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Commit6a2da7a

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BUG: round on object columns no longer raises a TypeError (#61399)
* raise TypeError when Series dtype is object on calling Series.round()* add test* precommit* add github issue reference to test* add bugfix to 2.3 whatsnew* change self._mgr.dtype to self.dtypeCo-authored-by: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>---------Co-authored-by: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>
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‎doc/source/whatsnew/v2.3.0.rst

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@@ -120,6 +120,7 @@ Timezones
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Numeric
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^^^^^^^
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- Enabled:class:`Series.mode` and:class:`DataFrame.mode` with ``dropna=False`` to sort the result for all dtypes in the presence of NA values; previously only certain dtypes would sort (:issue:`60702`)
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- Bug in:meth:`Series.round` on object columns no longer raises ``TypeError``
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-
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‎pandas/core/series.py

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@@ -2514,6 +2514,8 @@ def round(self, decimals: int = 0, *args, **kwargs) -> Series:
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dtype: float64
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"""
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nv.validate_round(args,kwargs)
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ifself.dtype=="object":
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raiseTypeError("Expected numeric dtype, got object instead.")
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new_mgr=self._mgr.round(decimals=decimals)
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returnself._constructor_from_mgr(new_mgr,axes=new_mgr.axes).__finalize__(
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self,method="round"

‎pandas/tests/series/methods/test_round.py

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@@ -72,3 +72,10 @@ def test_round_ea_boolean(self):
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tm.assert_series_equal(result,expected)
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result.iloc[0]=False
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tm.assert_series_equal(ser,expected)
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deftest_round_dtype_object(self):
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# GH#61206
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ser=Series([0.2],dtype="object")
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msg="Expected numeric dtype, got object instead."
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withpytest.raises(TypeError,match=msg):
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ser.round()

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