Python Paradigm Multi-paradigm: object-oriented, procedural (imperative), functional, structured, reflective Designed by Guido van Rossum Developer Python Software Foundation First appeared February 20, 1991; 30 years ago Stable release 3.9.6 Edit this on Wikidata / 28 June 2021; 51 days ago Typing discipline Duck, dynamic, strong typing; gradual (since 3.5, but ignored in CPython) OS Windows, Linux/UNIX, macOS and more License Python Software Foundation License Filename extensions .py, .pyi, .pyc, .pyd, .pyo (prior to 3.5), .pyw, .pyz (since 3.5) Website www.python.org Major implementations CPython, PyPy, Stackless Python, MicroPython, CircuitPython, IronPython, Jython Dialects Cython, RPython, Starlark Influenced by ABC, Ada, ALGOL 68, APL, C, C++, CLU, Dylan, Haskell, Icon, Java, Lisp, Modula-3, Perl, Standard ML Influenced Apache Groovy, Boo, Cobra, CoffeeScript, D, F#, Genie, Go, JavaScript, Julia, Nim, Ring, Ruby, Swif Python is an interpreted high-level general-purpose programming language. Its design philosophy emphasizes code readability with its use of significant indentation. Its language constructs as well as its object-oriented approach aim to help programmers write clear, logical code for small and large-scale projects. Python is dynamically-typed and garbage-collected. It supports multiple programming paradigms, including structured (particularly, procedural), object-oriented and functional programming. It is often described as a "batteries included" language due to its comprehensive standard library. Guido van Rossum began working on Python in the late 1980s, as a successor to the ABC programming language, and first released it in 1991 as Python 0.9.0. Python 2.0 was released in 2000 and introduced new features, such as list comprehensions and a garbage collection system using reference counting. Python 3.0 was released in 2008 and was a major revision of the language that is not completely backward-compatible. Python 2 was discontinued with version 2.7.18 in 2020. Python consistently ranks as one of the most popular programming languages.