Outline of the Python programming language

The following outline is provided as an overview of and topical guide to Python:

Python is a general-purpose, interpreted, object-oriented, multi-paradigm, and dynamically typed programming language known for its readable syntax and broad standard library. Python was created by Guido van Rossum and first released in 1991. It emphasizes code readability and developer productivity.

What type of language is Python?

• Programming language — artificial language designed to communicate instructions to a machine.
• Object-oriented programming — built primarily around objects and classes.
• Functional programming — supports functions as first-class objects.
• Scripting language — often used for automation and small programs.
• General-purpose programming language — designed for a wide variety of application domains.
• Dynamically typed — type checking occurs at runtime.
• Interpreted language — code is executed by an interpreter.
• Multi-paradigm — supports procedural, object-oriented, and functional programming.

History of Python

See also: History of Python

• ABC (programming language) – precourser to Python
• Python started by Guido van Rossum in 1989, first released in 1991.
• Python 2 — major version released in 2000, officially retired in 2020.
• Python 3 — released in 2008

General Python concepts

See also: Python syntax and semantics

• Classes
• Comments and docstrings
• Context manager
• Data types
• Decorators
• Exceptions
• Functions
• Garbage collection
• Generators
• Indentation
• Interpreter
• Iterators
• Lambda expressions
• Literals
• Modules and import statements
• Objects
• Operators in Python
• Package management (pip)
• Python standard library
• Variables and Strings

Issues and limitations

• Performance — slower than compiled languages like C or Java, can be mitigated by C extensions or JIT compilers (PyPy).
• Global interpreter lock — limits parallel CPU-bound threads in CPython
• Memory consumption — high memory use compared to some lower-level languages
• Version compatibility — Python 2 vs Python 3 differences caused migration issues

Python implementations

See also: List of Python implementations

• CPython — reference implementation in C
• IronPython — Python for .NET
• Jython — Python for the JVM
• MicroPython — Python for microcontrollers and embedded systems
• Nuitka — compiler that packages user code with CPython into a static binary
• PyPy — JIT-compiled Python interpreter for speed
• PythonAnywhere — freemium hosted Python installation that runs in the browser
• Stackless Python — Python with lightweight concurrency features

Python toolchain

TIOBE Index

Python stands at the top as of September 2025

• List of Python software
• Comparison of Python IDEs
• Comparison of server-side web frameworks for Python
• List of Python frameworks
• List of Python libraries
• List of unit testing frameworks for Python
• Python Package Index

Notable projects using Python

• YouTube (backend)
• Instagram (backend)
• Dropbox
• Reddit
• OpenStack
• Blender (scripting and plugins)
• SageMath
• NumPy
• Pandas
• TensorFlow

Python development communities

• ActiveState — commercial Python distributions and support
• Anaconda, Inc. — Python data science ecosystem
• GitHub
• Python Software Foundation
• Python Package Index (PyPI) — third-party software repository for Python

Example source code

• Articles with example Python code

Python publications

Books about Python

• Automate the Boring Stuff with Python – Creative Commons Python book
• Alex Martelli — Python in a Nutshell and Python Cookbook
• Mark Pilgrim – Dive into Python
• Naomi Ceder — The Quick Python Book
• Wes McKinney — Python for Data Analysis
• Zed Shaw – Learn Python the Hard Way

Textbooks

• Core Python Programming

Python programmers

• David M. Beazley
• Naomi Ceder
• John D. Hunter
• Glyph Lefkowitz
• Alex Martelli
• Wes McKinney
• Peter Norvig
• Travis Oliphant
• Fernando Pérez
• Tim Peters
• Mark Pilgrim
• Allison Randal
• Armin Ronacher
• Guido van Rossum
• Grant Sanderson
• Greg Stein

Python conferences

• EuroPython – annual Python conference in Europe
• PyCon – the largest annual convention for the Python community
• PyData – conference series focused on data analysis, machine learning, and scientific computing with Python
• SciPy Conferences – focused on the use of Python in scientific computing and research
• DjangoCon – a conference dedicated to the Django web framework
• PyOhio – a free regional Python conference held in Ohio

Python learning resources

See also: List of online integrated development environments

• Codecademy – interactive Python programming lessons
• GeeksforGeeks – tutorials, coding examples, and interactive programming for Python concepts and data structures.
• Kaggle – free Python courses focused on data science and machine learning.
• Python.org Tutorial – the official Python tutorial from the Python Software Foundation.
• Real Python – articles, tutorials, and courses for Python developers.
• W3Schools – beginner-friendly Python tutorials.
• Wikibooks Python Programming – free open-content textbook on Python.

Competitive programming

• Codeforces – an online platform for programming contests that supports Python submissions
• Codewars – gamified coding challenges supporting Python
• HackerRank – competitive programming and interview preparation site with Python challenges
• Kaggle – while focused on data science competitions, it also includes Python-based problem solving.
• LeetCode – online judge and problem-solving platform where Python is widely used

See also

• Outline of computer programming
• Outline of software
• Outline of software engineering
• List of programmers

External links

• Python.org — official site
• Python Documentation
• Python Package Index