Verified 'link': Python 313 Release Notes

sudo add-apt-repository ppa:deadsnakes/ppa sudo apt update sudo apt install python3.13

Python 3.13 introduces two of the most significant architectural changes in the language's recent history:

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: python 313 release notes verified

There has been a lot of noise about Python "finally getting a JIT." The reality, verified against the 3.13 release notes, is more nuanced.

: Pressing F1 instantly fires up an interactive help browser with its own detached history timeline. Pressing F2 scrolls cleanly through history, stripping out raw >>> prompts for fast code review. : Pressing F1 instantly fires up an interactive

Verified benchmarks, however, reveal the current state of this trade-off. The free-threaded build comes with a —around 30-40% slower in Python 3.13. This overhead is primarily due to the addition of atomic operations and biased reference counting throughout the interpreter to ensure thread safety without the GIL.

To verify Python 3.13 on your system:

if:

– The typing.override decorator now raises errors if the method does not actually override a parent method. The free-threaded build comes with a —around 30-40%

: Pressing F3 opens a clean paste mode that safely preserves indentation, while F2 switches into history view to isolate clean code blocks without >>> prompts.