Python allows mandatory and optional arguments, keyword arguments, and even arbitrary argument lists. More about defining functions in Python 3 Experienced programmers in any other language can pick up Python very quickly, and beginners find the clean syntax and indentation structure easy to learn. Whet your appetite with our Python 3 overview.

Python versions before 3.14 are also signed using OpenPGP private keys of the respective release manager. In this case, verification through the release manager's public key is also possible.

Python 3.10.0 is the newest major release of the Python programming language, and it contains many new features and optimizations. Major new features of the 3.10 series, compared to 3.9

Python 3.9 is incompatible with this unsupported version of Windows. Major new features of the 3.9 series, compared to 3.8 Some of the new major new features and changes in Python 3.9 are: PEP 573, Module State Access from C Extension Methods PEP 584, Union Operators in dict PEP 585, Type Hinting Generics In Standard Collections

Python 3.13 is the newest major release of the Python programming language, and it contains many new features and optimizations compared to Python 3.12. 3.13.3 is the latest maintenance release, containing almost 320 bugfixes, build improvements and documentation changes since 3.13.2.

A new command-line interface to inspect running Python processes using asynchronous tasks. The pdb module now supports remote attaching to a running Python process. For more details on the changes to Python 3.14, see What’s new in Python 3.14. Build changes PEP 761: Python 3.14 and onwards no longer provides PGP signatures for release artifacts.

Status of Python versions ¶ The main branch is currently the future Python 3.16, and is the only branch that accepts new features. The latest release for each Python version can be found on the download page.

Pre-releases Python 3.15.0b3 - June 23, 2026 Download macOS installer Python 3.15.0b2 - June 2, 2026 Download macOS installer Python 3.15.0b1 - May 7, 2026 Download macOS installer Python 3.14.5rc1 - May 4, 2026 Download macOS installer Python 3.15.0a8 - April 7, 2026 Download macOS installer Python 3.15.0a7 - March 10, 2026 Download macOS installer Python 3.15.0a6 - Feb. 11, 2026 Download ...