Module 5: Sorting and Dictionaries

Question 1

________ works if we have a list. it will mutate the list to make it sorted. Can put a ______ or ______ inside the brackets.

Answer 1

list.sort()
key
reverse

Question 2

_________ is used if we have any kind of iterable that can be converted to a list. returns a new list containing all the values in order.

Answer 2

sorted(listname,key=/reverse=)

Question 3

______ is a flag meaning its is a bool. It uses the default value _______.If a flag is set it uses value ______ and result is in descending order.

Answer 3

reverse, false, true

Question 4

a _____ function is an optional parameter that is a callable and is used to transform each item then put the original values in order so the transformed values are sorted.

Answer 4

key

Question 5

a ________ means that items that are equal stay in the same order they are already in

Answer 5

stable sort

Question 6

A dictionary represents a _______ from keys to values.

Answer 6

mapping

Question 7

{ } represent ________, dict[ ] = value represents ________, { : } represent _______,
use _______ brackets for dict type

Answer 7

empty dictionary, add items in dictionary, key-value pair between key and colon
square

Question 8

unlike lists dictionaries have no direct way to ________

Answer 8

ask for values by index.

Question 9

using the len function on a dictionary returns ________

Answer 9

number of key-value pairs

Question 10

using the in operator in dictionaries tells you whether something __________ in true or false

Answer 10

appears as a key

Question 11

a ________ is a term for a collection for counters.

Answer 11

histogram

Question 12

to describe a dictionary write _________.

Answer 12

dict[KEYTYPE, VALUETYPE]

Question 13

in dictionaries the order of the keys __________.

Answer 13

does not matter

Question 14

Sorted does not _________ a list, it _________.

Answer 14

mutate
returns a new list

Question 15

Sorted takes any iterable and turns it into a _______.

Answer 15

list

Question 16

For upper or lowercase letters sorted returns ______ first.

Answer 16

uppercase

Question 17

list.sort works on _________, not ________.

Answer 17

list
anything else

Question 18

a ________ is a parameter that is a bool.

Answer 18

flag

Question 19

________ is a function used to determine how many times a letter appears in a string.

Answer 19

str.count()
*type character inside brackets

Question 20

use a for loop to go through _______.

Answer 20

keys

Question 21

To add a new item to a dictionary, assign a ________ using a ________ as index.

Answer 21

new value
new key

Question 22

To change an item, assign a ________ using a ________ as index.

Answer 22

new value
existing key

Question 23

To remove a key:value pair, use _________ using ________.

Answer 23

dict.pop()
existing key

Question 24

Impossible to have same ______, can have many same _______.

Answer 24

key
values