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https://issues.apache.org/jira/browse/ARROW-17046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17565269#comment-17565269
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Amir Khosroshahi commented on ARROW-17046:
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After reporting this, I examined the code and realized that this may in fact be
a documentation error, rather than a bug.
The documentation can be modified to clarify that kwargs will get passed to
write_table only in legacy code path, and when use_legacy_dataset is False, it
will get passed to the underlying write function for the new code path instead.
> [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
>
> 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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