Hi It seems (at least in scipy/1.10.1-6), that python3-pythran was a build-dependency for all architectures [1], yet, on armhf, python3-scipy did not have a runtime dependency on python3-pythran [2].
The build log of scipy/1.10.1-6 on armhf [3], confirms: Building scipy with SCIPY_USE_PYTHRAN=1 I do not recall seeing any bug reports or autopkgtest failures due to this. Is it possible that scipy can be built with Pythran support, and python3-pythran can be an optional dependency at runtime? If this is true, then we can downgrade python3-pythran from a Depends to a Recommends. Regards Graham [1] https://salsa.debian.org/python-team/packages/scipy/-/blob/debian/1.10.1-6/debian/control?ref_type=tags#L28 [2] https://salsa.debian.org/python-team/packages/scipy/-/blob/debian/1.10.1-6/debian/control?ref_type=tags#L54 [3] https://buildd.debian.org/status/fetch.php?pkg=scipy&arch=armhf&ver=1.10.1-6&stamp=1701791801&raw=0
