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ENH Add normalize method to Series dt accessor. #10047

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ENH Add normalize method to Series dt accessor. #10047

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1 change: 1 addition & 0 deletions doc/source/whatsnew/v0.16.1.txt
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Expand Up @@ -68,6 +68,7 @@ Enhancements
- Allow ``Categorical.add_categories`` to accept ``Series`` or ``np.array``. (:issue:`9927`)

- Add/delete ``str/dt/cat`` accessors dynamically from ``__dir__``. (:issue:`9910`)
- Add ``normalize`` as a ``dt`` accessor method.
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add the issue number here (this PR number)


- ``DataFrame`` and ``Series`` now have ``_constructor_expanddim`` property as overridable constructor for one higher dimensionality data. This should be used only when it is really needed, see :ref:`here <ref-subclassing-pandas>`

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3 changes: 2 additions & 1 deletion pandas/tests/test_series.py
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Expand Up @@ -83,7 +83,7 @@ def test_dt_namespace_accessor(self):
ok_for_period = ok_for_base + ['qyear']
ok_for_dt = ok_for_base + ['date','time','microsecond','nanosecond', 'is_month_start', 'is_month_end', 'is_quarter_start',
'is_quarter_end', 'is_year_start', 'is_year_end', 'tz']
ok_for_dt_methods = ['to_period','to_pydatetime','tz_localize','tz_convert']
ok_for_dt_methods = ['to_period','to_pydatetime','tz_localize','tz_convert', 'normalize']
ok_for_td = ['days','seconds','microseconds','nanoseconds']
ok_for_td_methods = ['components','to_pytimedelta']

Expand Down Expand Up @@ -165,6 +165,7 @@ def compare(s, name):
tm.assert_series_equal(s.dt.year,Series(np.array([2014,2014,2014],dtype='int64'),index=index))
tm.assert_series_equal(s.dt.month,Series(np.array([2,2,2],dtype='int64'),index=index))
tm.assert_series_equal(s.dt.second,Series(np.array([0,1,2],dtype='int64'),index=index))
tm.assert_series_equal(s.dt.normalize(), pd.Series([s[0]] * 3, index=index))

# periodindex
for s in [Series(period_range('20130101',periods=5,freq='D'))]:
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2 changes: 1 addition & 1 deletion pandas/tseries/common.py
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Expand Up @@ -125,7 +125,7 @@ def to_pydatetime(self):
accessors=DatetimeIndex._datetimelike_ops,
typ='property')
DatetimeProperties._add_delegate_accessors(delegate=DatetimeIndex,
accessors=["to_period","tz_localize","tz_convert"],
accessors=["to_period","tz_localize","tz_convert","normalize"],
typ='method')

class TimedeltaProperties(Properties):
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