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https://issues.apache.org/jira/browse/ARROW-6248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16908165#comment-16908165
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Wes McKinney commented on ARROW-6248:
-------------------------------------
Seems reasonable. Would you like to submit a PR?
> [Python] Use FileNotFoundError in HadoopFileSystem.open() in Python 3
> ----------------------------------------------------------------------
>
> Key: ARROW-6248
> URL: https://issues.apache.org/jira/browse/ARROW-6248
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Affects Versions: 0.14.1
> Reporter: Alexander Schepanovski
> Priority: Minor
>
> When file is absent pyarrow throwsÂ
> {code:python}
> ArrowIOError('HDFS file does not exist: ...')
> {code}
> which inherits from {{IOError}} and {{pyarrow.lib.ArrowException}}, it would
> be better if that was {{FileNotFoundError}} a subclass of {{IOError}} for
> this particular purpose. Also, {{.errno}} property is empty (should be 2) so
> one needs to match by error message to check for particular error.
> *P.S.* There is no {{FileNotFoundError}} in Python 2, but there is
> {{.errno}} property there.
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