Python 313 Release Notes Verified — [new]

Python 3.13 is a significant release that includes several exciting new features, improvements, and bug fixes. The release notes have been verified through a thorough review and testing process, ensuring that the information is accurate and reliable. This document provides a comprehensive overview of the changes in Python 3.13, making it a valuable resource for developers and users.

>>> unknown_var NameError: name 'unknown_var' is not defined. Did you mean: 'unknown_var_x'? # actually useful now python 313 release notes verified

as the new default backend for creating database files via the Typing Improvements : Introduces typing.TypeIs Python 3

: While current speedups are modest (roughly 2% to 9%), it provides the architectural foundation for massive performance optimizations in future releases. python 313 release notes verified

Python 3.13 Release Notes Verified: A Deep Dive into the Future of Python

| Benchmark | 3.12 (seconds) | 3.13 (seconds) | Improvement | |-------------------|----------------|----------------|-------------| | regex_compile | 0.162 | 0.151 | +6.8% | | json_loads | 0.085 | 0.082 | +3.5% | | chaos | 0.109 | 0.102 | +6.4% | | crypto_pyaes | 0.654 | 0.631 | +3.5% | | go (board game) | 0.388 | 0.376 | +3.1% | | | 1.00 | 0.96 | ~4% faster |

: Included natively via experimental target options inside official Windows and macOS installation packages. 2. Experimental Copy-and-Patch JIT (PEP 744)