Python for Beginners: a free course, learning from scratch
2026-02-21 02:52 Diff
https://hexlet.io/courses/python-basics

1

Introduction

Learning about Python Basics course

2

Hello, World!

Writing the first program

3

Instructions

Learning the basics of building programs in Python

4

Arithmetic operations

Learning how to express arithmetic operations in code

5

Design errors, syntax and linter

Exploring types of errors and ways to fix them

6

Strings

Learning to work with strings

7

Variables

Learning to store information and reuse existing data

8

Expressions in definitions

Learning to use variables and simplify code

9

Naming

Learning how to name variables correctly

10

Interpolation

Learning another way to work with strings in Python

11

Extract characters from a string

Learning how to get values from strings

12

String cuts

Learning how to extract substrings

13

Data types

Learning how to multiply a number by a string

14

Immutability and primitive types

Explore whether Python can change strings or numbers

15

Functions and their calls

Learning to use ready-made functions

16

Function Signature

Learning how the function takes and returns values

17

Function calls and expressions

Learning to use the result of the functions

18

Determinism

Exploring some function's properties and their features

19

Standard Library

Introducing the standard library

20

Properties and methods

Learning to use Python's built-in data attributes

21

Chain of methods

Learning how to use Python's built-in data attributes

22

Definition of functions

Learning to create functions

23

Return values

Learning to use the result of the function

24

Function parameters

Learning how to transfer data to a function

25

Optional function parameters

Learning how to set the default values

26

Named arguments

Exploring another type of arguments

27

Environment

Learning about the values available for the functions

28

Logic

Learning what a logical type is and how to apply logical operations

29

Logical operators

Learning how to write compound conditions

30

The result of logical operations

Exploring logical operations in more depth

31

Conditional constructions

Learning how to control the program's behavior depending on different conditions

32

The while loop

Learning to write programs for repetitive actions

33

Data aggregation

Learning to apply cycles in practice

34

Row bypass

Learning how to bypass and form strings in loops

35

Conditions in the loop body

Learning to control the behavior of programs in loops

36

The for cycle

Exploring another loop in Python

37

Debugging

Learning how to find bugs in the code

38

Modules

Learning how Python handles code split into multiple files

39

Deeper modules

Exploring non-obvious cases of working with modules

40

Packages

Learning how to combine individual modules into groups

41

Module random

Using the random module, responsible for generating random numbers

42

Corteges

Getting familiar with the first composite type

43

History of Python

Learning how Python became what it is today