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https://issues.apache.org/jira/browse/ARROW-9780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joris Van den Bossche updated ARROW-9780:
-----------------------------------------
Labels: dataset-parquet-legacy (was: )
> [Python] Legacy ParquetDataset gives confusing error message when passed a
> filter for non-directory dataset
> -----------------------------------------------------------------------------------------------------------
>
> Key: ARROW-9780
> URL: https://issues.apache.org/jira/browse/ARROW-9780
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Affects Versions: 1.0.0
> Reporter: Joris Van den Bossche
> Priority: Major
> Labels: dataset-parquet-legacy
>
> Not highest priority since it's for the legacy dataset, but this is rather
> confusing:
> {code}
> In [2]: pq.ParquetDataset("test.parquet", filters=[("x", ">", 4)])
> ...
> AttributeError: 'NoneType' object has no attribute 'filter_accepts_partition'
> {code}
> Basically the filters argument only makes sense for a directory (because the
> legacy dataset only filters on partitions), but it shouldn't error like that
> for non-directories.
> From https://github.com/dask/dask/issues/6512
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