from datetime import datetime
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import pytz
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from pandas import DataFrame
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import pandas._testing as tm
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class TestDataFrameAlterAxes:
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# Tests for setting index/columns attributes directly (i.e. __setattr__)
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def test_set_axis_setattr_index(self):
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# GH 6785
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# set the index manually
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df = DataFrame([{"ts": datetime(2014, 4, 1, tzinfo=pytz.utc), "foo": 1}])
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expected = df.set_index("ts")
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df.index = df["ts"]
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df.pop("ts")
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tm.assert_frame_equal(df, expected)
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# Renaming
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def test_assign_columns(self, float_frame):
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float_frame["hi"] = "there"
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df = float_frame.copy()
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df.columns = ["foo", "bar", "baz", "quux", "foo2"]
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tm.assert_series_equal(float_frame["C"], df["baz"], check_names=False)
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tm.assert_series_equal(float_frame["hi"], df["foo2"], check_names=False)
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