osobhandClaude Opus 5.5
2d4b211523
ds[key] read the whole dataset and sliced it in numpy, and knew six dtypes. Keys (ints, positive-step slices, Ellipsis, one increasing index list, compound field names) now map onto hyperslab selections, and the facade's read_selection bytes become the numpy buffer without a copy (PyArray::from_vec viewed as the dtype). dtype mapping follows h5py for all integer/IEEE float widths and byte orders, bool, enum, complex, fixed and variable-length strings, vlen sequences, opaque, array types and (nested, padded) compounds; anything it cannot describe exactly is a TypeError. Attributes return what h5py returns; groups and files gain the rest of the h5py mapping interface. Reads run under py.detach. tests/test_read_vs_h5py.py compares >500 reads with h5py 3.16 on an h5py-written file, checks errors match, that a damaged chunk outside the selection is never touched, and 8 threads reading at once. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
19 lines
545 B
Python
19 lines
545 B
Python
"""Shared fixtures for the clawhdf5 Python binding tests."""
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import os
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import pytest
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@pytest.fixture(scope="session")
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def h5py():
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"""h5py, or a skip — unless CLAWHDF5_REQUIRE_INTEROP=1, which makes a
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missing h5py a failure (as for the Rust interop suites)."""
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try:
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import h5py as mod
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except ImportError:
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if os.environ.get("CLAWHDF5_REQUIRE_INTEROP") == "1":
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pytest.fail("h5py is required (CLAWHDF5_REQUIRE_INTEROP=1) but not importable")
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pytest.skip("h5py not installed")
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return mod
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