Static code analysis and corrections

backend/venv/lib/python3.6/site-packages/pandas/tests/series/indexing/conftest.py

@@ -0,0 +1,8 @@
+import pytest
+
+from pandas.tests.series.common import TestData
+
+
+@pytest.fixture(scope='module')
+def test_data():
+    return TestData()

backend/venv/lib/python3.6/site-packages/pandas/tests/series/indexing/test_alter_index.py

@@ -0,0 +1,548 @@
+# coding=utf-8
+# pylint: disable-msg=E1101,W0612
+
+import pytest
+
+from datetime import datetime
+
+import pandas as pd
+import numpy as np
+
+from numpy import nan
+
+from pandas import compat
+
+from pandas import (Series, date_range, isna, Categorical)
+from pandas.compat import lrange, range
+
+from pandas.util.testing import (assert_series_equal)
+import pandas.util.testing as tm
+
+
+@pytest.mark.parametrize(
+    'first_slice,second_slice', [
+        [[2, None], [None, -5]],
+        [[None, 0], [None, -5]],
+        [[None, -5], [None, 0]],
+        [[None, 0], [None, 0]]
+    ])
+@pytest.mark.parametrize('fill', [None, -1])
+def test_align(test_data, first_slice, second_slice, join_type, fill):
+    a = test_data.ts[slice(*first_slice)]
+    b = test_data.ts[slice(*second_slice)]
+
+    aa, ab = a.align(b, join=join_type, fill_value=fill)
+
+    join_index = a.index.join(b.index, how=join_type)
+    if fill is not None:
+        diff_a = aa.index.difference(join_index)
+        diff_b = ab.index.difference(join_index)
+        if len(diff_a) > 0:
+            assert (aa.reindex(diff_a) == fill).all()
+        if len(diff_b) > 0:
+            assert (ab.reindex(diff_b) == fill).all()
+
+    ea = a.reindex(join_index)
+    eb = b.reindex(join_index)
+
+    if fill is not None:
+        ea = ea.fillna(fill)
+        eb = eb.fillna(fill)
+
+    assert_series_equal(aa, ea)
+    assert_series_equal(ab, eb)
+    assert aa.name == 'ts'
+    assert ea.name == 'ts'
+    assert ab.name == 'ts'
+    assert eb.name == 'ts'
+
+
+@pytest.mark.parametrize(
+    'first_slice,second_slice', [
+        [[2, None], [None, -5]],
+        [[None, 0], [None, -5]],
+        [[None, -5], [None, 0]],
+        [[None, 0], [None, 0]]
+    ])
+@pytest.mark.parametrize('method', ['pad', 'bfill'])
+@pytest.mark.parametrize('limit', [None, 1])
+def test_align_fill_method(test_data,
+                           first_slice, second_slice,
+                           join_type, method, limit):
+    a = test_data.ts[slice(*first_slice)]
+    b = test_data.ts[slice(*second_slice)]
+
+    aa, ab = a.align(b, join=join_type, method=method, limit=limit)
+
+    join_index = a.index.join(b.index, how=join_type)
+    ea = a.reindex(join_index)
+    eb = b.reindex(join_index)
+
+    ea = ea.fillna(method=method, limit=limit)
+    eb = eb.fillna(method=method, limit=limit)
+
+    assert_series_equal(aa, ea)
+    assert_series_equal(ab, eb)
+
+
+def test_align_nocopy(test_data):
+    b = test_data.ts[:5].copy()
+
+    # do copy
+    a = test_data.ts.copy()
+    ra, _ = a.align(b, join='left')
+    ra[:5] = 5
+    assert not (a[:5] == 5).any()
+
+    # do not copy
+    a = test_data.ts.copy()
+    ra, _ = a.align(b, join='left', copy=False)
+    ra[:5] = 5
+    assert (a[:5] == 5).all()
+
+    # do copy
+    a = test_data.ts.copy()
+    b = test_data.ts[:5].copy()
+    _, rb = a.align(b, join='right')
+    rb[:3] = 5
