[jira] [Closed] (ARROW-17046) [Python] pyarrow.parquet.write_to_dataset fails to pass kwargs to write_table function

["Alenka Frim (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-17046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alenka Frim closed ARROW-17046.
-------------------------------
    Resolution: Resolved

Issue resolved by pull request 13591
https://github.com/apache/arrow/pull/13591

> [Python] pyarrow.parquet.write_to_dataset fails to pass kwargs to write_table function
> --------------------------------------------------------------------------------------
>
>                 Key: ARROW-17046
>                 URL: https://issues.apache.org/jira/browse/ARROW-17046
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>    Affects Versions: 8.0.0
>            Reporter: Amir Khosroshahi
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 5.5h
>  Remaining Estimate: 0h
>
> According to PyArrow 8.0.0 [documentation|https://arrow.apache.org/docs/python/generated/pyarrow.parquet.write_to_dataset.html] {{kwargs}} is "Additional kwargs for {{write_table}} function." However when I try to pass additional arguments, for example {{{}flavor{}}}, to the underlying write_table I get the following error
> {code:java}
> TypeError: unexpected parquet write option: flavor{code}
> This used to work in PyArrow versions as late as 7.0.0 but started to break in 8.0.0.
> Minimal example to reproduce the error
> {code:java}
> import pyarrow as pa
> import pandas as pd
> import pyarrow.parquet as pq
> df = pd.DataFrame({'a': [1, 2], 'b': [3, 4]})
> tb = pa.Table.from_pandas(df)
> pq.write_to_dataset(tb, "test.parquet", flavor="spark") {code}



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