What Python is, how it executes code line by line, setting up your environment, writing your first programs, and the four syntax rules that prevent 90% of beginner errors.
Python · Free course
Python Course: Learn Python Programming from Scratch — Free
The only Python course you need to go from absolute beginner to job-ready developer — structured, free, and built for people who learn by doing.
20 chapters · 855 minutes · 7,113+ learners enrolled · Free forever
This is not a collection of disconnected tutorials. Every chapter builds on the previous one — from your first print() statement through variables, loops, functions, and object-oriented programming, all the way to working with real APIs and databases. By the final chapter you will have the foundation to build real Python projects and handle Python confidently in technical interviews.
Start with Day 1: Introduction to PythonWhat this course covers
20 Chapters. One Complete Python Foundation.
Most Python learners stall not because the language is hard, but because they learn from scattered resources — a YouTube video here, a Stack Overflow answer there, a tutorial that assumes knowledge they do not have. Progress feels random and gaps accumulate invisibly.
This course fixes that. The chapters are sequenced so every concept you need for the next topic is already covered in the previous one. You never hit a wall because a prerequisite was skipped.
Here is exactly what you will learn and build across all 20 chapters:
Beginner Track — Days 1 to 9
These chapters build the foundation that every other Python concept depends on. Do not rush this section. Fluency here makes everything that follows easier.
How Python stores information using integers, floats, strings, and booleans. Variable naming rules, type checking with type(), and converting between data types when your program needs a number but has a string.
Arithmetic operators, comparison operators (==, !=, <, >), logical operators (and, or, not), and operator precedence — the rules that determine which calculation Python performs first.
Text manipulation in Python. Slicing, indexing, f-string formatting, and the 15 string methods you will use constantly: split(), join(), strip(), replace(), find(), upper(), lower(), and more.
Python's most-used data structure. Creating lists, accessing elements by index, modifying lists with append(), pop(), sort(), and reverse(), slicing sublists, and writing your first list comprehensions.
When to use immutable sequences (tuples) versus unordered unique collections (sets). Tuple unpacking, set operations — union, intersection, difference — and the practical use cases that make each structure worth knowing.
Key-value storage in Python. Creating dictionaries, reading and updating values, iterating with .keys(), .values(), and .items(), handling missing keys safely, and nesting dictionaries for structured data.
Writing programs that make decisions. if, elif, and else syntax, nested conditions, ternary expressions, and the logic patterns that appear in nearly every real Python program.
Automating repetition with for and while loops. The range() function, enumerate() for index-aware iteration, break and continue for flow control, nested loops, and common loop patterns like accumulation and searching.
Intermediate Track — Days 10 to 15
This is where Python goes from a scripting tool to a real programming language. These chapters cover the concepts that separate beginners from developers who can build and maintain actual software.
Defining reusable logic with def. Parameters, return values, default arguments, *args and **kwargs, variable scope, and why well-designed functions are the single biggest factor in code that is easy to read and maintain.
Introduction to object-oriented programming. Defining classes, creating objects, writing __init__ constructors, instance methods, class attributes versus instance attributes, and __str__ for readable object representations.
Building on existing classes without rewriting them. Single and multiple inheritance, super() for calling parent methods, method overriding, polymorphism in practice, and when to use inheritance versus composition.
Organising Python code across multiple files. The import system, importing specific functions with from ... import, creating your own modules, navigating the Python standard library, and installing third-party packages with pip.
Reading from and writing to files. Text mode versus binary mode, read(), readline(), readlines(), write() and writelines(), context managers with with open(), and the safe patterns that prevent file corruption.
Writing programs that do not crash on bad input. try, except, else, finally, catching specific exceptions versus bare except, raising exceptions intentionally, and creating custom exception classes for cleaner error handling.
Advanced Track — Days 16 to 23
These chapters take you into Python's more powerful features and real-world application areas. By the end of this track you will have built programs that interact with databases, consume live APIs, and handle complex data structures.
