STYLE: incondintent namaspace(series) (#40159)

* STYLE: incondintent namaspace(series)

* remove import-pandas

Author: ren-ozeki

pandas/tests/series/accessors/test_dt_accessor.py

@@ -74,7 +74,7 @@ def get_expected(s, name):
             if isinstance(result, np.ndarray):
                 if is_integer_dtype(result):
                     result = result.astype("int64")
-            elif not is_list_like(result) or isinstance(result, pd.DataFrame):
+            elif not is_list_like(result) or isinstance(result, DataFrame):
                 return result
             return Series(result, index=s.index, name=s.name)
 
@@ -83,7 +83,7 @@ def compare(s, name):
             b = get_expected(s, prop)
             if not (is_list_like(a) and is_list_like(b)):
                 assert a == b
-            elif isinstance(a, pd.DataFrame):
+            elif isinstance(a, DataFrame):
                 tm.assert_frame_equal(a, b)
             else:
                 tm.assert_series_equal(a, b)
@@ -180,7 +180,7 @@ def compare(s, name):
             assert result.dtype == object
 
             result = s.dt.total_seconds()
-            assert isinstance(result, pd.Series)
+            assert isinstance(result, Series)
             assert result.dtype == "float64"
 
             freq_result = s.dt.freq
@@ -236,11 +236,11 @@ def get_dir(s):
 
         # 11295
         # ambiguous time error on the conversions
-        s = Series(pd.date_range("2015-01-01", "2016-01-01", freq="T"), name="xxx")
+        s = Series(date_range("2015-01-01", "2016-01-01", freq="T"), name="xxx")
         s = s.dt.tz_localize("UTC").dt.tz_convert("America/Chicago")
         results = get_dir(s)
         tm.assert_almost_equal(results, sorted(set(ok_for_dt + ok_for_dt_methods)))
-        exp_values = pd.date_range(
+        exp_values = date_range(
             "2015-01-01", "2016-01-01", freq="T", tz="UTC"
         ).tz_convert("America/Chicago")
         # freq not preserved by tz_localize above
@@ -297,7 +297,7 @@ def test_dt_round_tz(self):
     @pytest.mark.parametrize("method", ["ceil", "round", "floor"])
     def test_dt_round_tz_ambiguous(self, method):
         # GH 18946 round near "fall back" DST
-        df1 = pd.DataFrame(
+        df1 = DataFrame(
             [
                 pd.to_datetime("2017-10-29 02:00:00+02:00", utc=True),
                 pd.to_datetime("2017-10-29 02:00:00+01:00", utc=True),
@@ -634,7 +634,7 @@ def test_dt_accessor_invalid(self, ser):
         assert not hasattr(ser, "dt")
 
     def test_dt_accessor_updates_on_inplace(self):
-        s = Series(pd.date_range("2018-01-01", periods=10))
+        s = Series(date_range("2018-01-01", periods=10))
         s[2] = None
         return_value = s.fillna(pd.Timestamp("2018-01-01"), inplace=True)
         assert return_value is None
@@ -680,7 +680,7 @@ def test_dt_timetz_accessor(self, tz_naive_fixture):
     )
     def test_isocalendar(self, input_series, expected_output):
         result = pd.to_datetime(Series(input_series)).dt.isocalendar()
-        expected_frame = pd.DataFrame(
+        expected_frame = DataFrame(
             expected_output, columns=["year", "week", "day"], dtype="UInt32"
         )
         tm.assert_frame_equal(result, expected_frame)

pandas/tests/series/indexing/test_datetime.py

@@ -352,7 +352,7 @@ def test_indexing_over_size_cutoff_period_index(monkeypatch):
     monkeypatch.setattr(libindex, "_SIZE_CUTOFF", 1000)
 
     n = 1100
-    idx = pd.period_range("1/1/2000", freq="T", periods=n)
+    idx = period_range("1/1/2000", freq="T", periods=n)
     assert idx._engine.over_size_threshold
 
     s = Series(np.random.randn(len(idx)), index=idx)

pandas/tests/series/indexing/test_getitem.py

@@ -309,7 +309,7 @@ def test_getitem_slice_integers(self):
 
 
 class TestSeriesGetitemListLike:
-    @pytest.mark.parametrize("box", [list, np.array, Index, pd.Series])
+    @pytest.mark.parametrize("box", [list, np.array, Index, Series])
     def test_getitem_no_matches(self, box):
         # GH#33462 we expect the same behavior for list/ndarray/Index/Series
         ser = Series(["A", "B"])

