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Posted to issues@arrow.apache.org by "Wenjun Si (JIRA)" <ji...@apache.org> on 2019/06/24 07:19:00 UTC
[jira] [Updated] (ARROW-5703) Arrow cannot serialize complex
scalars in numpy
[ https://issues.apache.org/jira/browse/ARROW-5703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenjun Si updated ARROW-5703:
-----------------------------
Description:
When serializing complex scalars in Numpy, PyArrow reports an ArrowNotImplementedError. This can be reproduced with the code below
{code:python}
import numpy as np
import pyarrow as pa
# this raises ArrowNotImplementedError: Numpy scalar type not recognized
pa.serialize(np.complex128(1+3j))
# this runs ok
pa.serialize(np.array([1+3j]))
{code}
and the stack is
{code}
---------------------------------------------------------------------------
ArrowNotImplementedError Traceback (most recent call last)
<ipython-input-3-c5863fa706f3> in <module>
----> 1 pa.serialize(np.complex128(1+3j))
~/miniconda3/lib/python3.7/site-packages/pyarrow/serialization.pxi in pyarrow.lib.serialize()
~/miniconda3/lib/python3.7/site-packages/pyarrow/error.pxi in pyarrow.lib.check_status()
ArrowNotImplementedError: Numpy scalar type not recognized
{code}
Related github discussions: https://github.com/mars-project/mars/issues/476
was:
When serializing complex scalars in Numpy, PyArrow reports an ArrowNotImplementedError. This can be reproduced with the code below
{code:python}
import numpy as np
import pyarrow as pa
# this raises ArrowNotImplementedError: Numpy scalar type not recognized
pa.serialize(np.complex128(1+3j))
# this runs ok
pa.serialize(np.array([1+3j]))
{code}
and the stack is
{code}
---------------------------------------------------------------------------
ArrowNotImplementedError Traceback (most recent call last)
<ipython-input-3-c5863fa706f3> in <module>
----> 1 pa.serialize(np.complex128(1+3j))
~/miniconda3/lib/python3.7/site-packages/pyarrow/serialization.pxi in pyarrow.lib.serialize()
~/miniconda3/lib/python3.7/site-packages/pyarrow/error.pxi in pyarrow.lib.check_status()
ArrowNotImplementedError: Numpy scalar type not recognized
{code}
> Arrow cannot serialize complex scalars in numpy
> -----------------------------------------------
>
> Key: ARROW-5703
> URL: https://issues.apache.org/jira/browse/ARROW-5703
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 0.12.1
> Environment: Miniconda Python 3.7.3
> Numpy 1.16.4
> Reporter: Wenjun Si
> Priority: Minor
>
> When serializing complex scalars in Numpy, PyArrow reports an ArrowNotImplementedError. This can be reproduced with the code below
> {code:python}
> import numpy as np
> import pyarrow as pa
> # this raises ArrowNotImplementedError: Numpy scalar type not recognized
> pa.serialize(np.complex128(1+3j))
> # this runs ok
> pa.serialize(np.array([1+3j]))
> {code}
> and the stack is
> {code}
> ---------------------------------------------------------------------------
> ArrowNotImplementedError Traceback (most recent call last)
> <ipython-input-3-c5863fa706f3> in <module>
> ----> 1 pa.serialize(np.complex128(1+3j))
> ~/miniconda3/lib/python3.7/site-packages/pyarrow/serialization.pxi in pyarrow.lib.serialize()
> ~/miniconda3/lib/python3.7/site-packages/pyarrow/error.pxi in pyarrow.lib.check_status()
> ArrowNotImplementedError: Numpy scalar type not recognized
> {code}
> Related github discussions: https://github.com/mars-project/mars/issues/476
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