Programming Languages


Complete Python Developer in 2021: Zero to Mastery

How to become a Python 3 Developer and get hired! Build 12+ projects, learn Web Development, Machine Learning + more!

4.67 (24093 reviews)



30.5 hours


Jan 2021

Last Update
Regular Price

What you will learn

Become a professional Python Developer and get hired

Master modern Python 3.9(latest) fundamentals as well as advanced topics

Learn Object Oriented Programming

Learn Function Programming

Build 12+ real world Python projects you can show off

Learn how to use Python in Web Development

Learn Machine Learning with Python

Build a Machine Learning Model

Learn Data Science - Analyze and Visualize Data

Build a professional Portfolio Website

Use Python to process: Images, CSVs, PDFs, and other Files

Build a Web Scraper with Python and BeautifulSoup

Use Python to send Emails and SMS

Use Python to build a Twitter bot

Learn to Test, Debug and Handle Errors in your Python programs

Learn best practices to write clean, performant, and bug free code

Learn to use Selenium and Python in Automation

Set up a professional workspace with Jupyter Notebooks, PyCharm, VS Code + more




Become a modern and complete Python developer! Join a live online community of over 400,000+ developers and a course taught by an industry expert that has actually worked both in Silicon Valley and Toronto. This is a brand new Python course just launched this year (updated this month)! Graduates of Andrei’s courses are now working at Google, Tesla, Amazon, Apple, IBM, JP Morgan, Facebook, + other top tech companies.

Learn Python from scratch, get hired, and have fun along the way with the most modern, up-to-date Python course on Udemy (we use the latest version of Python). This course is focused on efficiency: never spend time on confusing, out of date, incomplete Python tutorials anymore.

This comprehensive and project based course will introduce you to all of the modern skills of a Python developer (Python 3) and along the way, we will build over 12 real world projects to add to your portfolio (You will get access to all the the code from the 12+ projects we build, so that you can put them on your portfolio right away)!

The curriculum is going to be very hands on as we walk you from start to finish of becoming a professional Python developer. We will start from the very beginning by teaching you Python basics and programming fundamentals, and then going into advanced topics and different career fields in Python so you can get real life practice and be ready for the real world.

The topics covered in this course are:

- Programming Fundamentals

- Python Basics

- Python Fundamentals

- Data Structures

- Object Oriented Programming with Python

- Functional Programming with Python

- Lambdas

- Decorators

- Generators

- Testing in Python

- Debugging

- Error Handling

- Regular Expressions

- Comprehensions

- Modules

- Virtual Environments

- Developer Environments (PyCharm, Jupyter Notebooks, VS Code, Sublime Text + more)

- File Processing: Image, CSV, PDFs, Text + more

- Web Development with Python

- Machine Learning with Python

- Data Science with Python

- Automation with Python and Selenium

- Scripting with Python

- Web Scraping with Python and BeautifulSoup

- Image Detection

- Data Visualizations

- Kaggle, Pandas, NumPy, scikit-learn

- Email and SMS with Python

- Working with APIs (Twitter Bot, Password Checker, Translator)

By the end of this course, you will be a complete Python developer that can get hired at large companies. We are going to use Python to work with Email, Text Messages, CSV files, PDF files, Image Files, Data Visualizations, build our own machine learning model and perform Image detection. We are going to build a web scraper for HackerNews, build a Twitter bot,  build the most secure password checker and we will also build some automation tools using Selenium. But the best part? We will build an actual portfolio website using Python that your future employer and customers can contact you at. By the end, you will have a stack of projects you have built that you can show off to others.

Here’s the truth: Most courses teach you Python and do just that. They show you how to get started. But the thing is you don’t know where to go from there or how to build your own projects.

Whether you are new to programming, or want to level up your Python skills, or are coming from a different programming language, this course is for you. This course is not about making you just code along without understanding the principles so that when you are done with the course you don’t know what to do other than watch another tutorial. No! This course will push you and challenge you to go from an absolute beginner with no coding experience to someone that can go off, forget about me, and build their own applications and get hired.

