rok commented on code in PR #50203:
URL: https://github.com/apache/arrow/pull/50203#discussion_r3468529344
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python/pyarrow/src/arrow/python/python_to_arrow.cc:
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@@ -908,13 +908,33 @@ class PyListConverter : public ListConverter<T,
PyConverter, PyConverterTrait> {
Status AppendNdarray(PyObject* value) {
PyArrayObject* ndarray = reinterpret_cast<PyArrayObject*>(value);
- if (PyArray_NDIM(ndarray) != 1) {
- return Status::Invalid("Can only convert 1-dimensional array values");
- }
if (PyArray_ISBYTESWAPPED(ndarray)) {
// TODO
return Status::NotImplemented("Byte-swapped arrays not supported");
}
+ OwnedRef flattened;
+ if (PyArray_NDIM(ndarray) != 1) {
+ // GH-49644: variable-sized lists only accept 1-dimensional values, and
+ // 0-dimensional arrays are still rejected.
+ if (PyArray_NDIM(ndarray) < 2) {
+ return Status::Invalid("Can only convert 1-dimensional array values");
+ }
Review Comment:
Ah wait we still have `this->list_type_->id() == Type::FIXED_SIZE_LIST`
cases here. Will add suggestion below.
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