Python

Stable

Python is a general-purpose language known for readability, a vast standard library, and broad use across web development, data science, automation, and scripting.

Latest Version: 3.13
Release Date: January 15, 2026
Maintainer: Python Software Foundation
Type: Programming Language

Quick Links

Official Website Documentation GitHub Repository

Installation

brew install python@3.13

What's New in 3.13

New Features

Experimental free-threaded build (PEP 703) removing the GIL
New color-highlighted interactive interpreter (PEP 762)

Improvements

Better error messages for common `NameError`/`AttributeError` typos
`typing.TypeIs` for improved type-narrowing in static analysis

Performance

Continued incremental interpreter speedups
Lower memory overhead for the free-threaded build's reference counting

Bug Fixes

Fixed a `asyncio` task-cancellation edge case
Corrected `pathlib` behavior on case-insensitive filesystems

Breaking Changes

Migration Guide

Several long-deprecated modules removed
Modules deprecated since Python 3.11 (like the old `cgi` and `telnetlib`) were removed entirely - use the recommended third-party replacements listed in the migration guide.

Python 3.13 introduces an experimental free-threaded build (no GIL), a modernized interactive interpreter, and a JIT compiler groundwork - continuing multi-year performance work across the 3.11-3.13 line.