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https://issues.apache.org/jira/browse/ARROW-7944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17045376#comment-17045376
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Antoine Pitrou commented on ARROW-7944:
---------------------------------------
cc [~jorisvandenbossche]
> [Python] Test failures without Pandas
> -------------------------------------
>
> Key: ARROW-7944
> URL: https://issues.apache.org/jira/browse/ARROW-7944
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Reporter: Antoine Pitrou
> Priority: Major
> Fix For: 1.0.0
>
>
> I recently saw this:
> https://ci.appveyor.com/project/pitrou/arrow/builds/31065781/job/p08i1nrstf9wl2kr#L1964
> {code}
> ================================== FAILURES
> ===================================
> _________________________ test_builtin_pickle_dataset
> _________________________
> tempdir =
> WindowsPath('C:/Users/appveyor/AppData/Local/Temp/1/pytest-of-appveyor/pytest-0/test_builtin_pickle_dataset0')
> datadir = WindowsPath('c:/projects/arrow/python/pyarrow/tests/data/parquet')
> def test_builtin_pickle_dataset(tempdir, datadir):
> import pickle
> > dataset = _make_dataset_for_pickling(tempdir)
> pyarrow\tests\test_parquet.py:2821:
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _
> tempdir =
> WindowsPath('C:/Users/appveyor/AppData/Local/Temp/1/pytest-of-appveyor/pytest-0/test_builtin_pickle_dataset0')
> N = 100
> def _make_dataset_for_pickling(tempdir, N=100):
> path = tempdir / 'data.parquet'
> fs = LocalFileSystem.get_instance()
>
> > df = pd.DataFrame({
> 'index': np.arange(N),
> 'values': np.random.randn(N)
> }, columns=['index', 'values'])
> E AttributeError: 'NoneType' object has no attribute 'DataFrame'
> pyarrow\tests\test_parquet.py:2776: AttributeError
> __________________________ test_cloudpickle_dataset
> ___________________________
> tempdir =
> WindowsPath('C:/Users/appveyor/AppData/Local/Temp/1/pytest-of-appveyor/pytest-0/test_cloudpickle_dataset0')
> datadir = WindowsPath('c:/projects/arrow/python/pyarrow/tests/data/parquet')
> def test_cloudpickle_dataset(tempdir, datadir):
> cp = pytest.importorskip('cloudpickle')
> > dataset = _make_dataset_for_pickling(tempdir)
> pyarrow\tests\test_parquet.py:2827:
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _
> tempdir =
> WindowsPath('C:/Users/appveyor/AppData/Local/Temp/1/pytest-of-appveyor/pytest-0/test_cloudpickle_dataset0')
> N = 100
> def _make_dataset_for_pickling(tempdir, N=100):
> path = tempdir / 'data.parquet'
> fs = LocalFileSystem.get_instance()
>
> > df = pd.DataFrame({
> 'index': np.arange(N),
> 'values': np.random.randn(N)
> }, columns=['index', 'values'])
> E AttributeError: 'NoneType' object has no attribute 'DataFrame'
> pyarrow\tests\test_parquet.py:2776: AttributeError
> {code}
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