Original subtitles

0 I have a list of five items here. 1

Let me show you why. Use the len function and you see that it has, it really has five items. 2

Now besides accessing single items out of your list like that item with index 3. 0, 1, 2, 3, so 6.6, 3

you can also access portions of the list. 4

Let's say from 1 to 4 and that will give you another list. 5

So the outputs of this is also a list and it's going to contain the items with index 1, index 2 and 6

index 3, the upper limit 7

it's not included, it's never included in a python slice. 8

So this is a slice. 9

And this is the output of the slice. 10

Let's try to get the first two items of the list. The first two items have an index of zero and one. 11

So we'll start with 0 since we also want the item with index 1 12

we are going to write 2 there, so that we get 1and that is the output. 13

So the index 2 is not included, 7.5 is not included. 14

You can also use a shortcut for that. 15

You don't have to type 0 16

if you meant to get everything starting from the first item and that will give you the same output. 17

Similarly, if you want to get let's say the last two items you can start to count 0, 1, 2, 3, so 3 start 18

from 3 and this has an index of 4. 19

So we are going to write 5 there. Even though we got the expected output. 20

You'd better be using the shortcut for that. 21

So this is more intuitive because it tells you that you're extracting from item with index 3 to the 22

last item of the list. 23

So without knowing how many items there are in the list. Similar here you extracting from the very first 24

item to the item with index 1, now for big lists 25

when you want to extract the last items, it may make not much sense to count from the beginning. 26

1, 2, 3, 4, 5, 6 and so on but Python has another system of indexing and I'll show you that in the next video.