Pythran has been an opt-out build dependence since SciPy 1.7; we’ve been toying with the idea of removing the opt-out for a while (way longer than the RFC issue exists).
I propose to make this official for 1.14.
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We haven’t had many issues with Pythran in the last 2 years, and the ones we did have were resolved pretty swiftly. So from that perspective it seems fine to make Pythran required.
I did have a quick search for use of -Duse-pythran=false, and found that two distros build with that flag set by default:
- Termux: https://github.com/termux/termux-packages/blob/ and https://github.com/knyipab/tur/blob/ce123f82206744f77dfb7166c5d2a21c25dacefd/tur/python-scipy/build.sh#L31fa856888326f1087c31feaaf15164984f872d3fb/packages/python-scipy/build.sh#L22
- PTXdist: ptxdist/rules/python3-scipy.make at 65365688811e7081a6b604be1f41c5ccdaf7e75a · LeSpocky/ptxdist · GitHub
Before taking this decision, it should be investigated what the problem exactly is there.