pandas/tests/series/indexing/test_indexing.py

@@ -5,7 +5,6 @@
 import numpy as np
 import pytest
 
-import pandas as pd
 from pandas import (
     DataFrame,
     IndexSlice,
@@ -58,7 +57,7 @@ def test_basic_getitem_dt64tz_values():
     # GH12089
     # with tz for values
     ser = Series(
-        pd.date_range("2011-01-01", periods=3, tz="US/Eastern"), index=["a", "b", "c"]
+        date_range("2011-01-01", periods=3, tz="US/Eastern"), index=["a", "b", "c"]
     )
     expected = Timestamp("2011-01-01", tz="US/Eastern")
     result = ser.loc["a"]
@@ -114,7 +113,7 @@ def test_getitem_setitem_integers():
 
 
 def test_series_box_timestamp():
-    rng = pd.date_range("20090415", "20090519", freq="B")
+    rng = date_range("20090415", "20090519", freq="B")
     ser = Series(rng)
     assert isinstance(ser[0], Timestamp)
     assert isinstance(ser.at[1], Timestamp)
@@ -131,7 +130,7 @@ def test_series_box_timestamp():
 
 
 def test_series_box_timedelta():
-    rng = pd.timedelta_range("1 day 1 s", periods=5, freq="h")
+    rng = timedelta_range("1 day 1 s", periods=5, freq="h")
     ser = Series(rng)
     assert isinstance(ser[0], Timedelta)
     assert isinstance(ser.at[1], Timedelta)

pandas/tests/series/indexing/test_where.py

@@ -475,7 +475,7 @@ def test_where_datetimelike_categorical(tz_naive_fixture):
     # GH#37682
     tz = tz_naive_fixture
 
-    dr = pd.date_range("2001-01-01", periods=3, tz=tz)._with_freq(None)
+    dr = date_range("2001-01-01", periods=3, tz=tz)._with_freq(None)
     lvals = pd.DatetimeIndex([dr[0], dr[1], pd.NaT])
     rvals = pd.Categorical([dr[0], pd.NaT, dr[2]])
 

pandas/tests/series/methods/test_interpolate.py

@@ -642,7 +642,7 @@ def test_interp_datetime64(self, method, tz_naive_fixture):
 
     def test_interp_pad_datetime64tz_values(self):
         # GH#27628 missing.interpolate_2d should handle datetimetz values
-        dti = pd.date_range("2015-04-05", periods=3, tz="US/Central")
+        dti = date_range("2015-04-05", periods=3, tz="US/Central")
         ser = Series(dti)
         ser[1] = pd.NaT
         result = ser.interpolate(method="pad")
@@ -735,13 +735,13 @@ def test_series_interpolate_method_values(self):
 
     def test_series_interpolate_intraday(self):
         # #1698
-        index = pd.date_range("1/1/2012", periods=4, freq="12D")
+        index = date_range("1/1/2012", periods=4, freq="12D")
         ts = Series([0, 12, 24, 36], index)
         new_index = index.append(index + pd.DateOffset(days=1)).sort_values()
 
         exp = ts.reindex(new_index).interpolate(method="time")
 
-        index = pd.date_range("1/1/2012", periods=4, freq="12H")
+        index = date_range("1/1/2012", periods=4, freq="12H")
         ts = Series([0, 12, 24, 36], index)
         new_index = index.append(index + pd.DateOffset(hours=1)).sort_values()
         result = ts.reindex(new_index).interpolate(method="time")

pandas/tests/series/methods/test_shift.py

@@ -353,14 +353,14 @@ def test_shift_preserve_freqstr(self, periods):
         # GH#21275
         ser = Series(
             range(periods),
-            index=pd.date_range("2016-1-1 00:00:00", periods=periods, freq="H"),
+            index=date_range("2016-1-1 00:00:00", periods=periods, freq="H"),
         )
 
         result = ser.shift(1, "2H")
 
         expected = Series(
             range(periods),
-            index=pd.date_range("2016-1-1 02:00:00", periods=periods, freq="H"),
+            index=date_range("2016-1-1 02:00:00", periods=periods, freq="H"),
         )
         tm.assert_series_equal(result, expected)
 

pandas/tests/series/test_constructors.py

@@ -689,16 +689,16 @@ def test_constructor_pass_nan_nat(self):
         tm.assert_series_equal(Series([np.nan, np.nan]), exp)
         tm.assert_series_equal(Series(np.array([np.nan, np.nan])), exp)
 
