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[SPARK-46553][PS] FutureWarning for interpolate with object dtype #44550

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[SPARK-46553][PS] FutureWarning for interpolate with object dtype #44550

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[SPARK-46553][PS] FutureWarning for interpolate with object dtype
itholic Jan 2, 2024
ab0ae36
Retrigger CI
itholic Jan 2, 2024
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7 changes: 7 additions & 0 deletions python/pyspark/pandas/frame.py
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Original file line number Diff line number Diff line change
Expand Up @@ -6126,6 +6126,13 @@ def interpolate(
raise ValueError("invalid limit_direction: '{}'".format(limit_direction))
if (limit_area is not None) and (limit_area not in ["inside", "outside"]):
raise ValueError("invalid limit_area: '{}'".format(limit_area))
for dtype in self.dtypes.values:
if dtype == "object":
warnings.warn(
"DataFrame.interpolate with object dtype is deprecated and will raise in a "
"future version. Convert to a specific numeric type before interpolating.",
FutureWarning,
)

numeric_col_names = []
for label in self._internal.column_labels:
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6 changes: 6 additions & 0 deletions python/pyspark/pandas/series.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2231,6 +2231,12 @@ def _interpolate(
limit_direction: Optional[str] = None,
limit_area: Optional[str] = None,
) -> "Series":
if self.dtype == "object":
warnings.warn(
"Series.interpolate with object dtype is deprecated and will raise in a "
"future version. Convert to a specific numeric type before interpolating.",
FutureWarning,
)
if method not in ["linear"]:
raise NotImplementedError("interpolate currently works only for method='linear'")
if (limit is not None) and (not limit > 0):
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