new_contents: D = {'a': 0, 'b': 1, 'c': 2}
  # Attempting to access a key that does not exist
  # will result in a KeyError Exception
  try:
      D['d']
  except KeyError as err:
      print('KeyError for', err)
  # Assign to a non-existing key (will create entry)
  D['d'] = 'spam'
  print(D)
  # For Lists cannot assign to a non-existing index
  L = ['a', 'b', 'c']
  try:
      L[3] = 'd'
  except IndexError as err:
      print('IndexError ', err)
subject: Add Q6 for Section II