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[SPARK-52592][PS] Prevent error when creating ps.Series from ps.Series #51300

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[SPARK-52592][PS] Prevent error when creating ps.Series from ps.Series #51300

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75b845e
Prevent error when creating ps.Series from ps.Series
petern48 Jun 27, 2025
1200091
Remove invalid test that uses name param
petern48 Jun 27, 2025
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11 changes: 8 additions & 3 deletions python/pyspark/pandas/series.py
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Original file line number Diff line number Diff line change
Expand Up @@ -398,14 +398,19 @@ def __init__( # type: ignore[no-untyped-def]

self._anchor: DataFrame # type: ignore[annotation-unchecked]
self._col_label: Label # type: ignore[annotation-unchecked]
if isinstance(data, DataFrame):
if isinstance(data, (DataFrame, Series)):
assert dtype is None
assert name is None
assert not copy
assert not fastpath

self._anchor = data
self._col_label = index
if isinstance(data, Series):
assert index is None
self._anchor = DataFrame(data)
self._col_label = self._anchor._internal.column_labels[0]
else:
self._anchor = data
self._col_label = index
else:
if isinstance(data, pd.Series):
assert index is None
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5 changes: 5 additions & 0 deletions python/pyspark/pandas/tests/series/test_series.py
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Expand Up @@ -103,6 +103,11 @@ def test_empty_series(self):

self.assertTrue(pser_a.empty)

def test_series_from_series(self):
pser = ps.Series([1, 2, 3, 4, 5, 6, 7], name="x")

self.assert_eq(ps.Series(pser), pser)

def test_all_null_series(self):
pser_a = pd.Series([None, None, None], dtype="float64")
pser_b = pd.Series([None, None, None], dtype="str")
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