Beyond lists and dicts. Stacks and queues with collections.deque, defaultdict for missing keys, Counter for frequency analysis, namedtuple for structured records, and the performance trade-offs that determine which structure to reach for.
Implementing and analysing core algorithms in Python. Linear search and binary search, bubble sort and insertion sort, merge sort with recursion, Big O notation for measuring efficiency, and how to evaluate which algorithm fits a given problem.
How web applications work under the hood. HTTP request and response cycles, routing, templating, and your first look at building a working web application in Python using a lightweight framework.
Connecting your Python programs to the outside world. Making HTTP requests with the requests library, parsing JSON responses, handling authentication and API keys, managing errors gracefully, and building a small project that consumes a real public API.
Persisting data beyond program runtime. Connecting Python to SQLite using sqlite3, executing SQL queries from Python, performing full CRUD operations (Create, Read, Update, Delete), using parameterised queries to prevent SQL injection, and structuring database code cleanly.
What makes this course different
Why learners chose Schoolabe for Python
- Every chapter ends where the next one begins. The course is sequenced so you are never missing a prerequisite. When you reach functions in Day 10, you have already used variables, operators, strings, lists, and conditionals enough times that functions feel like a natural evolution — not a leap.
- Concepts are introduced once and reinforced continuously. You do not learn loops in Day 9 and then forget them. Every advanced chapter uses loops. Every OOP example uses conditionals. Every file handling program uses strings. The repetition is intentional — it is how fluency actually forms.
- The examples reflect real use cases. The programs in this course are not toy examples invented to demonstrate a concept in isolation. They reflect patterns you will encounter in actual Python jobs — parsing text files, processing list data, building class hierarchies, making API calls, querying databases.
- The course scales with your existing knowledge. If you are a complete beginner, start at Day 1 and follow the sequence. If you already know the basics, use the chapter list to identify your gaps and jump in where you need depth. The structure supports both approaches.
Who this course is for
You are in the right place if
- You are a complete beginner who has never written a line of code and wants a structured path that does not assume anything. This course explains every concept from first principles — including things most tutorials skip, like how Python actually executes code and why indentation is part of the syntax.
- You are a student preparing for placements or technical interviews who needs to build Python fluency quickly and understand the problem-solving patterns that appear in assessment tests. The intermediate and advanced chapters are specifically relevant here.
- You are a developer from another language — Java, JavaScript, C++ — who needs to get productive in Python fast. The course moves efficiently through the basics and gets to the more nuanced Python-specific concepts (list comprehensions, generators, decorators, OOP) that often trip up experienced developers switching languages.
- You are a self-taught developer with gaps in your fundamentals. You know enough Python to write scripts, but you are not confident about how classes work, how modules are structured, or how to handle exceptions properly. Use the chapter list to find the exact gaps and fix them.
This course is text-based and code-heavy by design — every chapter pairs clear explanation with working examples you can type and run immediately. Short video walkthroughs are coming to key chapters soon, so you will be able to read, watch, and practice all in one place. The one thing that does not change: you will need to write code yourself. Reading about Python and watching Python are both useful. Neither one replaces actually writing it.
What you will be able to do after this course
By the time you complete all 20 chapters you will be able to:
- Write clean, readable Python code that follows real industry conventions — not just code that works, but code another developer can maintain.
- Build programs that handle real data — reading from files, querying databases, parsing API responses — rather than programs that only work with hardcoded inputs.
- Design solutions using the right data structure for the problem. Knowing when to use a list versus a dictionary versus a set versus a tuple is a skill that separates junior developers from mid-level ones.
- Debug your own code confidently. Understanding Python's error types — NameError, TypeError, IndexError, KeyError, AttributeError — and knowing what each one means makes debugging a methodical process instead of guesswork.
- Explain your code clearly. Every chapter in this course emphasises understanding why a solution works, not just that it works. This is the difference between passing an interview and failing one.