-        exp = Series([pd.NaT, pd.NaT])
+        exp = Series([NaT, NaT])
         assert exp.dtype == "datetime64[ns]"
-        tm.assert_series_equal(Series([pd.NaT, pd.NaT]), exp)
-        tm.assert_series_equal(Series(np.array([pd.NaT, pd.NaT])), exp)
+        tm.assert_series_equal(Series([NaT, NaT]), exp)
+        tm.assert_series_equal(Series(np.array([NaT, NaT])), exp)
 
-        tm.assert_series_equal(Series([pd.NaT, np.nan]), exp)
-        tm.assert_series_equal(Series(np.array([pd.NaT, np.nan])), exp)
+        tm.assert_series_equal(Series([NaT, np.nan]), exp)
+        tm.assert_series_equal(Series(np.array([NaT, np.nan])), exp)
 
-        tm.assert_series_equal(Series([np.nan, pd.NaT]), exp)
-        tm.assert_series_equal(Series(np.array([np.nan, pd.NaT])), exp)
+        tm.assert_series_equal(Series([np.nan, NaT]), exp)
+        tm.assert_series_equal(Series(np.array([np.nan, NaT])), exp)
 
     def test_constructor_cast(self):
         msg = "could not convert string to float"
@@ -824,7 +824,7 @@ def test_constructor_dtype_datetime64(self):
         tm.assert_series_equal(result, expected)
 
         expected = Series(
-            [pd.NaT, datetime(2013, 1, 2), datetime(2013, 1, 3)], dtype="datetime64[ns]"
+            [NaT, datetime(2013, 1, 2), datetime(2013, 1, 3)], dtype="datetime64[ns]"
         )
         result = Series([np.nan] + dates[1:], dtype="datetime64[ns]")
         tm.assert_series_equal(result, expected)
@@ -888,13 +888,13 @@ def test_constructor_dtype_datetime64(self):
         assert series1.dtype == object
 
         # these will correctly infer a datetime
-        s = Series([None, pd.NaT, "2013-08-05 15:30:00.000001"])
+        s = Series([None, NaT, "2013-08-05 15:30:00.000001"])
         assert s.dtype == "datetime64[ns]"
-        s = Series([np.nan, pd.NaT, "2013-08-05 15:30:00.000001"])
+        s = Series([np.nan, NaT, "2013-08-05 15:30:00.000001"])
         assert s.dtype == "datetime64[ns]"
-        s = Series([pd.NaT, None, "2013-08-05 15:30:00.000001"])
+        s = Series([NaT, None, "2013-08-05 15:30:00.000001"])
         assert s.dtype == "datetime64[ns]"
-        s = Series([pd.NaT, np.nan, "2013-08-05 15:30:00.000001"])
+        s = Series([NaT, np.nan, "2013-08-05 15:30:00.000001"])
         assert s.dtype == "datetime64[ns]"
 
         # tz-aware (UTC and other tz's)
@@ -907,15 +907,15 @@ def test_constructor_dtype_datetime64(self):
         assert str(Series(dr).iloc[0].tz) == "US/Eastern"
 
         # non-convertible
-        s = Series([1479596223000, -1479590, pd.NaT])
+        s = Series([1479596223000, -1479590, NaT])
         assert s.dtype == "object"
-        assert s[2] is pd.NaT
+        assert s[2] is NaT
         assert "NaT" in str(s)
 
         # if we passed a NaT it remains
-        s = Series([datetime(2010, 1, 1), datetime(2, 1, 1), pd.NaT])
+        s = Series([datetime(2010, 1, 1), datetime(2, 1, 1), NaT])
         assert s.dtype == "object"
-        assert s[2] is pd.NaT
+        assert s[2] is NaT
         assert "NaT" in str(s)
 
         # if we passed a nan it remains
@@ -941,7 +941,7 @@ def test_constructor_with_datetime_tz(self):
         assert isinstance(result, np.ndarray)
         assert result.dtype == "datetime64[ns]"
 
-        exp = pd.DatetimeIndex(result)
+        exp = DatetimeIndex(result)
         exp = exp.tz_localize("UTC").tz_convert(tz=s.dt.tz)
         tm.assert_index_equal(dr, exp)
 