+    assert not (b[:3] == 5).any()
+
+    # do not copy
+    a = test_data.ts.copy()
+    b = test_data.ts[:5].copy()
+    _, rb = a.align(b, join='right', copy=False)
+    rb[:2] = 5
+    assert (b[:2] == 5).all()
+
+
+def test_align_same_index(test_data):
+    a, b = test_data.ts.align(test_data.ts, copy=False)
+    assert a.index is test_data.ts.index
+    assert b.index is test_data.ts.index
+
+    a, b = test_data.ts.align(test_data.ts, copy=True)
+    assert a.index is not test_data.ts.index
+    assert b.index is not test_data.ts.index
+
+
+def test_align_multiindex():
+    # GH 10665
+
+    midx = pd.MultiIndex.from_product([range(2), range(3), range(2)],
+                                      names=('a', 'b', 'c'))
+    idx = pd.Index(range(2), name='b')
+    s1 = pd.Series(np.arange(12, dtype='int64'), index=midx)
+    s2 = pd.Series(np.arange(2, dtype='int64'), index=idx)
+
+    # these must be the same results (but flipped)
+    res1l, res1r = s1.align(s2, join='left')
+    res2l, res2r = s2.align(s1, join='right')
+
+    expl = s1
+    tm.assert_series_equal(expl, res1l)
+    tm.assert_series_equal(expl, res2r)
+    expr = pd.Series([0, 0, 1, 1, np.nan, np.nan] * 2, index=midx)
+    tm.assert_series_equal(expr, res1r)
+    tm.assert_series_equal(expr, res2l)
+
+    res1l, res1r = s1.align(s2, join='right')
+    res2l, res2r = s2.align(s1, join='left')
+
+    exp_idx = pd.MultiIndex.from_product([range(2), range(2), range(2)],
+                                         names=('a', 'b', 'c'))
+    expl = pd.Series([0, 1, 2, 3, 6, 7, 8, 9], index=exp_idx)
+    tm.assert_series_equal(expl, res1l)
+    tm.assert_series_equal(expl, res2r)
+    expr = pd.Series([0, 0, 1, 1] * 2, index=exp_idx)
+    tm.assert_series_equal(expr, res1r)
+    tm.assert_series_equal(expr, res2l)
+
+
+def test_reindex(test_data):
+    identity = test_data.series.reindex(test_data.series.index)
+
+    # __array_interface__ is not defined for older numpies
+    # and on some pythons
+    try:
+        assert np.may_share_memory(test_data.series.index, identity.index)
+    except AttributeError:
+        pass
+
+    assert identity.index.is_(test_data.series.index)
+    assert identity.index.identical(test_data.series.index)
+
+    subIndex = test_data.series.index[10:20]
+    subSeries = test_data.series.reindex(subIndex)
+
+    for idx, val in compat.iteritems(subSeries):
+        assert val == test_data.series[idx]
+
+    subIndex2 = test_data.ts.index[10:20]
+    subTS = test_data.ts.reindex(subIndex2)
+
+    for idx, val in compat.iteritems(subTS):
+        assert val == test_data.ts[idx]
+    stuffSeries = test_data.ts.reindex(subIndex)
+
+    assert np.isnan(stuffSeries).all()
+
+    # This is extremely important for the Cython code to not screw up
+    nonContigIndex = test_data.ts.index[::2]
+    subNonContig = test_data.ts.reindex(nonContigIndex)
+    for idx, val in compat.iteritems(subNonContig):
+        assert val == test_data.ts[idx]
+
+    # return a copy the same index here
+    result = test_data.ts.reindex()
+    assert not (result is test_data.ts)
+
+
+def test_reindex_nan():
+    ts = Series([2, 3, 5, 7], index=[1, 4, nan, 8])
+
+    i, j = [nan, 1, nan, 8, 4, nan], [2, 0, 2, 3, 1, 2]
+    assert_series_equal(ts.reindex(i), ts.iloc[j])
+
+    ts.index = ts.index.astype('object')
+
