Sets

Question 1

Create set

Answer 1

set_variable = set()

Question 2

Add value to set

Answer 2

set_variable.add(value)

Question 3

Check if value exists in set

Answer 3

value in set_variable

Question 4

Delete value from set

Answer 4

set_variable.remove(value)

Question 5

Remove duplicates from list

Answer 5

unique_list = list(set(original_list))

Question 6

Find length of set

Answer 6

len(set_variable)

Question 7

Clear set

Answer 7

set_variable.clear()

Question 8

Union set, returns new set which includes all elements from set1 and set2

Answer 8

union = set1.union(set2)

Question 9

Find the intersection of two sets

Answer 9

intersection = set1.intersection(set2)

Question 10

Find the elements that are in set1 but not set2

Answer 10

set1.difference(set2)

Question 11

Find the elements that aren’t shared by both sets

Answer 11

symmetric_difference = set1.symmetric_difference(set2)

Question 12

Find is set1 is a subset of superset of set2

Answer 12

set1.issubset(set2) # elements of set1 are all present in set2
set1.issuperset(set2) # elements of set2 are all present in set1

Question 13

Create immutable set

Answer 13

frozen_set = frozenset([1, 2, 3])

Question 14

Iterate over values in set

Answer 14

for value in set_variable:
print(value)