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Joris Van den Bossche authored and GitHub committed dc40e5fba1c
GH-39217: [Python] RecordBatchReader.from_stream constructor for objects implementing the Arrow PyCapsule protocol (#39218) ### Rationale for this change In contrast to Array, RecordBatch and Schema, for the C Stream (mapping to RecordBatchReader) we haven't an equivalent factory function that can accept any Arrow-compatible object and turn it into a pyarrow object through the PyCapsule Protocol. For that reason, this proposes an explicit constructor class method for this: `RecordBatchReader.from_stream` (this is a quite generic name, so other name suggestions are certainly welcome). ### Are these changes tested? TODO * Closes: #39217 Authored-by: Joris Van den Bossche <jorisvandenbossche@gmail.com> Signed-off-by: Joris Van den Bossche <jorisvandenbossche@gmail.com>