Python 313 Release Notes Verified Online

What is the actual speed improvement for regular code (without the experimental JIT)? The Python core team publishes the pyperformance benchmark suite. Verified results from Python 3.13 vs 3.12:

For CPU-bound, multi-threaded workloads, this could remove the GIL bottleneck. However, the default build still uses the GIL. Expect performance improvements only in specific scenarios, and expect some single-threaded slowdowns (10-20% in early benchmarks). python 313 release notes verified

: Syntax and errors now feature default color support to improve readability. What is the actual speed improvement for regular

from typing import TypedDict, ReadOnly

A vastly improved REPL based on PyPy, featuring multi-line editing, color support, and colorized tracebacks by default. featuring multi-line editing