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https://issues.apache.org/jira/browse/ARROW-5205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16849965#comment-16849965
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Neal Richardson commented on ARROW-5205:
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See [https://github.com/apache/arrow/pull/4210] for an initial attempt and some
discussion. Since the C++ library will be handling the local/remote file
interface, it might make sense to have it either report a better error message
(which would bubble up to Python, R, et al.) or perhaps just attempt to connect
to the remote files.
> [Python][C++] Improved error messages when user erroneously uses a non-local
> resource URI to open a file
> --------------------------------------------------------------------------------------------------------
>
> Key: ARROW-5205
> URL: https://issues.apache.org/jira/browse/ARROW-5205
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, Python
> Reporter: Wes McKinney
> Assignee: Neal Richardson
> Priority: Major
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> In a number of places if a string filepath is passed, it is assumed to be a
> local file. Since we are developing better support for file URIs, we may be
> able to detect that the user has passed an unsupported URI (e.g. something
> starting with "s3:" or "hdfs:") and return a better error message than "local
> file not found"
> see
> https://stackoverflow.com/questions/55704943/what-could-be-the-explanation-of-this-pyarrow-lib-arrowioerror/55707311#55707311
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