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FIX-#4058: Allow pickling empty dataframes and series. #4095

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Jan 31, 2022
Merged

FIX-#4058: Allow pickling empty dataframes and series. #4095

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5fc9565
FIX-#4058: Allow pickling empty dataframes and series.
Jan 27, 2022
2d63fcc
Add a release note.
Jan 28, 2022
66a65c9
Replace commit prefix with PR number.
mvashishtha Jan 29, 2022
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2 changes: 1 addition & 1 deletion docs/release_notes/release_notes-0.14.0.rst
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Expand Up @@ -4,7 +4,7 @@ Key Features and Updates
------------------------

* Stability and Bugfixes
*
* FIX-#4058: Allow pickling empty dataframes and series (#4095)
* Performance enhancements
*
* Benchmarking enhancements
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1 change: 1 addition & 0 deletions modin/pandas/base.py
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Expand Up @@ -91,6 +91,7 @@
"_inflate_light",
"_inflate_full",
"__reduce__",
"__reduce_ex__",
} | _ATTRS_NO_LOOKUP


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3 changes: 3 additions & 0 deletions modin/pandas/test/dataframe/test_pickle.py
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Expand Up @@ -39,6 +39,9 @@ def persistent(request):
PersistentPickle.put(old)


@pytest.mark.parametrize(
"modin_df", [pytest.param(modin_df), pytest.param(pd.DataFrame(), id="empty_df")]
)
def test_dataframe_pickle(modin_df, persistent):
other = pickle.loads(pickle.dumps(modin_df))
df_equals(modin_df, other)
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