reassign 1088310 python3-gyoto notfound 1088310 2.0.2-4+b2 thanks
The point is that this test was ran with with python3-defaults that includes python3.13, but this version of python3-gyoto had been built earlier with a version of python3-all-dev that did not include it.
This has been fixed by rebuilding Gyoto. Version 2.0.2-4+b2 is not affected. I'm closing this bug. Cheers.