# Intersection of two arrays in Python ( Lambda expression and filter function ) # Function to find intersection of two arrays  def interSection(arr1,arr2):       # filter(lambda x: x in arr1, arr2)  -->     # filter element x from list arr2 where x     # also lies in arr1     result = list(filter(lambda x: x in arr1, arr2))      print ("Intersection : ",result)  # Driver programif __name__ == "__main__":    arr1 = [1, 3, 4, 5, 7]    arr2 = [2, 3, 5, 6]    interSection(arr1,arr2)