Hello, Cythonizing a package, via setuptools, that uses a `from sage.foo cimport bar` seems to no longer work with Sage 10.2.beta8
Here is a minimal example: sage -pip install git+https://github.com/edgarcosta/pyfib.git@main here is the error log: https://gist.github.com/edgarcosta/a0a189839c9053c30a33f60435431957 Note, that one can also try to install the package without the `from sage.rings.integer cimport Integer`, via sage -pip install git+https://github.com/edgarcosta/pyfib.git@nosage and then everything works as expected. I believe this has something to do with PEP-420 and the recent upgrade to Cython3.0 https://cython.readthedocs.io/en/latest/src/userguide/migrating_to_cy30.html#namespace-packages Furthermore, by looking at commits like this one https://github.com/sagemath/sage/pull/36110/commits/cb78fd95b03678f821bc575c683feb74f860105c it gives me the idea that there is something to do with relative imports, but I am not sure. Any insight would be appreciated, as all my Cython pip installable packages fail exactly the same way. Cheers, Edgar -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CA%2BiQ7x5sJOJhBynnkcQCa9MwrnZ3Vfjw4q2Vh7yn6XU%3DyaQhaw%40mail.gmail.com.