[
https://issues.apache.org/jira/browse/ARROW-2240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16386265#comment-16386265
]
ASF GitHub Bot commented on ARROW-2240:
---------------------------------------
wesm commented on issue #1686: ARROW-2240: [Python] Array initialization with
leading numpy nan fails with exception
URL: https://github.com/apache/arrow/pull/1686#issuecomment-370466748
It's a bit of a slippery slope to be treating NaN unilaterally as null -- if
we did that then `pa.array([nan])` should return a NullArray. It may make sense
to have an option `nan_as_null` to toggle this behavior on and off (if off,
then nan is treated as any other floating point value)
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
> [Python] Array initialization with leading numpy nan fails with exception
> -------------------------------------------------------------------------
>
> Key: ARROW-2240
> URL: https://issues.apache.org/jira/browse/ARROW-2240
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 0.8.0
> Reporter: Florian Jetter
> Priority: Minor
> Labels: pull-request-available
>
>
> Arrow initialization fails for string arrays with leading numpy NAN
> {code:java}
> import pyarrow as pa
> import numpy as np
> pa.array([np.nan, 'str'])
> # Py3: ArrowException: Unknown error: must be real number, not str
> # Py2: ArrowException: Unknown error: a float is required{code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
