GH-49384: [Python] Respect copy=True in ChunkedArray.__array__#50561
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jingyi-zhao-01 wants to merge 2 commits into
Open
GH-49384: [Python] Respect copy=True in ChunkedArray.__array__#50561jingyi-zhao-01 wants to merge 2 commits into
jingyi-zhao-01 wants to merge 2 commits into
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Rationale for this change
ChunkedArray.__array__(copy=True)should respect NumPy's copy request. For a single-chunkChunkedArray, the current path can return a zero-copy read-only NumPy view instead.Closes #49384.
What changes are included in this PR?
ChunkedArray.__array__(copy=True)return a real NumPy copy.Are these changes tested?
Yes:
Are there any user-facing changes?
Yes.
np.array(pa.chunked_array([[...]]), copy=True)now returns a writable copied NumPy array, matching the behavior users expect fromcopy=True.AI assistance
I used an AI coding assistant while preparing this patch. I reviewed the change myself, kept it scoped to
ChunkedArray.__array__, and verified it with the focused PyArrow table tests above.