[GitHub] [arrow] jorisvandenbossche commented on a diff in pull request #12797: ARROW-13922: [Python] Fix ParquetDataset throw error when len(path_or_paths) == 1

[GitBox <gi...@apache.org>]

jorisvandenbossche commented on code in PR #12797:
URL: https://github.com/apache/arrow/pull/12797#discussion_r842682271


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python/pyarrow/tests/parquet/test_dataset.py:
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@@ -639,6 +639,21 @@ def test_read_directory_s3fs(s3_example_s3fs, use_legacy_dataset):
     assert result.equals(table)
 
 
+@pytest.mark.pandas
+@parametrize_legacy_dataset
+def test_read_single_file_list(tempdir, use_legacy_dataset):
+    base_path = str(tempdir)
+    data_path = os.path.join(base_path, 'data.parquet')

Review Comment:
   ```suggestion
       data_path = str(base_path / 'data.parquet')
   ```
   
   The `tempdir` fixture is a pathlib object, so that allows to write it like the above



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