insert

[mj125]

hello, I'm a beginner at python and I run this code:

1 2 3 4

x = [1,2,3,4] print("x= ",x) y = x.insert(1,6) print("y= ", y)

and the answer is:

Output:
x=  [1, 2, 3, 4]
y=  None

why?

[buran]

list.insert() method works in-place, e.g.

1 2 3

my_list = [1, 2, 3, 4] my_list.insert(1, 6) print(my_list)

Output:
[1, 6, 2, 3, 4]

[mj125]

Thanks.