Quiz 9: How to work with dictionaries

How many items does the following dictionary contain? flowers = {"red": "rose", "white": "lily", "yellow": "buttercup"}

3

Consider the following code: pets = { "dog": {"type": "poodle", "color": "white"}, "cat": {"type": "Siamese", "color": "black and white"}, "bird": {"type": "parrot", "color": "green"} } pet = pets["dog"] pet = pets["bird"] print(pet["color"], pet["type"]) What will display after the code executes?

NOT white poodle

Each item in a dictionary is

a key/value pair

The key in a dictionary can be

any immutable type

To convert a view object to a list, you can use the To delete all items from a dictionary you can

list() constructor

Consider the following code: pets = { "dog": {"type": "poodle", "color": "white"}, "cat": {"type": "Siamese", "color": "black and white"}, "bird": {"type": "parrot", "color": "green"} } pet = pets["dog"] pet = pets["bird"] print(pet["color"], pet["type"]) Which of the following could you add to the end of this example to print "black and white Siamese cat" to the console?

pet = "cat" print(pets[pet]["color"], pets[pet]["type"], pet)

A dictionary stores a collection of

unordered items

To delete all items from a dictionary you can

use the clear() method

The items() method returns a

view object containing all of the key/value pairs in a dictionary

The keys() method returns a

view object containing all of the keys in a dictionary