extend()

Question

Why it gives None?

A=[1,2]
B=[3,4]
C=A.extend(B)
print (C)

Answer 1

extend is a function performed on a list which returns none which is stored in C. A holds [1,2,3,4]

Answer 2

Does it mean that we can't assign extended list to any value?

Answer 3

Right, just do C = A + B

Answer 4

At least not like this with the extend method. But as Jason said: C = A + B does exactly what you intend to do.

Answer 5

you can do this if you want extend

a = [1,2,3,4]
b = a[:]
b.extend([5,6])
print(b)

output:
[1,2,3,4,5,6]

may i ask if you had this in a chellenge?

Answer 6

yes