title: Can you help me fix a logic error in my code where it prints a value the amount of times instead of the product
body: <p>My code is meant to get user input, and then multiply by the value chosen in the drop down menu made up of the dictionary options. However, instead it prints the conversion rate the amount of times that the user enters. </p>
  
  <pre><code>from tkinter import * #Imports everything from the tkinter module
  #Imports everything from the math module
  wall = Tk() #Creates the window
  wall.title('CC V2.1.1.2') #Labels the window with the version number
  var = StringVar(wall)
  global ConR
  ConR = 0
  options = {
      'AU': '1',
      'US': '.77',
      'EU': '.55',
      'Yen': '.011',
      'NZ': '1.25',
  }
  option = OptionMenu(wall, var, *options)#Conversion Rate, default is one (the value that you entered)
  var.set('AU')
  option.pack()
  
  def evaluate(event):
      ConR = options[var.get()]
      print (ConR)
      res.configure(text = "Converted value: $" + (str(eval(entry.get()*ConR))))#Takes the value entered from entry.bind and multiplies it by the currency chosen by the user, and prints it at the bottom of the window
  entry = Entry(wall) #Creates the entry widgit
  entry.bind("&lt;Return&gt;", evaluate)
  entry.pack()
  res = Label(wall)
  res.pack()
  y = Button(text='Quit', command=quit)#An exit button
  y.pack()
  wall.mainloop()
  </code></pre>