Python Tutorial

1. Python Introduction

What Python is, why it is so popular, and how to install it and run your first script.

2. Virtual Environments and Tooling

venv, pip and requirements.txt, and a look at modern tools like uv and poetry.

3. Python Syntax and Data Structures

Variables, indentation-based blocks, core types, lists, tuples, dicts, sets, comprehensions and slicing.

4. Python Functions and OOP

Defining functions, default and keyword arguments, *args/**kwargs, classes, inheritance and dunder methods.

5. Error Handling and Exceptions

try/except/else/finally, raising and re-raising, custom exception classes, and exception chaining with raise...from.

6. Files, Modules, and Packaging

Reading and writing files with with, pathlib and JSON, and organizing code into modules and packages with __init__.py.

7. Advanced Python

Generators, decorators, context managers, and an honest look at the GIL and when asyncio or multiprocessing help.

8. Testing with pytest

Writing test functions, asserting raised exceptions, fixtures for setup/teardown, and parametrized tests.

9. Python Interview Questions

Real Python interview questions and answers covering fundamentals, data structures, concurrency and decorators.