Dictionaries

A dict maps a key to a value. Keys must be unique and immutable (strings, numbers, tuples).

Three things you'll use constantly

• d[key] — read or write
• d.get(key, default) — read without crashing if missing
• d.items() — iterate over (key, value) pairs

Try it

1. Add three more items to prices.
2. Print the total cost of one of each fruit using sum(prices.values()).