('arial',12,'bold'),text ="Description", bd = 10, width = 15, anchor = 'w')
  Description1.grid(row=2,column=0)
  Description2 = Label(LMiddle, font=('arial',12,'bold'), variable = info2, bd = 10, width = 18, relief = 'sunken')
  Description2.grid(row=2,column=1)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  DateStockBought1 = Label(LMiddle, font=('arial',12,'bold'), text ="Date Stock Bought", bd = 10, width = 15, anchor = 'w')
  DateStockBought1.grid(row=3,column=0)
  DateStockBought2 = Label(LMiddle, font=('arial',12,'bold'), bd = 10, width = 18, relief = 'sunken')
  DateStockBought2.grid(row=3,column=1)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  Price1 = Label(LMiddle, font=('arial',12,'bold'), text ="Price", bd = 10, width = 15, anchor = 'w')
  Price1.grid(row=4,column=0)
  Price2 = Label(LMiddle, font=('arial',12,'bold'), bd = 10, width = 18, relief = 'sunken')
  Price2.grid(row=4,column=1)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  AmountLeft1 = Label(RMiddle, font=('arial',12,'bold'), text ="Amount Left", bd = 10, width = 15, anchor = 'w')
  AmountLeft1.grid(row=1,column=0)
  AmountLeft2 = Label(RMiddle, font=('arial',12,'bold'), bd = 10, width = 18,     relief = 'sunken')
  AmountLeft2.grid(row=1,column=1)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  CurrentSeason1 = Label(RMiddle, font=('arial',12,'bold'), text ="CurrentSeason", bd = 10, width = 15, anchor = 'w')
  CurrentSeason1.grid(row=2,column=0)
  CurrentSeason2 = Label(RMiddle, font=('arial',12,'bold'), text = "", bd = 10, width = 18, relief = 'sunken')
  CurrentSeason2.grid(row=2,column=1)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  Discount1 = Label(RMiddle, font=('arial',12,'bold'), text ="Discount", bd = 10, width = 15, anchor = 'w')
  Discount1.grid(row=3,column=0)
  Discount2 = Label(RMiddle, font=('arial',12,'bold'), bd = 10, width = 18, relief = 'sunken')
  Discount2.grid(row=3,column=1)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  NewPrice1 = Label(RMiddle, font=('arial',12,'bold'), text ="New Price", bd = 10, width = 15, anchor = 'w')
  NewPrice1.grid(row=4,column=0)
  NewPrice2 = Label(RMiddle, font=('arial',12,'bold'), bd = 10, width = 18, relief = 'sunken')
  NewPrice2.grid(row=4,column=1)
  #-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------#
  
  start.mainloop()
  </code></pre>
  
  <p>So, the above code is supposed to be a stock management system that uses data within the code to allow the manager to change prices based on what season the product is and what season it is currently. So far i have recieved the error that this cannot be done. </p>
  
  <p>It is the following:</p>
  
  <pre><code>Traceback (most recent call last):
      File "C:\Users\****\Documents\****\****\****\****\Inventory (new).py", line 46, in &lt;module&gt;
      ProductsID = ttk.Combobox(LMiddle, variable = info1 ,state='readonly', font=('arial',12,'bold'),  width =20)
    File "C:\Python34\lib\tkinter\ttk.py", line 703, in __init__
  Entry.__init__(self, master, "ttk::combobox", **kw)
    File "C:\Python34\lib\tkinter\ttk.py", line 665, in __init__
  Widget.__init__(self, master, widget or "ttk::entry", kw)
    File "C:\Python34\lib\tkinter\ttk.py", line 553, in __init__
  tkinter.Widget.__init__(self, master, widgetname, kw=kw)
    File "C:\Python34\lib\tkinter\__init__.py", line 2122, in __init__
  (widgetName, self._w) + extra + self._options(cnf))
  _tkinter.TclError: unknown option "-variable"
  </code></pre>
  
  <p>I would appreciate any help </p>