sage.graphs.bliss disappeared in SageMath 10.4

[Marc Culler]

A Sage_macOS user pointed out that

     from sage.graphs import bliss

produces a "Module not found" error.

In SageMath 10.3 the directory sage/venv/lib/python3.11/site-packages/sage/graphs contained both bliss.pyx and bliss.cpython-311-darwin.so.

But in 10.4 and 10.5 the corresponding directory only contains bliss.pyx.  Presumably the python extension module was created in 10.3 by running cython on bliss.pyx and compiling the result.  But that stopped happening in SageMath 10.4.

Does anyone know anything about this?

- Marc

[François Bissey]

It is now a separate optional package
https://pypi.org/project/sagemath-bliss/

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[Marc Culler]

Thanks.

- Marc