Dictionaries Part II -- Examples

• Creating

  >>> some_dict = {'spam' : 1, 'eggs' : ['foo', 'bar']}
  >>> cached_add_args = {(1, 1) : 2}

• Adding and removing key:value pairs

  >>> cached_add_args[(4, 8)] = 12
  >>> cached_add_args[(4, 8)]
  12
  >>> del cached_add_args[(4, 8)]

• Useful methods

  >>> some_dict.keys()
  ['eggs', 'spam']
  >>> some_dict.values()
  [['foo', 'bar'], 1]
  >>> some_dict.items()
  [('eggs', ['foo', 'bar']), ('spam', 1)]
  >>> cached_add_args.has_key((2, 2))
  0
  >>> cached_add_args[(2, 2)] = 4
  >>> cached_add_args.has_key((2, 2))
  1