Lists in Python

Question 1

List syntax

Answer 1

Var=[‘smth’, ‘smth again’, ‘smth else’]

Question 2

How to access elements in the List?

Answer 2

print=(list_name[index position])

[-index] - last items

Index position starts from 0 not 1

Question 3

How to modify the value of the 1st item?

Answer 3

var[0]=”new value”

Question 4

How to add element to the list?

Answer 4

var.append(‘new element’)

Add element to the end of the list

Question 5

How to add element at any position to the list?

Answer 5

variable.insert(index, ‘element’)

Question 6

How to remove item from the list?

Answer 6

del var[index]

In case if the index, position of the item is known

Question 7

Which method we use when we want to use the value of the item after we remove it?

Answer 7

pop ()

Removes the last item in a list

Question 8

How to remove an item from any position?

.pop()

Answer 8

.pop(index)

Question 9

How to remove the item if index is not known, but only the value?

Answer 9

.remove(‘value’)

Question 10

How to sort a list permanently?

(Alphabetically)

Answer 10

.sort()

sort(reverse=true)

Question 11

How to sort list temporarily?

Maintain original order of the list, but present in a sorted order

Alphabetically

Answer 11

sorted() & reverse()

Function!

print(sorted(list_name))