pitrou commented on code in PR #37797:
URL: https://github.com/apache/arrow/pull/37797#discussion_r1345656393
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python/pyarrow/array.pxi:
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@@ -1699,6 +1711,81 @@ cdef class Array(_PandasConvertible):
c_type))
return pyarrow_wrap_array(c_array)
+ def __arrow_c_array__(self, requested_schema=None):
+ """
+ Get a pair of PyCapsules containing a C ArrowArray representation of
the object.
+
+ Parameters
+ ----------
+ requested_schema : PyCapsule | None
+ A PyCapsule containing a C ArrowSchema representation of a
requested
+ schema. PyArrow will attempt to cast the array to this data type.
+ If None, the array will be returned as-is, with a type matching the
+ one returned by :meth:`__arrow_c_schema__()`.
+
+ Returns
+ -------
+ Tuple[PyCapsule, PyCapsule]
+ A pair of PyCapsules containing a C ArrowSchema and ArrowArray,
+ respectively.
+ """
+ cdef:
+ ArrowArray* c_array = <ArrowArray*> malloc(sizeof(ArrowArray))
+ ArrowSchema* c_schema = <ArrowSchema*> malloc(sizeof(ArrowSchema))
Review Comment:
Doing the mallocs here implies a memory leak (albeit minor) if we raise an
exception without creating the capsules.
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