[jira] [Assigned] (ARROW-1830) [Python] Error when loading all the files in a dictionary

["Wes McKinney (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-1830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney reassigned ARROW-1830:
-----------------------------------

    Assignee: Wes McKinney

> [Python] Error when loading all the files in a dictionary
> ---------------------------------------------------------
>
>                 Key: ARROW-1830
>                 URL: https://issues.apache.org/jira/browse/ARROW-1830
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Python
>    Affects Versions: 0.7.1
>         Environment: Python 2.7.11 (default, Jan 22 2016, 08:29:18)  + pyarrow 0.7.1
>            Reporter: DB Tsai
>            Assignee: Wes McKinney
>             Fix For: 0.8.0
>
>
> I can read one parquet file, but when I tried to read all the parquet files in a folder, I got an error.
> {code:java}
> >>> data = pq.ParquetDataset('./aaa/part-00000-d8268e3a-4e65-41a3-a43e-01e0bf68ee86')
> >>> data = pq.ParquetDataset('./aaa/')
> Ignoring path: ./aaa//part-00000-d8268e3a-4e65-41a3-a43e-01e0bf68ee86
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/usr/local/lib/python2.7/site-packages/pyarrow/parquet.py", line 638, in __init__
>     self.validate_schemas()
>   File "/usr/local/lib/python2.7/site-packages/pyarrow/parquet.py", line 647, in validate_schemas
>     self.schema = self.pieces[0].get_metadata(open_file).schema
> IndexError: list index out of range
> >>> 
> {code}



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