- Extend your skills into specialisations — data science with Pandas and NumPy, web development with Django or FastAPI, machine learning with PyTorch — because you have the foundation all of those frameworks are built on.
Course prerequisites and setup
What you need before starting
Experience required: None. This course starts from absolute zero. If you have never written a line of code, Day 1 is the right starting point.
Hardware: Any laptop or desktop running Windows, Mac, or Linux. Python runs on all three. You do not need a powerful machine — Python runs fine on hardware that is five years old.
Software to install:
- Python 3.12 or later — free from python.org
- VS Code — free from code.visualstudio.com, with the Microsoft Python extension installed
Time commitment: 30 to 60 minutes per day. At that pace most learners complete the full course in 3 to 5 weeks. Faster is possible — the course is self-paced and has no deadlines.
One non-negotiable: You must write the code yourself. Copy-pasting examples teaches you nothing. Type every program. Make deliberate changes. Break things and fix them. That process is the entire point.
How to get the most from this course
A learning method that actually works
- Follow the chapter order on your first pass. The sequence is deliberate. Skipping chapters to get to the interesting parts faster creates invisible gaps that slow you down later. Do the 20 minutes of Day 1 even if it feels simple. The early chapters build habits, not just knowledge.
- Code every single example. Read the explanation, then close the tutorial and type the code from memory. This is harder than copying it. That difficulty is exactly what makes it work.
- Write a 3-bullet summary after each chapter. Force yourself to explain in your own words what you learned. If you cannot summarise it, you have not understood it well enough to use it. This habit also gives you a personal revision guide for interview prep.
- Use the practice exercises the same day. The Python exercises hub has problems mapped to every chapter topic. Finishing Day 9 (Loops) and immediately solving 5 loop exercises is 10 times more effective than banking the exercises for later.
- When you are stuck, go back one chapter. If Day 12 (Inheritance) is confusing, the gap is almost always in Day 11 (Classes). If Day 10 (Functions) feels hard, reread Day 9 and Day 7. The course is designed so that confusion points to a specific earlier chapter — not to a general lack of ability.
Quick-start Python example
See what Python looks like before you begin
If you have never seen Python code before, here is a working program that uses concepts from the first 9 chapters of this course — variables, a list, a loop, a conditional, and a function:
# A simple student grade checker
students = [
{"name": "Alice", "score": 88},
{"name": "Bob", "score": 72},
{"name": "Carol", "score": 95},
{"name": "David", "score": 61},
]
def get_grade(score):
if score >= 90:
return "A"
elif score >= 80:
return "B"
elif score >= 70:
return "C"
else:
return "F"
for student in students:
grade = get_grade(student["score"])
print(f"{student['name']}: {student['score']} → Grade {grade}")Output:
Alice: 88 → Grade B
Bob: 72 → Grade C
Carol: 95 → Grade A
David: 61 → Grade FEvery line of this program will make complete sense by the time you finish Day 10. Right now, focus on one thing: it reads almost like plain English. That readability is not accidental — it is the design philosophy that makes Python worth learning.
Explore the full Python learning ecosystem
Everything you need to go from reading to ready
This course is one part of Schoolabe's complete Python learning ecosystem. Each resource below serves a different purpose and works best when used alongside the course chapters.
Python Tutorial Hub
A structured roadmap connecting all 20 chapters with navigation links and concept summaries. Use this for quick orientation and weekly progress checks.
Python Exercises — 165+ Practice Problems
Problems organised by topic and difficulty with full solutions. Linked to specific chapters so you practice the exact concept you just learned. The most important companion to this course.
Python Interview Questions
The patterns, problems, and explanations that appear most frequently in Python technical interviews. Use this after completing the intermediate track.
Python Cheatsheet
Quick-reference syntax for every major Python concept. Most useful during the advanced chapters and during interview preparation when you need fast recall without re-reading full chapters.
Python Quiz — 301 Questions
Multiple-choice questions covering every chapter topic with answer explanations. Use this at the end of each chapter group to identify gaps before moving forward.
