Python Sets 

A Set in python is a unordered collection of data . Every element should be unique . User can add or delete elements from set . length and content of set can be updated or deleted as per requirements .

Set in python are used to do mathematical operations such as Union and Intersection  etc .

A set in python can be created with {} curly braces with the use of build in function set()

>>>set_1={1,2,3}

Python set won't have a duplicate values .

>>>A={111,222,333,4444}

>>>A

(1,2,3,4)

 In set its not possible to access elements by its index. values can be access using loop.

colors={'red' , 'blue' , 'yellow'}

for color in colors :

print ("This shows colors of set :",color)

Basic method in sets 

add() :- This method is used to add data in sets 

update():- update method is use to update data in sets

pop():- This method is use to delete last item of the set .

remove():- This method is use to delete n number of elements from sets .

clear ():- This method is use to delete all elements from sets.

Operations in Set 

Union :-

Union means or , it consists elements of both the sets . In python there is a method to do Union operations union()

A | B

Intersection :-

Intersection means and , it consists common elements of both the sets . In python there is a method to do Intersection operations intersection()

A&B