+    # reindex coerces index.dtype to float, loc/iloc doesn't
+    assert_series_equal(ts.reindex(i), ts.iloc[j], check_index_type=False)
+
+
+def test_reindex_series_add_nat():
+    rng = date_range('1/1/2000 00:00:00', periods=10, freq='10s')
+    series = Series(rng)
+
+    result = series.reindex(lrange(15))
+    assert np.issubdtype(result.dtype, np.dtype('M8[ns]'))
+
+    mask = result.isna()
+    assert mask[-5:].all()
+    assert not mask[:-5].any()
+
+
+def test_reindex_with_datetimes():
+    rng = date_range('1/1/2000', periods=20)
+    ts = Series(np.random.randn(20), index=rng)
+
+    result = ts.reindex(list(ts.index[5:10]))
+    expected = ts[5:10]
+    tm.assert_series_equal(result, expected)
+
+    result = ts[list(ts.index[5:10])]
+    tm.assert_series_equal(result, expected)
+
+
+def test_reindex_corner(test_data):
+    # (don't forget to fix this) I think it's fixed
+    test_data.empty.reindex(test_data.ts.index, method='pad')  # it works
+
+    # corner case: pad empty series
+    reindexed = test_data.empty.reindex(test_data.ts.index, method='pad')
+
+    # pass non-Index
+    reindexed = test_data.ts.reindex(list(test_data.ts.index))
+    assert_series_equal(test_data.ts, reindexed)
+
+    # bad fill method
+    ts = test_data.ts[::2]
+    pytest.raises(Exception, ts.reindex, test_data.ts.index, method='foo')
+
+
+def test_reindex_pad():
+    s = Series(np.arange(10), dtype='int64')
+    s2 = s[::2]
+
+    reindexed = s2.reindex(s.index, method='pad')
+    reindexed2 = s2.reindex(s.index, method='ffill')
+    assert_series_equal(reindexed, reindexed2)
+
+    expected = Series([0, 0, 2, 2, 4, 4, 6, 6, 8, 8], index=np.arange(10))
+    assert_series_equal(reindexed, expected)
+
+    # GH4604
+    s = Series([1, 2, 3, 4, 5], index=['a', 'b', 'c', 'd', 'e'])
+    new_index = ['a', 'g', 'c', 'f']
+    expected = Series([1, 1, 3, 3], index=new_index)
+
+    # this changes dtype because the ffill happens after
+    result = s.reindex(new_index).ffill()
+    assert_series_equal(result, expected.astype('float64'))
+
+    result = s.reindex(new_index).ffill(downcast='infer')
+    assert_series_equal(result, expected)
+
+    expected = Series([1, 5, 3, 5], index=new_index)
+    result = s.reindex(new_index, method='ffill')
+    assert_series_equal(result, expected)
+
+    # inference of new dtype
+    s = Series([True, False, False, True], index=list('abcd'))
+    new_index = 'agc'
+    result = s.reindex(list(new_index)).ffill()
+    expected = Series([True, True, False], index=list(new_index))
+    assert_series_equal(result, expected)
+
+    # GH4618 shifted series downcasting
+    s = Series(False, index=lrange(0, 5))
+    result = s.shift(1).fillna(method='bfill')
+    expected = Series(False, index=lrange(0, 5))
+    assert_series_equal(result, expected)
+
+
+def test_reindex_nearest():
+    s = Series(np.arange(10, dtype='int64'))
+    target = [0.1, 0.9, 1.5, 2.0]
+    actual = s.reindex(target, method='nearest')
+    expected = Series(np.around(target).astype('int64'), target)
+    assert_series_equal(expected, actual)
+
+    actual = s.reindex_like(actual, method='nearest')
+    assert_series_equal(expected, actual)
+
+    actual = s.reindex_like(actual, method='nearest', tolerance=1)
+    assert_series_equal(expected, actual)
