Unit 14

Question 1

14.2 - Dictionary Methods

What does xdict.clear() do?

Answer 1

removes all items from the dictionary

Question 2

14.2 - Dictionary Methods

What does xdict.get(key, def) do?

Answer 2

finds val of key, if none returns def

Question 3

14.2 - Dictionary Methods

What does xdict.update(ydict) do?

Answer 3

merges dictionaries, overwrites duplicate keys

Question 4

14.2 - Dictionary Methods

What does xdict.pop(key, def) do?

Answer 4

removes key from dict, returns def if nonexistant

Question 5

14.3 - iterating Over a Dictionary

What is a hash?

Answer 5

an int representing a key/value pair for quick lookup

Question 6

14.3 - iterating Over a Dictionary

What does xdict.items() do?

Answer 6

displays keys & values as tuples

Question 7

14.3 - iterating Over a Dictionary

What does xdict.keys() do?

Answer 7

displays keys

Question 8

14.3 - iterating Over a Dictionary

What does xdict.values() do?

Answer 8

displays values

Question 9

14.4 - Dictionary Nesting

What is data structure?

Answer 9

a method of organizing data in a logical and cohesive fashion