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  1. my_dict = {'a': 1, 'b': 2, 'c': 1, 'd': 3}
  2. value_keys = {}
  3. for key, value in my_dict.items():
  4. value_keys.setdefault(value, key)
  5. print(dict(map(reversed, value_keys.items())))
Success #stdin #stdout 0.04s 9576KB
stdin
Standard input is empty
stdout
{'a': 1, 'b': 2, 'd': 3}