Python Program to Merge Two Dictionaries – 2022

Machine Learning Projects

Hey guys, in this blog we will see a Python Program to Merge Two Dictionaries.

Example 1: Using the | Operator

# Python Program to Merge Two Dictionaries

dict_1 = {1: 'a', 2: 'b'}
dict_2 = {2: 'c', 4: 'd'}

print(dict_1 | dict_2)

Output

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

We have used “|” operator to find the Union of the two dictionaries.

Example 2: Using the ** Operator

# Python Program to Merge Two Dictionaries

dict_1 = {1: 'a', 2: 'b'}
dict_2 = {2: 'c', 4: 'd'}

print({**dict_1, **dict_2})

Output

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

Here we have used “**” to merge two dictionaries here. “**dict1” will print all the content of dict1 and similarly for dict2.

Example 3: Using copy() and update()

# Python Program to Merge Two Dictionaries

dict_1 = {1: 'a', 2: 'b'}
dict_2 = {2: 'c', 4: 'd'}

dict_3 = dict_2.copy()
dict_3.update(dict_1)

print(dict_3)

Output

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

Simply using dict.update() method to update a dictionary with another dictionary.

Check out our other python programming examples

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