Day 96: Python Program to Concatenate Two Dictionaries

 

dict1 = {'a': 1, 'b': 2}

dict2 = {'c': 3, 'd': 4}

dict1.update(dict2)

print("Concatenated Dictionary:", dict1)

#source code --> clcoding.com 

Code Explanation:

Define Two Dictionaries:

dict1 = {'a': 1, 'b': 2}

dict2 = {'c': 3, 'd': 4}

dict1 and dict2 are dictionaries with key-value pairs.

dict1 has keys 'a' and 'b' with values 1 and 2, respectively.

dict2 has keys 'c' and 'd' with values 3 and 4.

Merge Dictionaries:

dict1.update(dict2)

The update() method updates dict1 by adding key-value pairs from dict2.

If a key in dict2 already exists in dict1, the value from dict2 will overwrite the one in dict1.

After this operation, dict1 will contain all key-value pairs from both dict1 and dict2.

Print the Result:

print("Concatenated Dictionary:", dict1)

This prints the updated dict1, showing that it now includes the contents of dict2 as well.

Output:

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

The output confirms that dict1 now contains all key-value pairs from both dictionaries.

Key Points:

The update() method is an in-place operation, meaning it modifies dict1 directly.

If you need a new dictionary without modifying the originals, you can use the ** unpacking method:

combined_dict = {**dict1, **dict2}