All language subtitles for 6. Accessing List Items

Previously I showed you that in order to get the index off an item you can use the index method.
1

Now how can we do the reverse?
2

How can we get an item given its index?
3

Well for that we need to look one more time at the least of attributes that you can apply to the
4

list.
5

And I know that we can use the __getitem___ method.
6

Okay.
7

I know I told you earlier that these methods rarely you're going to use and in fact we don't need
8

these methods for what I'm going to do now, but let me explain why in just a bit you'll understand,
9

and this is a very secret of Python.
10

So let me go ahead and use __getitem__ with double underscores.
11

And of course it's a method so it needs this round brackets parentheses.
12

So let's try to get the item with index 1.
Which would that be? Well, 8.8.
13

Not the secret is that you don't have to use that ugly method there.
14

With those double underscores, all you have to do is use this syntax.
15

So call the variable name like that.
16

And then add open and closing square brackets and then inside them just enter the index.
17

And that will give you the value, the item for that index again even though you're doing this, Python
18

on the background actually is calling this method and is passing this item, this value as an input for
19

that methods.
20

So this is actually what's going on on the ground but Python lets you do it in a better fashion.
21

Like this in here.