insert - Printable Version

insert - Printable Version

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insert - mj125 - Aug-04-2018

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

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?

RE: insert - buran - Aug-04-2018

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

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

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

RE: insert - mj125 - Aug-04-2018

Thanks.