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https://issues.apache.org/jira/browse/ARROW-12613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17338371#comment-17338371
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Alessandro Molina commented on ARROW-12613:
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I can confirm the issue is the same for Scalar values and I also verified that
we are not having the same issue for other kind of arrays. It seems that for
all Array subclasses comparing to {{None}} is correctly handled and for
{{ChunkedArray}} too is correctly handled. So the problem seem to be limited to
scalars in term of comparing arrays and their content.
> [Python] AttributeError when comparing a Scalar with None
> ---------------------------------------------------------
>
> Key: ARROW-12613
> URL: https://issues.apache.org/jira/browse/ARROW-12613
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 4.0.0
> Environment: Windows 10
> python=3.9.2
> pyarrow=4.0.0
> Reporter: Sergey Mozharov
> Priority: Major
> Fix For: 5.0.0
>
>
> {code:java}
> import pyarrow as pa
> arr = pa.array([1, 2])
> arr[0] == None # -> AttributeError: 'NoneType' object has no attribute
> 'unwrap'
> {code}
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