why it prints None?

Question

lista = [1,2,3,4,5,6]
print(lista.extend([7,8]))

Answer 1

print() is supposed to display the return value of the lista.extend() method. But there's nothing to return really, it just extends lista by the list [7, 8]. So the default return value, None, is printed. If you want to see how lista looks now, just print it after extending:

lista.extend([7,8])
print(lista)

Hope that helps 😊

Answer 2

It Doesn't return anything, sice get a none🤗