About your instructor
Rohit Srivastava — Founder and Lead Instructor, Schoolabe
Rohit built Schoolabe from a simple observation: most programming education focuses on what to learn rather than how to think. Syntax is easy to look up. Problem-solving intuition is not.
The Python course reflects this philosophy throughout. Every chapter teaches the concept, explains the reasoning behind it, shows where it breaks down, and connects it to the next idea in the sequence. The goal is not a learner who has finished 20 chapters — it is a learner who can sit in front of a blank editor and build something real.
Rohit has built curriculum for thousands of learners, with a focus on practical programming education and interview-ready problem solving. His teaching style combines precise technical explanations with the kind of context that makes concepts stick beyond the tutorial.
Frequently asked questions
Python course FAQs
Is this Python course completely free?
Yes. Every chapter, every example, every exercise linked from this course is free. No subscription, no payment, no trial period. Schoolabe's Python course is free permanently.
How long does it take to complete the Python course?
At 30 to 60 minutes per day, most learners complete all 20 chapters in 3 to 5 weeks. The total content is 850 minutes — just over 14 hours. Learners who already have some programming experience typically finish faster. There are no deadlines and no expiry — work at whatever pace suits you.
Do I need any prior coding experience?
No. Day 1 assumes you have never written a line of code. The course explains every concept from scratch, including things most tutorials assume you already know — like how an interpreter works, what a runtime error means, and why indentation matters in Python specifically.
What version of Python does this course use?
This course uses Python 3 — specifically Python 3.10 and above. Python 2 reached end-of-life in January 2020 and is no longer relevant for new learners. If you install Python from python.org today, you will get Python 3 by default.
Will this course prepare me for technical interviews?
The intermediate and advanced chapters — particularly functions, OOP, data structures, and algorithms — cover the patterns that appear most frequently in Python technical interviews. For dedicated interview preparation, the Python Interview Questions hub adds specific question patterns and explanation depth beyond what the course chapters cover.
What should I do after finishing all 20 chapters?
Three things, in this order: build a small project using the concepts from Days 10 to 23, work through the Python exercises for any topics that still feel uncertain, and review the Python interview questions if you are preparing for assessments or job applications. The course gives you the foundation — projects and practice are what convert that foundation into durable skill.
Is this course enough to get a job as a Python developer?
This course gives you the complete Python language foundation. Getting a job additionally requires: a portfolio of projects that demonstrate you can build real things, familiarity with at least one framework relevant to your target role (Django or FastAPI for backend, Pandas for data), and practice with the problem-solving format of technical interviews. This course is the essential first step — not the entire journey.
Can I use this course for university or placement preparation?
Yes. The course covers the core Python topics that appear in most university syllabi and placement assessments — data types, control flow, functions, OOP, file handling, and basic algorithms. The Python Quiz with 301 questions is particularly useful for placement test preparation.
Start learning today
Your first chapter is ready
7,113+ learners have already started this course. The first chapter takes 20 minutes. Everything you need is on this page.
Begin Day 1: Introduction to PythonAlready past Day 1? Jump to where you left off:
| If you know… | Start here |
|---|---|
| Variables and basic syntax | Day 3: Operators |
| Loops and conditionals | Day 10: Functions |
| Functions and OOP basics | Day 15: Exception Handling |
| Most of the above | Day 16: Advanced Data Structures |
All chapters
Each link opens a dedicated lesson page with unique, chapter-specific content (not duplicated from this overview).
Day 1: Introduction to Python
Beginner20 minWhat Python is, how it executes code line by line, setting up your environment, writing your first programs, and the four syntax rules that prevent 90% of beginner errors.
Day 2: Variables and Data Types
Beginner25 minHow Python stores information using integers, floats, strings, and booleans. Variable naming rules, type checking with type(), and converting between data types when your program needs a number but has a string.
Day 3: Operators and Expressions
Beginner30 minArithmetic operators, comparison operators (==, !=, <, >), logical operators (and, or, not), and operator precedence — the rules that determine which calculation Python performs first.
