How to check if an element in the list exists in another list

Question

How to check if an element in the list exists in another list?And if it does append it to another list.How Can i make it to get all the values in a list?

common=[]

def findCommon(interActor,interActor1):
    for a in interActor:
        if a in interActor1:
            common.append(a)
    return common
interActor=['Rishi Kapoor','kalkidan','Aishwarya']
interActor1=['Aishwarya','Suman Ranganathan','Rishi Kapoor']

Answer 1

You can do it using list comprehensions:

common = [x for x in iter_actor1 if x in iter_actor2]

or using sets:

common = set(iter_actor1).intersection(iter_actor2)

Answer 2

interActor=['Rishi Kapoor','kalkidan','Aishwarya']
interActor1=['Aishwarya','Suman Ranganathan','Rishi Kapoor']
anotherlist = []

for x in interActor:
    if x in interActor1:
        anotherlist.append(x)