Tuples and Lists

Question 1

tuples are _____

Answer 1

immutable

Question 2

Creating a tuple in python

Answer 2

> > > marx_tuple = (‘Groucho’, ‘Chico’, ‘Harpo’)

Question 3

tuple() function

Answer 3

> > > marx_list = [‘Groucho’, ‘Chico’, ‘Harpo’]
tuple(marx_list)
(‘Groucho’, ‘Chico’, ‘Harpo’)

Question 4

You can combine tuples using ___

Answer 4

+
»> (‘Groucho’,) + (‘Chico’, ‘Harpo’)
(‘Groucho’, ‘Chico’, ‘Harpo’)

Question 5

Duplicating itesm in utple using *

Answer 5

> > > (‘yada’,) * 3
(‘yada’, ‘yada’, ‘yada’)

Question 6

Can you directly modify a tuple?

Answer 6

No

Question 7

You can ______ tupes to make a new one as you can with strings

Answer 7

concatenate

Question 8

Lists in python are _____

Answer 8

mutable

Question 9

You can make an empty list using the _____ function

Answer 9

list()

Question 10

Making an empty list

Answer 10

empty_list = [ ]

Question 11

you can use ____ function to chop a string into a list by some separator

Answer 11

split()
»> talk_like_a_pirate_day = ‘9/19/2019’
»> talk_like_a_pirate_day.split(‘/’)
[‘9’, ‘19’, ‘2019’]

Question 12

> > > marxes = [‘Groucho’, ‘Chico’, ‘Harpo’]
Hwo to get first item

Answer 12

marxes[0]

Question 13

How to get first two elements

Answer 13

> > > marxes = [‘Groucho’, ‘Chico’, ‘Harpo’]
marxes[0:2]
[‘Groucho’, ‘Chico’]

Question 14

How to reverse a list

Answer 14

.reverse()

Question 15

How to appendx ‘Zeppo’ to end of this list?
»> marxes = [‘Groucho’, ‘Chico’, ‘Harpo’]

Answer 15

> > > marxes.append(‘Zeppo’)
marxes
[‘Groucho’, ‘Chico’, ‘Harpo’, ‘Zeppo’]

Question 16

How to insert a string at a given index in this list
»> marxes = [‘Groucho’, ‘Chico’, ‘Harpo’]

Answer 16

> > > marxes.insert(2, ‘Gummo’)

Question 17

Duplicate items with __

Answer 17

*

Question 18

Combine lists using ____ or ___

Answer 18

extend(), +, +=

Question 19

How to change 3rd item from Harpo to Wanda
»> marxes.insert(2, ‘Gummo’)

Answer 19

> > > marxes[2] = ‘Wanda’

Question 20

How to change 2nd and third items to 8 and 9
»> numbers = [1, 2, 3, 4]

Answer 20

> > > numbers[1:3] = [8, 9]

Question 21

How to deleet Karl from list
»> marxes = [‘Groucho’, ‘Chico’, ‘Harpo’, ‘Gummo’, ‘Karl’]

Answer 21

> > > del marxes[-1]

Question 22

You can also delete at item using the _____ function

Answer 22

remove()

Question 23

> > > marxes = [‘Groucho’, ‘Chico’, ‘Harpo’, ‘Zeppo’]
How to pop of the last element?

Answer 23

> > > marxes.pop()
‘Zeppo’
marxes
[‘Groucho’, ‘Chico’, ‘Harpo’]

Question 24

How to find index of Chico
»> marxes = [‘Groucho’, ‘Chico’, ‘Harpo’, ‘Zeppo’]

Answer 24

> > > marxes.index(‘Chico’)
1

Question 25

How to chekc if Groucho is in marxes >>> marxes = ['Groucho', 'Chico', 'Harpo', 'Zeppo']

Answer 25

>>> 'Groucho' in marxes True >>> 'Bob' in marxes False

Question 26

Count occurrences of value with ____

Answer 26

count

Question 27

*The list method _____ sorts the list itself, in place.

Answer 27

sort()

Question 28

*The general function ____ returns a sorted copy of the list.

Answer 28

sorted()

Question 29

You can copy the values of a list to an independent, fresh list by using any of these methods:

Answer 29

- The list copy() method *The list() conversion function *The list slice [:]

Question 30

How to iterate over a list

Answer 30

>>> cheeses = ['brie', 'gjetost', 'havarti'] >>> for cheese in cheeses: ... print(cheese)

Question 31

Lists can contain elements of different types, including other lists, as illustrated here:

Answer 31

>>> small_birds = ['hummingbird', 'finch'] >>> extinct_birds = ['dodo', 'passenger pigeon', 'Norwegian Blue'] >>> carol_birds = [3, 'French hens', 2, 'turtledoves'] >>> all_birds = [small_birds, extinct_birds, 'macaw', carol_birds]

Question 32

Tuple items are indexed, the first item has index _____, the second item has index ____ etc.

Answer 32

[0],[1]

Question 33

Since tuples are indexed, they can have items with the _____ value

Answer 33

same

Question 34

To determine length of tuple

Answer 34

len()

Question 35

Creat a tuplewith only one item

Answer 35

thistuple = ("apple",) print(type(thistuple))

Question 36

Tuple items can be of any data type

Answer 36

true

Question 37

mytuple = ("apple", "banana", "cherry") Print the type

Answer 37

print(type(mytuple))

Question 38

It is also possible to use the ______ constructor to make a tuple.

Answer 38

tuple()

Question 39

You can access tuple items by referring to the index number, inside ____ brackets

Answer 39

square print(thistuple[1])

Question 40

You can also use negative indexing

Answer 40

True

Question 41

Slicing example for tuple

Answer 41

thistuple = ("apple", "banana", "cherry", "orange", "kiwi", "melon", "mango") print(thistuple[2:5])

Question 42

How to access list item

Answer 42

listname[index]

Question 43

To change the value of a specific item, refer to the _____ ______

Answer 43

index number thislist = ["apple", "banana", "cherry"] thislist[1] = "blackcurrant" print(thislist)

Question 44

How to change range of items in a list

Answer 44

thislist = ["apple", "banana", "cherry", "orange", "kiwi", "mango"] thislist[1:3] = ["blackcurrant", "watermelon"] print(thislist)

Question 45

How to add items to end of list

Answer 45

append()

Question 46

How to insert items at specific index in list

Answer 46

insert()

Question 47

How to append items from another list

Answer 47

extend()

Question 48

The extend() method does not have to append lists, you can add any iterable object (tuples, sets, dictionaries etc.)

Answer 48

True

Question 49

How to remove item from list

Answer 49

remove()

Question 50

The _____ method removes the specified index

Answer 50

pop() ex: thisList.pop(1)

Question 51

If you do not specify the index, the pop() method removes the ______ item

Answer 51

last

Question 52

The ____ keyword also removes the specified index

Answer 52

del thislist = ["apple", "banana", "cherry"] del thislist[0] print(thislist)

Question 53

The ______ method empties the list.

Answer 53

clear()

Question 54

List objects have a _____ method that will sort the list alphanumerically, ascending, by default:

Answer 54

sort()

Question 55

You can also customize your own function by using the keyword argument __________

Answer 55

key = function def myfunc(n): return abs(n - 50) thislist = [100, 50, 65, 82, 23] thislist.sort(key = myfunc) print(thislist)

Question 56

How to copy list

Answer 56

copy()

Question 57

How to make a list

Answer 57

use built in method list()

Question 58

You can also make a copy of a list by using the ____ (____) operator.

Answer 58

:, slice