Original subtitles

1

Let's now look at tuples. In the

previous lecture we looked at lists and

3

tuples are very similar to lists, the

only difference is that tuples are not

5

mutable, so you cannot change a tuple.

Lists are used much more than tuples

7

so tuples are only using very specific

scenarios, so we will see some scenarios

9

throughout the course when we build the

real-world applications, so you don't

11

have to worry about understanding when

to use a tuple in programming for now.

13

Anyway I want to show you the syntax, so

you can create a tuple like that.

15

So tuples just like lists, they contain

they may contain different data types.

17

Let's say 3 4 and so on.

Oh sorry, I was writing in the

19

terminal, let me open the Python shell so

again

21

we have strings numbers and floats if you like.

Whatever type that you want you can pass

23

in a tuple and in a list and of course

you can use indexing for tuples as well,

25

so let's access the lost item and that

will give 4.6. The difference is that you

27

know tuples they have some slight

different methods than lists, so if you

29

dir list, you see that lists have

much more methods available than tuples,

31

so for instance you can append items to

a list, you can clear the list and copy

33

and count, count is available for tuples

because count doesn't change the data type,

35

so it doesn't change the tuple, it just

counts how many items are there in the tuple.

37

As I said, tuples are immutable, so you

cannot change them that's why these

39

methods that change the data type like

inserting new values and popping out

41

values, removing

values, reversing and sorting so these

43

are not available and yeah this is more or

less about tuples. In case you need them

45

later they are there for you. Hope you're

enjoying the course and I'll talk to you later.