+    actual = s.reindex_like(actual, method='nearest',
+                            tolerance=[1, 2, 3, 4])
+    assert_series_equal(expected, actual)
+
+    actual = s.reindex(target, method='nearest', tolerance=0.2)
+    expected = Series([0, 1, np.nan, 2], target)
+    assert_series_equal(expected, actual)
+
+    actual = s.reindex(target, method='nearest',
+                       tolerance=[0.3, 0.01, 0.4, 3])
+    expected = Series([0, np.nan, np.nan, 2], target)
+    assert_series_equal(expected, actual)
+
+
+def test_reindex_backfill():
+    pass
+
+
+def test_reindex_int(test_data):
+    ts = test_data.ts[::2]
+    int_ts = Series(np.zeros(len(ts), dtype=int), index=ts.index)
+
+    # this should work fine
+    reindexed_int = int_ts.reindex(test_data.ts.index)
+
+    # if NaNs introduced
+    assert reindexed_int.dtype == np.float_
+
+    # NO NaNs introduced
+    reindexed_int = int_ts.reindex(int_ts.index[::2])
+    assert reindexed_int.dtype == np.int_
+
+
+def test_reindex_bool(test_data):
+    # A series other than float, int, string, or object
+    ts = test_data.ts[::2]
+    bool_ts = Series(np.zeros(len(ts), dtype=bool), index=ts.index)
+
+    # this should work fine
+    reindexed_bool = bool_ts.reindex(test_data.ts.index)
+
+    # if NaNs introduced
+    assert reindexed_bool.dtype == np.object_
+
+    # NO NaNs introduced
+    reindexed_bool = bool_ts.reindex(bool_ts.index[::2])
+    assert reindexed_bool.dtype == np.bool_
+
+
+def test_reindex_bool_pad(test_data):
+    # fail
+    ts = test_data.ts[5:]
+    bool_ts = Series(np.zeros(len(ts), dtype=bool), index=ts.index)
+    filled_bool = bool_ts.reindex(test_data.ts.index, method='pad')
+    assert isna(filled_bool[:5]).all()
+
+
+def test_reindex_categorical():
+    index = date_range('20000101', periods=3)
+
+    # reindexing to an invalid Categorical
+    s = Series(['a', 'b', 'c'], dtype='category')
+    result = s.reindex(index)
+    expected = Series(Categorical(values=[np.nan, np.nan, np.nan],
+                                  categories=['a', 'b', 'c']))
+    expected.index = index
+    tm.assert_series_equal(result, expected)
+
+    # partial reindexing
+    expected = Series(Categorical(values=['b', 'c'], categories=['a', 'b',
+                                                                 'c']))
+    expected.index = [1, 2]
+    result = s.reindex([1, 2])
+    tm.assert_series_equal(result, expected)
+
+    expected = Series(Categorical(
+        values=['c', np.nan], categories=['a', 'b', 'c']))
+    expected.index = [2, 3]
+    result = s.reindex([2, 3])
+    tm.assert_series_equal(result, expected)
+
+
+def test_reindex_like(test_data):
+    other = test_data.ts[::2]
+    assert_series_equal(test_data.ts.reindex(other.index),
+                        test_data.ts.reindex_like(other))
+
+    # GH 7179
+    day1 = datetime(2013, 3, 5)
+    day2 = datetime(2013, 5, 5)
+    day3 = datetime(2014, 3, 5)
+
+    series1 = Series([5, None, None], [day1, day2, day3])
+    series2 = Series([None, None], [day1, day3])
+
+    result = series1.reindex_like(series2, method='pad')
+    expected = Series([5, np.nan], index=[day1, day3])
+    assert_series_equal(result, expected)
+
+
+def test_reindex_fill_value():
+    # -----------------------------------------------------------
+    # floats
+    floats = Series([1., 2., 3.])
