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Posted to dev@arrow.apache.org by "Young-Jun Ko (JIRA)" <ji...@apache.org> on 2017/09/19 13:13:00 UTC

[jira] [Created] (ARROW-1555) PyArrow write_to_dataset on s3

Young-Jun Ko created ARROW-1555:
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             Summary: PyArrow write_to_dataset on s3
                 Key: ARROW-1555
                 URL: https://issues.apache.org/jira/browse/ARROW-1555
             Project: Apache Arrow
          Issue Type: Bug
    Affects Versions: 0.7.0
            Reporter: Young-Jun Ko
            Priority: Trivial


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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