Lists

Question 1

What is a list[]

example = [“dd”, “ff”]

Answer 1

Collection of items in a particular order

Question 2

A list that holds “trek” “cannondale” “redline” “specialized”

print the array no(which holds these elements)

Answer 2

no = [“trek”, “cannondale” , “redline” , “specialized”]

print(no)

Question 3

Print the 3rd item in a list

no = [“trek”, “cannondale” , “redline” , “specialized”]

Answer 3

print(no[2])

Question 4

Individual values from a list

no = [“trek”, “cannondale” , “redline” , “specialized”]

Print the first item from the list, assign message to equal it, and print it

Answer 4

message = f”My first bike was a {no[0].title()} bike “

print(message)

Question 5

Modify elements in a list

bikes = [‘nice’, ‘cool’, ‘wins’, ‘unck’]

Change the ‘wins’ to ‘loses’

Answer 5

bikes[2] = ‘loses’

print(bikes[2])

Question 6

Adding(appending) elements to the end of a list

append() method for bikes = [‘nice’, ‘cool’, ‘wins’, ‘unck’]

Answer 6

bikes.append(‘more’)

print(bikes)

Question 7

Add elements to an empty list

nicebikes = []

Answer 7

nicebikes. append(‘red’)
nicebikes. append(‘black’)
nicebikes. append( ‘white’)

Question 8

insert elements into a list insert(index, element)

nicebikes = [‘red’, ‘black’, ‘white’]

Insert at the index postion 2 ‘blue’

Output: [‘red’, ‘black’, ‘blue’, ‘white’]

Answer 8

nicebikes.insert(2, ‘blue’)

print(nicebikes)

Question 9

Remove an item from a list

Answer 9

del nicebikes[2]

Question 10

Pop() method to remove an item

bikes = [‘nice’, ‘cool’, ‘wins’, ‘unck’]

• Pop ‘nice’ at index 0 defined as first_owned variable
• Print “I popped the nice bike”

Answer 10

first_owned = bikes.pop(0)

print(f”I popped the {first_owned.title() } bike “)

Question 11

When should you use the del vs the pop() method?

Answer 11

-Delete is permeantenly get rid of the itme, pop to use the item as you remove it

Question 12

Remove() method

-How can it be used?

bikes = [‘nice’, ‘cool’, ‘wins’, ‘unck’]

-Remove ‘wins’ from bikes with the remove() method

Answer 12

• Removes a string, interger or decimal value from a list
  bikes. remove(‘wins’)

Question 13

Permanenetly sort a list(alphabetically)

cars = [‘bad’ , ‘nope’ , ‘mo’]

Answer 13

cars.print()

print(cars)

Question 14

temporarily sort a list

cars = [“how”, “very”, “cool”]

Answer 14

print(sorted(cars))

Question 15

Reverse a list permanenetly

bikes = [‘nice’, ‘cool’, ‘wins’, ‘unck’]

Answer 15

bikes.reverse()

print(bikes)

Question 16

Sort a list temporarily

cars

Print cars as a temporarily sorted list

Answer 16

print(sorted(cars))

Question 17

permanenetly print a list in reverse order

cars = [“mp”, “jgh”, “hh”]

Answer 17

print(cars)

cars.reverse()

print(cars)

Question 18

finding the lenght of the list

bikes = [‘nice’, ‘cool’, ‘wins’, ‘unck’]

Answer 18

len(bikes)

Question 19

loop through an entire list

animes = [“opm”, “bnha”, “

OP”]

Answer 19

for grom in animes:

print(animes)

Question 20

alist = [“nk”, “rk”, “bk”]

for variable in alist:

print(alist)

Output:

Answer 20

nk

rk

bk

Question 21

magicians = “Alice”, “Andrew”, “Sarah”]

print a message to each magician

Answer 21

for magician in magicians:

print(f”Congrats {magician} , you did well!”)

Question 22

Forgetting to indent Additional lines