set python

 # set is collection of unordered items.

# each item in the set is unique and immutable.

# in set we can not store list and dictionary.

# set is mutable but set elememts are immutable.

# -------------------------------------------------------

# sett={1,2,3,5,8,4,"ved",78.9, "ved"}

# print(sett)

# print(type(sett))

# empty set-> set()

sett=set()

# print(type(sett))

# set methods-

# 1- add()-> add elements in set.

# sett.add(1)

# sett.add(2)

# sett.add(2)

# print(sett)

# 2- remove()-> if you want to remove item which is not present in set , then you get error.

# sett.remove(1)

# print(sett)

# discard()-> use for remove value , if value is not present then no error.

# sett.discard(2)

# print(sett)

# 3- clear()-> remove all elements from set.

# sett.clear()

# print(sett)

# 4- pop()->remove random elements from set.

# set.pop()

# print(sett)

# 5- len()-> size of set

# print(len(sett))

# 6- union()->

# set1={1,2,3}

# set2={3,4,5}

# print(set1.union(set2))

# 7-intersection()->

# print(set1.intersection(set2))

# 8- update()-> add sequence in a set , inplace

# set1={1,2,3,4}

# new_list=[5,6]

# set1.update(new_list)

# print(set1)

# symmetric_difference()-> which is not common in both set.

# print(set1.symmetric_difference(set2))