I think this very much depends on how many dependencies you have. The biggest issue with Free Threading are native libraries that HAVE TO be updated to support free threading - the C API changed and if you have not adapted your library to FT it will not work almost by default. We have not yet dared to try it in our CI in airflow - but I seriously doubt (with our 700+ dependencies) that it will succeed. Not sure how many dependencies you have in your CI - but if there are many native libraries, there is a high chance there will be errors. Also - if I were you - I'd try with 3.14 not 3.13t. The 3.13 was still highly experimental and quite a number of stdlib code was not free-threading compatible, you might be chasing a lot of red-herrings if you look at 3.13. In 3.14 you don't even need to use special build, you can enable free-threading by environment variable.
On Mon, Oct 20, 2025 at 5:30 PM Elijah ben Izzy < [email protected]> wrote: > Can at least try it out with tests to see what breaks! Our tests are > extremely comprehensive so I feel quite confident if they pass. Will take a > stab at it. > > On Sun, Oct 19, 2025 at 8:30 PM Stefan Krawczyk <[email protected] > > > wrote: > > > @charles yeah we might need to see what would be needed to make use of > free > > threaded python. Do we have any design assumptions that would make it > hard > > to adopt (we do have the fallback of the multithreaded executor/adapter > > though that should enable this easily). > > > > On Sun, Oct 19, 2025 at 4:38 PM cswartzvi (via GitHub) <[email protected]> > > wrote: > > > > > > > > cswartzvi commented on PR #1411: > > > URL: > > https://github.com/apache/hamilton/pull/1411#issuecomment-3420058618 > > > > > > @elijahbenizzy I am very excited for this! What do you think about > > > including freethreaded python in the actions matrix (`3.13t`)? Maybe we > > are > > > not ready to go on record as supporting free threading, but it might be > > > nice to keep an eye on it. What do you think? > > > > > > > > > -- > > > This is an automated message from the Apache Git Service. > > > To respond to the message, please log on to GitHub and use the > > > URL above to go to the specific comment. > > > > > > To unsubscribe, e-mail: [email protected] > > > > > > For queries about this service, please contact Infrastructure at: > > > [email protected] > > > > > > > > >
