Methods

Question 1

String.upper()

Answer 1

Makes the first letter upper case

Question 2

Method to append an element to the end of the list

Answer 2

list.append(element)

Question 3

Set method

Answer 3

set() method is used to create a new set object. A set is an unordered collection of unique elements.

Question 4

Ways to use set method

Answer 4

• create a set from a list.
• create a set from a dictionary. Converts only keys.

Question 5

A way to add element to a string

Answer 5

string += element

Question 6

How to convert integer into a string

Answer 6

str(integer)

Question 7

Method for lower case

Answer 7

string.lower()

Question 8

replace method

Answer 8

Is a built in string method used to replace occurrences of a substring with a new string within a given string

Question 9

Replace method syntax

Answer 9

string.replace(old_substring, new_substring, count)

count is optional. The max number of occurrences of old string to replace.

Question 10

Ways to get rid of white space in a string

Answer 10

• with string.replace() method. Removes all white spaces
• string.strip() method - removes space at the beginning of a string and at the end
• str.lstrip(), str.rstrip() - removes it from left or right side

Question 11

How to convert a list of strings into a string

Answer 11

With join method
str.join(lst)

Question 12

How to convert a list with int to a string

Answer 12

With join() method
Example: lst =[…..]
str1= “ “.join([str(elem) for elem in lst])

Question 13

How to turn a sentence into an array

Answer 13

sentence.split()
It can’t be combined with other methods

Question 14

Length of an element

Answer 14

len(element)

Question 15

Get the type of an element

Answer 15

type(element)
if type(element) == int:

Question 16

How to reverse a string

Answer 16

element[::-1]

Question 17

Add element to a set

Answer 17

set.add(element)

Question 18

Check if an element in a set

Answer 18

element in mySet:
True/False

Question 19

Length of a set

Answer 19

len(mySet)

Question 20

Remove a specific element from a set

Answer 20

mySet.discard(element)

Question 21

How to add an element to a dictionary of lists

Answer 21

dictionary[key_of_a_list].append(element)

Question 22

Example of enumerate function use

Answer 22

Add