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luhenry
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Running pytest from {project}/tests puts the checked-out openTSNE/
source tree (no compiled .so) ahead of the installed wheel on
sys.path, so import openTSNE resolves to source and fails on
'from openTSNE import _tsne'. Stage tests/ + pyproject.toml into an
empty cwd instead (gotcha 25).
luhenry
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Sep 11, 2026
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opentsne1.0.4Compiles openTSNE's Cython/C++ t-SNE extensions (Barnes-Hut quad-tree, KL divergence, vendored Annoy nearest-neighbour index), OpenMP-parallel. Upstream publishes no riscv64 wheel.
Mirrors upstream's
azure-pipelines-release.ymlLinux job. setup.py probes for FFTW3 headers at build time and falls back to the numpy FFT implementation when absent, same as upstream's own manylinux wheels (no FFTW3 installed there either).Differs from upstream
Testing
unittest.skipIf.License: wheel bundles libgomp (GPLv3 with the GCC Runtime Library Exception) from the build image, so its sources are published with the release; also vendors Spotify's annoy (Apache-2.0), whose licence text was missing from the wheel, now shipped via a patch.
Patches
0001-ship-annoy-s-Apache-2.0-LICENSE-in-the-wheel-s-dist-.patch- To upstream [not filed]. Without it, the wheel carries no licence text for the vendored annoy extension. Reproduces off riscv64.Built on cp312; 145 passed, 27 skipped.