Taught By:

Andrei Neagoie is the instructor of the highest rated Development courses on Udemy as well as one of the fastest growing. His graduates have moved on to work for some of the biggest tech companies around the world like Apple, Google, Amazon, JP Morgan, IBM, UNIQLO etc... He has been working as a senior software developer in Silicon Valley and Toronto for many years, and is now taking all that he has learned, to teach programming skills and to help you discover the amazing career opportunities that being a developer allows in life. 

Having been a self taught programmer, he understands that there is an overwhelming number of online courses, tutorials and books that are overly verbose and inadequate at teaching proper skills. Most people feel paralyzed and don't know where to start when learning a complex subject matter, or even worse, most people don't have $20,000 to spend on a coding bootcamp. Programming skills should be affordable and open to all. An education material should teach real life skills that are current and they should not waste a student's valuable time.   Having learned important lessons from working for Fortune 500 companies, tech startups, to even founding his own business, he is now dedicating 100% of his time to teaching others valuable software development skills in order to take control of their life and work in an exciting industry with infinite possibilities. 

Andrei promises you that there are no other courses out there as comprehensive and as well explained. He believes that in order to learn anything of value, you need to start with the foundation and develop the roots of the tree. Only from there will you be able to learn concepts and specific skills(leaves) that connect to the foundation. Learning becomes exponential when structured in this way. 

Taking his experience in educational psychology and coding, Andrei's courses will take you on an understanding of complex subjects that you never thought would be possible.  

See you inside the course!


Complete Python Developer in 2021: Zero to Mastery
Complete Python Developer in 2021: Zero to Mastery
Complete Python Developer in 2021: Zero to Mastery
Complete Python Developer in 2021: Zero to Mastery



Course Outline

Join Our Online Classroom!

Exercise: Meet The Community

Python Introduction

What Is A Programming Language

Python Interpreter

How To Run Python Code

Note: Jumping To Developer Environment

Our First Python Program

Python 2 vs Python 3

Why So Many Languages?

Exercise: How Does Python Work?

ZTM Python Cheat Sheet

Python Developer Monthly

Python Basics

Learning Python

Python Data Types

Latest Version Of Python

How To Succeed


Math Functions


Operator Precedence

Exercise: Operator Precedence

Optional: bin() and complex


Expressions vs Statements

Augmented Assignment Operator


String Concatenation

Type Conversion

Escape Sequences

Formatted Strings

String Indexes


Built-In Functions + Methods


Exercise: Type Conversion


Exercise: Password Checker


List Slicing


List Methods

List Methods 2

List Methods 3

Common List Patterns

List Unpacking




Dictionary Keys

Dictionary Methods

Dictionary Methods 2


Tuples 2


Sets 2

Python Basics II

Breaking The Flow

Conditional Logic

Indentation In Python

Truthy vs Falsey

Ternary Operator

Short Circuiting

Logical Operators

Exercise: Logical Operators

is vs ==

For Loops


Exercise: Tricky Counter



While Loops

While Loops 2

break, continue, pass

Our First GUI


Exercise: Find Duplicates


Parameters and Arguments

Default Parameters and Keyword Arguments


Exercise: Tesla

Methods vs Functions


Clean Code

*args and **kwargs

Exercise: Functions


Scope Rules

global Keyword

nonlocal Keyword

Why Do We Need Scope?

Python Exam: Testing Your Understanding

Developer Environment

MAC - Python Install

WINDOWS - Python Install

WINDOWS - Get Terminal

LINUX - Python Install

Python Developer Tools

Sublime Text

Quick Note: Upcoming Video

Optional: Terminal Commands

iTerm Setup

Using the Command Line/Terminal

Visual Studio Code


Code Formatting - PEP 8

Quick Note: Jupyter Notebooks

Jupyter Notebooks

Section Review

Advanced Python: Object Oriented Programming

Note on Upcoming Sections

What Is OOP?

