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ProjectPy

Python documentation designed for beginners and newcomers.

Learn Python step by step with simple explanations, hands-on examples, and easy-to-follow guides. From writing your very first line of code to exploring the standard library, building real projects, and understanding advanced topics — everything is clear, practical, and approachable.

Start Learning Install Python Cheat Sheet Coverage Matrix
hello.py
Python 3.14 
print("Hello, World!")
>>> Hello, World!

Maintained by Souhardya Das · Community contributions welcome

Home

What's in Here

  • Tutorial

    Start here. Step-by-step from zero — installation, basic syntax, data structures, functions, OOP, and advanced patterns.

    Explore Tutorial

  • Standard Library

    The batteries-included modules: pathlib, datetime, re, json, threading, asyncio, and 30+ more covered in depth.

    Browse Modules

  • Language Reference

    The formal spec — lexical analysis, data model, execution model, expressions, statements, and the full grammar.

    View Grammar Spec

  • HOWTOs

    Practical deep-dives: regex, sorting, logging, Unicode, descriptors, functional programming, and more.

    Read HOWTOs

  • FAQs

    Answers to the most common Python questions — general, programming, design, library, Windows, and GUI.

    Read Answers

  • What's New

    Every language change since Python 3.9 — new syntax, removed features, deprecations, and migration notes.

    Check Releases

  • Setup and Usage

    Command-line flags, environment variables, Python on Windows / macOS / Linux, virtual environments, and IDEs.

    Setup Guide

  • Packaging

    pip, PyPI, venv, building your own packages, and distributing software to the community.

    Packaging Guide

  • Developer Guide

    Extending Python with C, using the Python/C API, and understanding how CPython works under the hood.

    Developer Docs

  • Troubleshooting

    Common runtime errors explained — SyntaxError, TypeError, AttributeError, and actionable steps to resolve them.

    Find Solutions

  • Coverage Status

    See all 230+ Python standard library modules at a glance — what's documented, what's partial, and what's planned.

    View Coverage Matrix

  • Contribute

    Help improve ProjectPy — fix typos, contribute examples, write module guides, or design visual diagrams.

    Contribution Guide

Quick Example

Example — Your first Python program 
name = input("What's your name? ")
print(f"Hello, {name}! Welcome to Python.")
Output
What's your name? Alex Hello, Alex! Welcome to Python.

Target Python Version

This documentation targets Python 3.14 (the latest stable release). All code examples are verified against it. Version-specific features are marked with badges like 3.10+.

Covered Versions

Version Status Documentation Scope
3.14 Latest Stable Complete coverage across tutorials and stdlib
3.13 Security Fixes What's New and compatible stdlib features
3.12 Security Fixes What's New and compatible stdlib features
3.11 Maintenance What's New coverage
3.10 End of Life What's New coverage
3.9 End of Life What's New coverage

Open Source

ProjectPy is free open-source software released under the MIT License and maintained by Souhardya Das. If you spot an error, outdated content, or missing topic — open a pull request or read the contribution guide.