old_contents: def check_argv(argv):
      """Check if arguments are ok.
  
      When executing, there must be argument switch for test/live.
      There also must be filename.
      Method returns set(is_correct, filename, is_test)
      """``
      python_file_name = argv[0]
      usage_msg = "Usage: python %s [-test | -live] filename.txt" % python_file_name
      is_test = True
  
      if len(argv) > 1:
          if '-test' in argv:
              is_test = True
          elif '-live' in argv:
              is_test = False
          else:
              print usage_msg
              return (False, None, is_test)
  
          if len(argv) < 3:
              print usage_msg
              return (False, None, is_test)
          else:
              filename = argv[2]
              return (True, filename, is_test)
      else:
          print usage_msg
          return (False, None, is_test)
  
new_contents: def check_argv(argv):
      """Check if arguments are ok.
  
      When executing, there must be argument switch for test/live.
      There also must be filename.
      Method returns set(is_correct, filename, is_test)
      """
      python_file_name = argv[0]
      usage_msg = "Usage: python %s [-test | -live] filename.txt" % python_file_name
      is_test = True
  
      if len(argv) > 1:
          if '-test' in argv:
              is_test = True
          elif '-live' in argv:
              is_test = False
          else:
              print usage_msg
              return (False, None, is_test)
  
          if len(argv) < 3:
              print usage_msg
              return (False, None, is_test)
          else:
              filename = argv[2]
              return (True, filename, is_test)
      else:
          print usage_msg
          return (False, None, is_test)
  
subject: Remove forgotten comment quotation marks