Merge Two Dictionaries In Python

Chapter: Python Last Updated: 24-05-2023 17:20:28 UTC

Program:

            /* ............... START ............... */
                
dict1 = {"a": 1, "b": 2}
dict2 = {"c": 3, "d": 4}

dict1.update(dict2)
print(dict1)



## Alternatively, you can use the unpacking operator (**) to merge dictionaries:

dict1 = {"a": 1, "b": 2}
dict2 = {"c": 3, "d": 4}

merged_dict = {**dict1, **dict2}
print(merged_dict)


                /* ............... END ............... */
        

Output

{'a': 1, 'b': 2, 'c': 3, 'd': 4}

Notes:

  • First Example, update() method is used to merge dict2 into dict1. The update() method adds all the key-value pairs from dict2 into dict1. If there are any common keys, the values from dict2 will overwrite the values in dict1.
  • Alternatively, you can use the unpacking operator (**) to merge dictionaries:
  • In second example, the unpacking operator is used to create a new dictionary merged_dict by unpacking the key-value pairs from dict1 and dict2.
  • Both methods produce the same result, merging the contents of the two dictionaries into one.
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