Day 4: Strings and String Methods
Beginner35 minText manipulation in Python. Slicing, indexing, f-string formatting, and the 15 string methods you will use constantly: split(), join(), strip(), replace(), find(), upper(), lower(), and more.
Day 5: Lists and List Methods
Beginner40 minPython's most-used data structure. Creating lists, accessing elements by index, modifying lists with append(), pop(), sort(), and reverse(), slicing sublists, and writing your first list comprehensions.
Day 6: Tuples and Sets
Beginner35 minWhen to use immutable sequences (tuples) versus unordered unique collections (sets). Tuple unpacking, set operations — union, intersection, difference — and the practical use cases that make each structure worth knowing.
Day 7: Dictionaries
Beginner35 minKey-value storage in Python. Creating dictionaries, reading and updating values, iterating with .keys(), .values(), and .items(), handling missing keys safely, and nesting dictionaries for structured data.
Day 8: Conditional Statements
Beginner40 minWriting programs that make decisions. if, elif, and else syntax, nested conditions, ternary expressions, and the logic patterns that appear in nearly every real Python program.
Day 9: Loops and Iteration
Beginner45 minAutomating repetition with for and while loops. The range() function, enumerate() for index-aware iteration, break and continue for flow control, nested loops, and common loop patterns like accumulation and searching.
Day 10: Functions
Intermediate50 minDefining reusable logic with def. Parameters, return values, default arguments, *args and **kwargs, variable scope, and why well-designed functions are the single biggest factor in code that is easy to read and maintain.
Day 11: Classes and Objects
Intermediate45 minIntroduction to object-oriented programming. Defining classes, creating objects, writing __init__ constructors, instance methods, class attributes versus instance attributes, and __str__ for readable object representations.
Day 12: Inheritance and Polymorphism
Intermediate50 minBuilding on existing classes without rewriting them. Single and multiple inheritance, super() for calling parent methods, method overriding, polymorphism in practice, and when to use inheritance versus composition.
Day 13: Modules and Packages
Intermediate40 minOrganising Python code across multiple files. The import system, importing specific functions with from ... import, creating your own modules, navigating the Python standard library, and installing third-party packages with pip.
Day 14: File Handling
Intermediate45 minReading from and writing to files. Text mode versus binary mode, read(), readline(), readlines(), write() and writelines(), context managers with with open(), and the safe patterns that prevent file corruption.
Day 15: Exception Handling
Intermediate40 minWriting programs that do not crash on bad input. try, except, else, finally, catching specific exceptions versus bare except, raising exceptions intentionally, and creating custom exception classes for cleaner error handling.
Day 16: Advanced Data Structures
Advanced50 min1 examplesBeyond lists and dicts. Stacks and queues with collections.deque, defaultdict for missing keys, Counter for frequency analysis, namedtuple for structured records, and the performance trade-offs that determine which structure to reach for.
Day 17: Basic Algorithms
Advanced55 min1 examplesImplementing and analysing core algorithms in Python. Linear search and binary search, bubble sort and insertion sort, merge sort with recursion, Big O notation for measuring efficiency, and how to evaluate which algorithm fits a given problem.
Day 21: Web Development Basics
Advanced60 min1 examplesHow web applications work under the hood. HTTP request and response cycles, routing, templating, and your first look at building a working web application in Python using a lightweight framework.
Day 22: Working with APIs
Advanced55 min1 examplesConnecting your Python programs to the outside world. Making HTTP requests with the requests library, parsing JSON responses, handling authentication and API keys, managing errors gracefully, and building a small project that consumes a real public API.
Day 23: Database Operations
Advanced60 min1 examplesPersisting data beyond program runtime. Connecting Python to SQLite using sqlite3, executing SQL queries from Python, performing full CRUD operations (Create, Read, Update, Delete), using parameterised queries to prevent SQL injection, and structuring database code cleanly.
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