What is OOP? Part 2

Creating Our Own Objects

Attributes and Methods


Exercise: Cats Everywhere

@classmethod and @staticmethod

Reviewing What We Know So Far




Private vs Public Variables


Inheritance 2


Exercise: Pets Everywhere


Object Introspection

Dunder Methods

Exercise: Extending List

Multiple Inheritance

MRO - Method Resolution Order

Advanced Python: Functional Programming

Functional Programming

What Is Functional Programming?

Pure Functions





Exercises: map, filter, zip, reduce

Lambda Expressions

Exercise: Lambda Expressions

List Comprehensions

Set and Dictionary Comprehension

Exercise: Comprehensions

We Still Have More To Go!

Advanced Python: Decorators


Higher Order Functions

Decorators 2

Decorators 3

Why Do We Need Decorators?

Exercise: @authenticated

Advanced Python: Error Handling

Errors in Python

Error Handling

Error Handling 2

Exercises: Error Handling

Error Handling 3

Advanced Python: Generators


Generators 2

Generators Performance

Under The Hood Of Generators

Exercise: Fibonacci Numbers

Python Exam: Testing Your Understanding

100 Python Exercises

Modules In Python

Modules In Python

Packages In Python

Different Ways To Import


Python Built-in Modules

Python Built-in Modules 2

Exercise: Guessing Game

Python Package Index

pip install

Virtual Environments

Useful Modules

Interesting Tidbit: Python Dictionaries

Useful Modules 2


Debugging In Python

How To Debug Code

File I/O

Working With Files In Python

Read, Write, Append

File Paths

File IO Errors

Exercise: Translator

Regular Expressions

Regular Expressions

Regular Expressions 2

Exercises: Interactive RegEx

Regular Expressions 3

Exercise: Password Validation

Exercise: Password Validation 2

Testing In Python

Testing Introduction


Writing Unit Tests

Writing Unit Tests 2

Exercise: Testing

Career Of A Python Developer

Python Careers

Endorsements On LinkedIn

Quick Note: Upcoming Video

What If I Don't Have Enough Experience?

Learning Guideline

Python 3.8: Latest Features In Python

Now What??

Scripting with Python

Section Overview

What Is Image Processing?


Images With Python

Images With Python 2

Images With Python 3

Exercise: JPG to PNG Pokedex Converter

Quick Note: Github

Solution: JPG to PNG Pokedex Converter


PDFs With Python

Exercise: PDF Merger

Exercise: Watermarker

Solution: Watermarker

Sending Emails With Python

Sending Emails With Python 2

Sending Emails With Python 3

Password Checker Project

How Hackers Work

Password API

Quick Note: Upcoming Video

Optional: Hash Function

Password Checker

Password Checker 2

Password Checker 3

Password Checker 4

Twitter API

Our First Twitter Bot

Our First Twitter Bot 2

Our First Twitter Bot 3

Our First Twitter Bot 4

SMS With Python

SMS With Python 2

SMS With Python 3

Scraping Data with Python

Web Scraping Introduction

Web Scraping and APIs

How Googlebot Works

Our Hacker News Project

Requesting Data

BeautifulSoup Basics

BeautifulSoup Selectors

Hacker News Project

Hacker News Project 2

Hacker News Project 3

Solution: Hacker News Project 3

What To Do Next With Scraping?

Web Development with Python

Section Overview

How Websites Work

How Websites Work 2

Building Our First Server

Setting Up Flask

Building A Flask Server

Flask Templates

Flask Static Files


Templating Engine

URL Parameters

MIME Types

Building A Portfolio

FREE HTML Templates

Building A Portfolio 2

Building A Portfolio 3

Building A Portfolio 4

HTML Forms

Building A Portfolio 5

Building A Portfolio 6

Building A Portfolio 7

Quick Fix: newline

Quick Note About Databases

Upcoming Video

Optional: How Databases Work

Building A Portfolio 8

Building A Portfolio 9

Bonus Exercise: Customize Your Portfolio


Section Overview

Selenium Introduction

Selenium Basics

Selenium Basics 2

Selenium Basics 3

Machine Learning + Data Science

Section Overview

AI/Machine Learning/Data Science

How Machine Learning Works

History Of Data

Types of Machine Learning

Machine Learning 101

Tools In Machine Learning

Data Science 1

Data Science 2

Data Science 3

Machine Learning 1

Machine Learning 2

Optional: K Nearest Neighbour

Machine Learning 3

Machine Learning 4

Machine Learning 5

Machine Learning 6

Exercise: ReallySmartBrain

My Favourite Machine Learning Resource

Where To Go From Here?

