Intersection on two lists

listcomprehension.py

import random
a= random.sample(range(1,30), 7)
b= random.sample(range(1,30), 10)
result1= []
result2 = []
result3 = []
for element in a:
    if element in b:
        result1.append(element)
print(result1)
#this is first try

result2 = [element for element in a if element in b ]
print(result2)
#this will yeild duplicate solution

result3 = [element for element in set(a) if element in b ]
print(result3)
#this will not yeild duplicates