[jira] [Updated] (ARROW-1555) [Python] write_to_dataset on s3

["Antoine Pitrou (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-1555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Pitrou updated ARROW-1555:
----------------------------------
    Component/s: Python

> [Python] write_to_dataset on s3
> -------------------------------
>
>                 Key: ARROW-1555
>                 URL: https://issues.apache.org/jira/browse/ARROW-1555
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Python
>    Affects Versions: 0.7.0
>            Reporter: Young-Jun Ko
>            Assignee: Benjamin Goldberg
>            Priority: Trivial
>              Labels: pull-request-available
>             Fix For: 0.8.0
>
>
> When writing a arrow table to s3, I get an NotImplemented Exception.
> The root cause is in _ensure_filesystem and can be reproduced as follows:
> import pyarrow
> import pyarrow.parquet as pqa
> import s3fs
> s3 = s3fs.S3FileSystem()
> pqa._ensure_filesystem(s3).exists("anything")
> It appears that the S3FSWrapper that is instantiated in _ensure_filesystem does not expose the exist method of s3.



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