check if two lists have common elements python code example

Example 1: find common elements in two lists python

list1 = [1,2,3,4,5,6]
list2 = [3, 5, 7, 9]
list(set(list1).intersection(list2))

Example 2: python check if two lists intersect

a = [1, 2, 3]
b = [3, 4, 5]

bool(set(a) & set(b))