+    result = floats.reindex([1, 2, 3])
+    expected = Series([2., 3., np.nan], index=[1, 2, 3])
+    assert_series_equal(result, expected)
+
+    result = floats.reindex([1, 2, 3], fill_value=0)
+    expected = Series([2., 3., 0], index=[1, 2, 3])
+    assert_series_equal(result, expected)
+
+    # -----------------------------------------------------------
+    # ints
+    ints = Series([1, 2, 3])
+
+    result = ints.reindex([1, 2, 3])
+    expected = Series([2., 3., np.nan], index=[1, 2, 3])
+    assert_series_equal(result, expected)
+
+    # don't upcast
+    result = ints.reindex([1, 2, 3], fill_value=0)
+    expected = Series([2, 3, 0], index=[1, 2, 3])
+    assert issubclass(result.dtype.type, np.integer)
+    assert_series_equal(result, expected)
+
+    # -----------------------------------------------------------
+    # objects
+    objects = Series([1, 2, 3], dtype=object)
+
+    result = objects.reindex([1, 2, 3])
+    expected = Series([2, 3, np.nan], index=[1, 2, 3], dtype=object)
+    assert_series_equal(result, expected)
+
+    result = objects.reindex([1, 2, 3], fill_value='foo')
+    expected = Series([2, 3, 'foo'], index=[1, 2, 3], dtype=object)
+    assert_series_equal(result, expected)
+
+    # ------------------------------------------------------------
+    # bools
+    bools = Series([True, False, True])
+
+    result = bools.reindex([1, 2, 3])
+    expected = Series([False, True, np.nan], index=[1, 2, 3], dtype=object)
+    assert_series_equal(result, expected)
+
+    result = bools.reindex([1, 2, 3], fill_value=False)
+    expected = Series([False, True, False], index=[1, 2, 3])
+    assert_series_equal(result, expected)
+
+
+def test_rename():
+    # GH 17407
+    s = Series(range(1, 6), index=pd.Index(range(2, 7), name='IntIndex'))
+    result = s.rename(str)
+    expected = s.rename(lambda i: str(i))
+    assert_series_equal(result, expected)
+
+    assert result.name == expected.name
+
+
+@pytest.mark.parametrize(
+    'data, index, drop_labels,'
+    ' axis, expected_data, expected_index',
+    [
+        # Unique Index
+        ([1, 2], ['one', 'two'], ['two'],
+         0, [1], ['one']),
+        ([1, 2], ['one', 'two'], ['two'],
+         'rows', [1], ['one']),
+        ([1, 1, 2], ['one', 'two', 'one'], ['two'],
+         0, [1, 2], ['one', 'one']),
+
+        # GH 5248 Non-Unique Index
+        ([1, 1, 2], ['one', 'two', 'one'], 'two',
+         0, [1, 2], ['one', 'one']),
+        ([1, 1, 2], ['one', 'two', 'one'], ['one'],
+         0, [1], ['two']),
+        ([1, 1, 2], ['one', 'two', 'one'], 'one',
+         0, [1], ['two'])])
+def test_drop_unique_and_non_unique_index(data, index, axis, drop_labels,
+                                          expected_data, expected_index):
+
+    s = Series(data=data, index=index)
+    result = s.drop(drop_labels, axis=axis)
+    expected = Series(data=expected_data, index=expected_index)
+    tm.assert_series_equal(result, expected)
+
+
+@pytest.mark.parametrize(
+    'data, index, drop_labels,'
+    ' axis, error_type, error_desc',
+    [
+        # single string/tuple-like
+        (range(3), list('abc'), 'bc',
+         0, KeyError, 'not found in axis'),
+
+        # bad axis
+        (range(3), list('abc'), ('a',),
+         0, KeyError, 'not found in axis'),
+        (range(3), list('abc'), 'one',
+         'columns', ValueError, 'No axis named columns')])
+def test_drop_exception_raised(data, index, drop_labels,
+                               axis, error_type, error_desc):
+
+    with tm.assert_raises_regex(error_type, error_desc):
