Python: Add a key to a dictionary

Python dictionary: Exercise-2 with Solution

Write a Python program to add a key to a dictionary.

Sample Solution:

Python Code:

# Create a dictionary 'd' with two key-value pairs.
d = {0: 10, 1: 20}

# Print the original dictionary 'd'.
print(d)

# Update the dictionary 'd' by adding a new key-value pair {2: 30}.
d.update({2: 30})

# Print the dictionary 'd' after the update, which now includes the new key-value pair.
print(d) 

Sample Output:

{0: 10, 1: 20}                                                                                                
{0: 10, 1: 20, 2: 30} 

Python Code Editor:

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