Dear Debian Pythonistas,the NumPy 2 transition is now on its way, and while many packages seem to rebuild quite nicely, there are a few gotchas I'd like to point out, so everyone does not need to figure this out on their own.
1. We did some work to improve cross build support in NumPy [1], which means that dh-sequence-numpy3 can no longer pull the native Python module. If you encounter weird ModuleNotFoundErrors, you probably need to add python3-numpy as an explicit dependency.
2. The NumPy module hierarchy has changed in a way that breaks code trying to compute the include path to the NumPy headers on its own. If you encounter build errors where GCC fails to find headers such as numpy/arrayobject.h, make sure you use the intended API to configure the build [2].
3. Lintian has yet to catch up with the changed virtual package for the NumPy ABI [3], so you might see a few spurious
"missing-dependency-on-numpy-abi" diagnostics. Cheers Timo [1] https://bugs.debian.org/1076236[2] https://numpy.org/doc/stable/reference/generated/numpy.get_include.html
[3] https://bugs.debian.org/1094364 -- ⢀⣴⠾⠻⢶⣦⠀ ╭────────────────────────────────────────────────────╮ ⣾⠁⢠⠒⠀⣿⡁ │ Timo Röhling │ ⢿⡄⠘⠷⠚⠋⠀ │ 9B03 EBB9 8300 DF97 C2B1 23BF CC8C 6BDD 1403 F4CA │ ⠈⠳⣄⠀⠀⠀⠀ ╰────────────────────────────────────────────────────╯
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