Chapter 8: Lists

Question 1

A circumstance where two or more variables refer to the same object.

Answer 1

aliasing

Question 2

A character or string used to indicate where a string should be split.

Answer 2

delimiter

Question 3

One of the values in a list (or other sequence); also called items.

Answer 3

element

Question 4

Having the same value.

Answer 4

equivalent

Question 5

An integer value that indicates an element in a list.

Answer 5

index

Question 6

Being the same object (which implies equivalence).

Answer 6

identical

Question 7

A sequence of values.

Answer 7

list

Question 8

The sequential accessing of each element in a list.

Answer 8

list traversal

Question 9

A list that is an element of another list.

Answer 9

nested list

Question 10

Something a variable can refer to. Has a type and a value.

Answer 10

object

Question 11

the relationship between indices and elements
eg. in a list

Answer 11

mapping

Question 12

error type when you try to read or write an element that doesn’t exist

Answer 12

IndexError

Question 13

for loop function that iterates through the number of times specified by an integer

Answer 13

range()

Question 14

operator to concatenate lists
creates a new list

Answer 14

+

Question 15

operator to repeat a list n times
creates a new list

Answer 15

*

Question 16

method to update multiple list elements at once
creates a new list

Answer 16

slice
nums[1:3] = [5,6]

Question 17

method to add one new element to end of list
modifies existing list

Answer 17

.append()

Question 18

method to add list with multiple new elements to end of list
modifies existing list

Answer 18

.extend([list])

Question 19

method to arrange list from lowest to highest

Answer 19

.sort()

Question 20

method that removes indexed element from list and returns value
default removes last element
modifies existing list

Answer 20

.pop()
eg. pop.(2)

Question 21

statement that takes element off of list based on index
returns None

Answer 21

del
eg. del t[1]
del t[1:5]

Question 22

function to take element off of list based on its value
returns None

Answer 22

remove
eg. remove(‘b’)

Question 23

function that returns accumulated value of list elements

Answer 23

sum()

Question 24

function that returns number of elements in list

Answer 24

len()

Question 25

function to convert a string to a list

Answer 25

list()

Question 26

function to convert a string into a list of words based on a delimiter.
default delimiter is a space

Answer 26

.split()

Question 27

string method that takes a list of strings and concatenates them together with a delimiter.
Method called on the delimiter and list passed as parameter

Answer 27

.join()

’ ‘.join(string_list)

Question 28

function that returns new list in order and leaves the original alone

Answer 28

sorted()