What can we do with the assigned variable? After creating variables with a specific value, you can access this value in the future by using the variable's name and performing available operations.

For example, we can use the variable `chapter` that was created several chapters ago. We can add `4` to find out the number of the current chapter. Suppose you want to use this value in the future. In that case, you need to create or reassign a new value to an existing variable.

# Creating a variable
chapter = 9
# Reassign variable
chapter = chapter + 4
# Output modified value
print(chapter)

Suppose you have a variable `level` representing the current player's level. Suppose the player reaches the next level. You need to add `1` to the `level` variable and reassign the value.

Python is an interpreted high-level, general-purpose programming language, which means it can be used in different spheres of human activity (unlike HTML, CSS, and JavaScript, which are mainly used in web development). Python can be used in software developing, data science, back-end development, etc. In this mobile-friendly version of the course, you will meet with the main aspects of Python.

In the first section, you will be introduced to the very basics of Python - how to interact with Python, perform simple operations, and output results.

In the past section, you performed different operations with numbers. In this section, you will learn how to save values in computer memory and be able to use them in the future for any purpose.

During the last two sections, you mostly worked with numerical data. In the third section, you will learn how to work with textual data in Python (strings), how to manipulate such data, what methods can be applied to them, and so on.

Operating With Variables