from datetime import datetime
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import numpy as np
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from pandas import (
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DatetimeIndex,
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Series,
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)
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import pandas._testing as tm
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def test_series_set_value():
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# GH#1561
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dates = [datetime(2001, 1, 1), datetime(2001, 1, 2)]
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index = DatetimeIndex(dates)
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s = Series(dtype=object)
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s._set_value(dates[0], 1.0)
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s._set_value(dates[1], np.nan)
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expected = Series([1.0, np.nan], index=index)
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tm.assert_series_equal(s, expected)
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def test_set_value_dt64(datetime_series):
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idx = datetime_series.index[10]
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res = datetime_series._set_value(idx, 0)
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assert res is None
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assert datetime_series[idx] == 0
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def test_set_value_str_index(string_series):
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# equiv
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ser = string_series.copy()
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res = ser._set_value("foobar", 0)
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assert res is None
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assert ser.index[-1] == "foobar"
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assert ser["foobar"] == 0
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ser2 = string_series.copy()
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ser2.loc["foobar"] = 0
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assert ser2.index[-1] == "foobar"
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assert ser2["foobar"] == 0
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