Why is the output of these two statements different？

Question

In a python program, define a list: my_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

The output results of executing the following two statements are different:

1:

list1 = my_list[1:9:2]
print(list1)

output:[2, 4, 6, 8]

2:

list2 = my_list[1::2]
print(list2)

output:[2, 4, 6, 8, 10]

I can't understand why there is no "10" in the output of the first statement

Might want to review this: [Understanding slicing](https://stackoverflow.com/questions/509211/understanding-slicing). — sj95126, Oct 23 '22 at 14:32
oh I think I get it `a[:stop] # items from the beginning through stop-1` — essesoul, Oct 23 '22 at 14:40

score 0 · Accepted Answer · answered Oct 23 '22 at 14:34

0

list1 = my_list[1:9:2] It would be enough to write 10 instead of 9 here.

answered Oct 23 '22 at 14:34

MrSpyX

At first I was worried that changing the 9 of `my_list[1:9:2]` to 10 would overflow. Now I think I get it. Thanks. – essesoul Oct 23 '22 at 14:43

1 Answers1