@@ -977,7 +977,7 @@ def test_constructor_with_datetime_tz(self):
         t = Series(date_range("20130101", periods=1000, tz="US/Eastern"))
         assert "datetime64[ns, US/Eastern]" in str(t)
 
-        result = pd.DatetimeIndex(s, freq="infer")
+        result = DatetimeIndex(s, freq="infer")
         tm.assert_index_equal(result, dr)
 
         # inference
@@ -1000,8 +1000,8 @@ def test_constructor_with_datetime_tz(self):
         assert lib.infer_dtype(s, skipna=True) == "datetime"
 
         # with all NaT
-        s = Series(pd.NaT, index=[0, 1], dtype="datetime64[ns, US/Eastern]")
-        expected = Series(pd.DatetimeIndex(["NaT", "NaT"], tz="US/Eastern"))
+        s = Series(NaT, index=[0, 1], dtype="datetime64[ns, US/Eastern]")
+        expected = Series(DatetimeIndex(["NaT", "NaT"], tz="US/Eastern"))
         tm.assert_series_equal(s, expected)
 
     @pytest.mark.parametrize("arr_dtype", [np.int64, np.float64])
@@ -1018,7 +1018,7 @@ def test_construction_to_datetimelike_unit(self, arr_dtype, dtype, unit):
 
         tm.assert_series_equal(result, expected)
 
-    @pytest.mark.parametrize("arg", ["2013-01-01 00:00:00", pd.NaT, np.nan, None])
+    @pytest.mark.parametrize("arg", ["2013-01-01 00:00:00", NaT, np.nan, None])
     def test_constructor_with_naive_string_and_datetimetz_dtype(self, arg):
         # GH 17415: With naive string
         result = Series([arg], dtype="datetime64[ns, CET]")
@@ -1302,7 +1302,7 @@ def test_constructor_dtype_timedelta64(self):
         td = Series([timedelta(days=1), np.nan], dtype="m8[ns]")
         assert td.dtype == "timedelta64[ns]"
 
-        td = Series([np.timedelta64(300000000), pd.NaT], dtype="m8[ns]")
+        td = Series([np.timedelta64(300000000), NaT], dtype="m8[ns]")
         assert td.dtype == "timedelta64[ns]"
 
         # improved inference
@@ -1317,7 +1317,7 @@ def test_constructor_dtype_timedelta64(self):
         td = Series([np.timedelta64(300000000), np.nan])
         assert td.dtype == "timedelta64[ns]"
 
-        td = Series([pd.NaT, np.timedelta64(300000000)])
+        td = Series([NaT, np.timedelta64(300000000)])
         assert td.dtype == "timedelta64[ns]"
 
         td = Series([np.timedelta64(1, "s")])
@@ -1349,13 +1349,13 @@ def test_constructor_dtype_timedelta64(self):
         assert td.dtype == "object"
 
         # these will correctly infer a timedelta
-        s = Series([None, pd.NaT, "1 Day"])
+        s = Series([None, NaT, "1 Day"])
         assert s.dtype == "timedelta64[ns]"
-        s = Series([np.nan, pd.NaT, "1 Day"])
+        s = Series([np.nan, NaT, "1 Day"])
         assert s.dtype == "timedelta64[ns]"
-        s = Series([pd.NaT, None, "1 Day"])
+        s = Series([NaT, None, "1 Day"])
         assert s.dtype == "timedelta64[ns]"
-        s = Series([pd.NaT, np.nan, "1 Day"])
+        s = Series([NaT, np.nan, "1 Day"])
         assert s.dtype == "timedelta64[ns]"
 
     # GH 16406
@@ -1606,7 +1606,7 @@ def test_constructor_dict_multiindex(self):
         _d = sorted(d.items())
         result = Series(d)
         expected = Series(
-            [x[1] for x in _d], index=pd.MultiIndex.from_tuples([x[0] for x in _d])
+            [x[1] for x in _d], index=MultiIndex.from_tuples([x[0] for x in _d])
         )
         tm.assert_series_equal(result, expected)
 

pandas/tests/series/test_repr.py

@@ -169,7 +169,7 @@ def test_repr_should_return_str(self):
 
     def test_repr_max_rows(self):
         # GH 6863
-        with pd.option_context("max_rows", None):
+        with option_context("max_rows", None):
             str(Series(range(1001)))  # should not raise exception
 
     def test_unicode_string_with_unicode(self):