New implementation of builtin types merged into master

[Pierre Quentel]

Is Friday the 13th a good day to publish a radically new version of Brython ? Time will tell. Anyway, I have merge the branch I was working on since December into master, so it becomes the current working version, available for testing. I don't publish a new release (3.14.1) before a few days in case major bugs are detected.

I have created a wiki page to explain how builtin types are now implemented.

Performance is worse than the previous version, it was not the main objective, but I am confident that improvements are possible, it will be my priority for the next weeks.

As always, feedback and bug reports are very much appreciated !

Cheers,
Pierre

[ben levitt]

Thank you!  Almost everything is working for me.

I just filed 2 bugs that I'm seeing with the new code:

https://github.com/brython-dev/brython/issues/2669

https://github.com/brython-dev/brython/issues/2670

Cheers,

Ben

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[Pierre Quentel]

Le samedi 14 mars 2026 à 03:02:37 UTC+1, ben...@gmail.com a écrit :

Thank you!  Almost everything is working for me.

I just filed 2 bugs that I'm seeing with the new code:

https://github.com/brython-dev/brython/issues/2669

https://github.com/brython-dev/brython/issues/2670

Cheers,

Ben

Thanks Ben, that's good news ! Both bugs were easy to fix.