Sometimes, we want to move backward, i.e. starting with the very last symbol. Of course, we can count a number of symbols in a string, and then use it for our purposes. But it is a bit irrational, isn't it?

In Python, like for lists or tuples, we can access the very last element by using negative index `-1`. With negative indexing, enumeration starts with 1 this time, i.e. the very last element has index `-1`, the last but one `-2`, and so on...

> Note
>
> You can reverse a string by using `[::-1]`. This indexation means start at the end of string, end at the start (index 0), and move with step -1 (backward).

As a data scientist or analyst, you will have to deal with different data types. The first thing that comes to mind - is numerical data, of course. But also you will have to deal with textual data often. In this course, you will dive into strings, that represent textual data in Python, and learn how to perform different manipulations with them.

In this section you will be introduced with the basic concepts of strings in Python, such as creating, indexing, and slicing.

In this section we will learn important strings methods, like .split, .count, .strip and so on...

In this section we will learn how to format strings, learn about f-string conception, replacing particular parts of strings, splitting string by lines and so on...

Negative Indexing

Solution

Negative Indexing

Solution