Getting a "Cannot be Opened"" error Message

[Larz60+]

You need a closing parenthesis:

                if (int(score[0]) - int(score[1])) > 0:

also, can't do this:

  try:
      file = open(filename, 'r')
  except:
      print (filename, "Cannot be opened")
  else:

and finally you're indentation seems all messed up

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I take the last bit back, you can have an else clause - but it's not being used properly here