[NEP-001 Feature] byte-identical port np.save/np.load and variants in NumPy 2.4.2#617

Merged

Nucs merged 17 commits into

worktree-npsave

Jul 17, 2026

Commits on Jul 17, 2026

feat: Complete rewrite of np.save/np.load for 100% NumPy format compatibility
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test: Add NumPy cross-compatibility tests
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test: Add format version 2.0/3.0 tests and fix test paths
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fix: Account for Shape.offset when saving non-contiguous sliced arrays
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test: add NumPy-generated test files for version 2.0/3.0 format testing
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fix: Adapt np.save/np.load for long indexing branch
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fix: Handle long[] shape in growth axis padding for np.save
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fix(io): port the np.save/np.load rewrite onto current master
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feat(io): rewrite np.save/np.load as a NEP-01 port — byte-identical to NumPy 2.4.2
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fix(io): 3 NumPy mismatches found by differential-fuzzing np.save/np.load
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fix(io): complete the npz name-map and hostile-header fixes; mutation-test both
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fix(io): npz members >2GB failed to load; stream them instead of buffering
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test(io): a truncated file is a FORMAT error, not an EOF
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test(io)!: 13 npy fixture tests were passing while asserting nothing
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docs(website): document the rewritten .npy/.npz np.* I/O in the NDArray guide
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test(docs): executable coverage for every NDArray guide example (+ fix 4 stale ones)
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test(docs): deepen NDArray-guide coverage to view/copy/read-only semantics (+ fix 5 more)
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