title: tkinter math program type error
body: <p>Hi I am making a math program that works with different users and then writes there scores into a config file (.ini) but the thing is when ever I try to do this i get an error saying:</p>
  
  <pre><code>Exception in Tkinter callback
  Traceback (most recent call last):
    File "C:\Program Files\Python33\lib\tkinter\__init__.py", line 1475, in __call__
      return self.func(*args)
    File "C:\Users\Public\Documents\Programming\Math-Bot\Math-Bot.py", line 105, in check
      config[user]['right'] = config[user]['right'] + int(1)
  TypeError: Can't convert 'int' object to str implicitly
  </code></pre>
  
  <p>Here is the code that I use to decide if they got the answer right or wrong:</p>
  
  <pre><code>def check():
      if guess.get().lower() == str(no1 + no2):
          global ri
          answer.set('Right!')
          ri = ri + 1
          right.set(ri)
          config[user]['right'] = config[user]['right'] + int(1)
      else:
          global wa
          answer.set('Wrong, It Was ' + str(no1 + no2))
          wa = wa + 1
          wrong.set(wa)
          config[user]['wrong'] = config[user]['right'] + int(1)
  </code></pre>
  
  <p>Is there anyway I can fix this problem?</p>
  
  <p>Thanks in Advance!</p>