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Practice

Utilizing for Loops with Dictionaries

Using a for loop with a dictionary allows you to sequentially process the keys and values within the dictionary.


Using For Loops with Dictionaries​

When iterating over a dictionary, the items() method allows iteration over both its keys and values.

Next to the for keyword, two variables such as key, value can be used to access the keys and values of the dictionary.

The first variable gets assigned the dictionary's key, while the second receives its value.

Example of Using For Loop with Dictionary
info = {'name': 'CodeBuddy', 'age': 30, 'city': 'New York'}

# Iterate over keys and values of the dictionary
for key, value in info.items():
    # Print each key and value on a separate line
    print(f"{key}: {value}")

By using a for loop with a dictionary, you can handle the keys and values differently based on certain conditions.

Example of Conditional Handling in For Loop with Dictionary
info = {'name': 'CodeBuddy', 'age': 30, 'city': 'New York'}

# Iterate over keys and values of the dictionary
for key, value in info.items():
    # If the key is 'age', add 10 to the value before printing
    if key == 'age':
        print(f"{key}: {value + 10}")
    else:
        # Otherwise, print the key and value as is
        print(f"{key}: {value}")

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