Solution: Contact book

This program stores contact information in a dictionary and then prints a specific phone number.

contacts is a dictionary — a collection of key–value pairs.
- Each key (like "Mom" or "Pizza Place") is a label.
- Each value (like "555-1234") is the information linked to that label.
To get a specific value, you use its key in square brackets:

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Solution: Contact book

This program stores contact information in a dictionary and then prints a specific phone number.

contacts is a dictionary — a collection of key–value pairs.
- Each key (like "Mom" or "Pizza Place") is a label.
- Each value (like "555-1234") is the information linked to that label.
To get a specific value, you use its key in square brackets:

Python

contacts = {
    "Mom": "555-1234",
    "Best Friend": "555-5678",
    "Pizza Place": "555-9999"
}
print("Call Pizza Place at", contacts["Pizza Place"])