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https://issues.apache.org/jira/browse/ARROW-2277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17659304#comment-17659304
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Rok Mihevc commented on ARROW-2277:
-----------------------------------
This issue has been migrated to [issue
#18233|https://github.com/apache/arrow/issues/18233] on GitHub. Please see the
[migration documentation|https://github.com/apache/arrow/issues/14542] for
further details.
> [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
> Priority: Major
>
> {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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