Antoine Pitrou created ARROW-2277:
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Summary: [Python] Tensor.from_numpy doesn't support struct arrays
Key: ARROW-2277
URL: https://issues.apache.org/jira/browse/ARROW-2277
Project: Apache Arrow
Issue Type: Improvement
Components: Python
Affects Versions: 0.8.0
Reporter: Antoine Pitrou
{code:python}
>>> dt = np.dtype([('x', np.int8), ('y', np.float32)])
>>> dt.itemsize
5
>>> arr = np.arange(5*10, dtype=np.int8).view(dt)
>>> pa.Tensor.from_numpy(arr)
Traceback (most recent call last):
File "<ipython-input-8-744d4c7972b7>", line 1, in <module>
pa.Tensor.from_numpy(arr)
File "array.pxi", line 523, in pyarrow.lib.Tensor.from_numpy
File "error.pxi", line 85, in pyarrow.lib.check_status
ArrowNotImplementedError:
/home/antoine/arrow/cpp/src/arrow/python/numpy_convert.cc:250 code:
GetTensorType(reinterpret_cast<PyObject*>(PyArray_DESCR(ndarray)), &type)
Unsupported numpy type 20
{code}
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