Amir Khosroshahi created ARROW-17046:
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Summary: [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: Bug
Components: Python
Affects Versions: 8.0.0
Reporter: Amir Khosroshahi
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 for example flavor as an additional argument 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 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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