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https://issues.apache.org/jira/browse/ARROW-2040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16380459#comment-16380459
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ASF GitHub Bot commented on ARROW-2040:
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wesm commented on issue #1680: ARROW-2040: [Python] Deserialized Numpy array
must keep ref to underlying tensor
URL: https://github.com/apache/arrow/pull/1680#issuecomment-369272242
Appveyor build here:
https://ci.appveyor.com/project/pitrou/arrow/build/1.0.146. will merge once
that moves along a little more
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> [Python] pyarrow.read_serialized returns bogus data
> ---------------------------------------------------
>
> Key: ARROW-2040
> URL: https://issues.apache.org/jira/browse/ARROW-2040
> Project: Apache Arrow
> Issue Type: Bug
> Affects Versions: 0.8.0
> Reporter: Richard Shin
> Assignee: Antoine Pitrou
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.9.0
>
>
> pyarrow.deserialize works fine, however.
> {code:python}
> Python 2.7.12 (default, Nov 20 2017, 18:23:56)
> [GCC 5.4.0 20160609] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import pyarrow as pa, numpy as np
> >>> with open('test.pyarrow', 'w') as f:
> ... f.write(pa.serialize(np.arange(10,
> dtype=np.int32)).to_buffer().to_pybytes())
> ...
> >>> pa.read_serialized(pa.OSFile('test.pyarrow')).deserialize()
> array([54846320, 0, 45484448, 0, 4, 5, 6, 7, 8, 9], dtype=int32)
> >>> pa.deserialize(pa.frombuffer(open('test.pyarrow').read()))
> array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9], dtype=int32)
> {code}
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