Become An Alumni

Thank You

Contribute To The Cheat Sheet!

Bonus: Extra Bits

Quick Note: Upcoming Videos

CWD: Git + Github

CWD: Git + Github 2

Contributing To Open Source

Contributing To Open Source 2

Exercise: Contribute To Open Source

Coding Challenges

Quick Note: Upcoming Videos

JTS: Learn to Learn

JTS: Start With Why

Quick Note: Next Video

My Terminal Setup

My Terminal Setup 2

AMA - 1,000 Students!!

AMA - 100,000 Students!!

Bonus: HTML Forms

Quick Note: Upcoming Videos

HTML Forms

HTML Forms 2

Submitting A Form


Bonus: Special Thank You Gift


Joshua10 October 2020

The Python was great teaching but by the end when it comes to Machine Learning and Data Science.. He just speeded it up real fast but when it comes to Python, it is the best course. I totally understand everything. Very neatly explained.

John8 October 2020

This is a comprehensive Python course, with detailed instructions on setting up and using lots of supporting applications, introduces libraries in multiple business areas and has links to huge wealth of extra online resources. Then of course there's Andrei Neagoie himself, who's teaching technic, work and study ethic and healthy adventurous life is inspiring.

Kenneth8 October 2020

El curso me esta encantando, la forma en que enseña Andrei es bastante comprensible, sin embargo, me encantaria que tuviera subtitulos en español para tener una mayor comprension del tema.

Patrick7 October 2020

The lecturer is deeply explaining every thing in details, I realy love it and I am being devoted to python.

Erick5 October 2020

This course is easy to follow and understand even for beginners. Will give this course 4/5 only bc it has videos that are not Python related. Some of these vids are long and it’s tedious to watch. I need to finish watching so it’ll be counted as training hours at work. Another suggestion to the instructor is that naming conventions should be observed and not just come up with random names.

Ahmed27 February 2020

well survey is at beginning, so kinda early to tell. but i like the detailed and step by step bring up of the lessons.

Jaya27 February 2020

I am starting from zero in programming as this my first language but still now I am feeling confident that I can do it.

Nirmal27 February 2020

in every section, you will get something interesting, it is recommended for all level of expertise in python (including zero knowledge in coding), the content were engaging, anyway I pretty much enjoy learning from Andrei :)

Dr.26 February 2020

Great so far. I am taking this course to see if I can recommend it to my students so that they can get quickly familiar with the language and to tell you the truth I sure will. I am in the section of debugging now. Two essential concepts that should also be present and students need to know them recursion and threading. I am not sure if they will be covered infuture sections . Overall it is simply a great comprehensive course! Very good job!

Mark25 February 2020

the teacher is great! he explains everything so well! amazed at how detailed this course is! I am impressed!. Highly recommended!

Aditya24 February 2020

Andrei is absolutely amazing! He makes learning fun and easy. The course structure was great too. It included so much right from the scratch to knowing how the advanced concepts work. He even gave developer tips every now and then which are really helpful. I am really glad I took this course:)

Santi23 February 2020

happy to know that they have a community as I have been doing some other courses from Udemy they do not have it :)

Rodrigo23 February 2020

It is a very interactive course that teaches you from the begining till the details. I think I have invested my money very well.

Javano23 February 2020

Such a great course. Andrei knows how to explain concepts very well and explaining when they're used. Total recommended. He also has a machine learning course, so I wanna complete this before moving onto that. RECOMMENDED!

Thomas22 February 2020

This course is really amazing for me because I have learned about how to use python programming from basic to advanced. In addition to that, one of the best section that I liked was about Machine Learning + Data Science which are really interested for me to learn more about this topic in the next course !!!


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