Python set intersection

You can get the intersection of sets by intersection() in Python.

a = {1, 2, 3}
b = {1, 2, 5}

c = a.intersection(b)

print(c)  # {1, 2}

If the intersection is empty, it returns an empty set (set()).

a = {1, 2, 3}
b = {4, 5}

c = a.intersection(b)

print(c)  # set()

Intersection operator

a = {1, 2, 3, 4}
b = {1, 2, 6}
c = {1, 2, 7}

d = a & b & c

print(d)  # {1, 2}

& is an intersection operator and it's used to get the intersection of three or more than three sets.