+        Series(data, index=index).drop(drop_labels, axis=axis)
+
+
+def test_drop_with_ignore_errors():
+    # errors='ignore'
+    s = Series(range(3), index=list('abc'))
+    result = s.drop('bc', errors='ignore')
+    tm.assert_series_equal(result, s)
+    result = s.drop(['a', 'd'], errors='ignore')
+    expected = s.iloc[1:]
+    tm.assert_series_equal(result, expected)
+
+    # GH 8522
+    s = Series([2, 3], index=[True, False])
+    assert s.index.is_object()
+    result = s.drop(True)
+    expected = Series([3], index=[False])
+    tm.assert_series_equal(result, expected)
+
+
+@pytest.mark.parametrize('index', [[1, 2, 3], [1, 1, 3]])
+@pytest.mark.parametrize('drop_labels', [[], [1], [3]])
+def test_drop_empty_list(index, drop_labels):
+    # GH 21494
+    expected_index = [i for i in index if i not in drop_labels]
+    series = pd.Series(index=index).drop(drop_labels)
+    tm.assert_series_equal(series, pd.Series(index=expected_index))
+
+
+@pytest.mark.parametrize('data, index, drop_labels', [
+    (None, [1, 2, 3], [1, 4]),
+    (None, [1, 2, 2], [1, 4]),
+    ([2, 3], [0, 1], [False, True])
+])
+def test_drop_non_empty_list(data, index, drop_labels):
+    # GH 21494 and GH 16877
+    with tm.assert_raises_regex(KeyError, 'not found in axis'):
+        pd.Series(data=data, index=index).drop(drop_labels)

backend/venv/lib/python3.6/site-packages/pandas/tests/series/indexing/test_boolean.py

@@ -0,0 +1,601 @@
+# coding=utf-8
+# pylint: disable-msg=E1101,W0612
+
+import pytest
+
+import pandas as pd
+import numpy as np
+
+from pandas import (Series, date_range, isna, Index, Timestamp)
+from pandas.compat import lrange, range
+from pandas.core.dtypes.common import is_integer
+
+from pandas.core.indexing import IndexingError
+from pandas.tseries.offsets import BDay
+
+from pandas.util.testing import (assert_series_equal)
+import pandas.util.testing as tm
+
+
+def test_getitem_boolean(test_data):
+    s = test_data.series
+    mask = s > s.median()
+
+    # passing list is OK
+    result = s[list(mask)]
+    expected = s[mask]
+    assert_series_equal(result, expected)
+    tm.assert_index_equal(result.index, s.index[mask])
+
+
+def test_getitem_boolean_empty():
+    s = Series([], dtype=np.int64)
+    s.index.name = 'index_name'
+    s = s[s.isna()]
+    assert s.index.name == 'index_name'
+    assert s.dtype == np.int64
+
+    # GH5877
+    # indexing with empty series
+    s = Series(['A', 'B'])
+    expected = Series(np.nan, index=['C'], dtype=object)
+    result = s[Series(['C'], dtype=object)]
+    assert_series_equal(result, expected)
+
+    s = Series(['A', 'B'])
+    expected = Series(dtype=object, index=Index([], dtype='int64'))
+    result = s[Series([], dtype=object)]
+    assert_series_equal(result, expected)
+
+    # invalid because of the boolean indexer
+    # that's empty or not-aligned
+    def f():
+        s[Series([], dtype=bool)]
+
+    pytest.raises(IndexingError, f)
+
+    def f():
+        s[Series([True], dtype=bool)]
+
+    pytest.raises(IndexingError, f)
+
+
+def test_getitem_boolean_object(test_data):
+    # using column from DataFrame
+
+    s = test_data.series
+    mask = s > s.median()
+    omask = mask.astype(object)
+
+    # getitem
+    result = s[omask]
+    expected = s[mask]
+    assert_series_equal(result, expected)
+
+    # setitem
+    s2 = s.copy()
+    cop = s.copy()
+    cop[omask] = 5
+    s2[mask] = 5
+    assert_series_equal(cop, s2)
+
+    # nans raise exception
+    omask[5:10] = np.nan
+    pytest.raises(Exception, s.__getitem__, omask)
+    pytest.raises(Exception, s.__setitem__, omask, 5)
+
+
+def test_getitem_setitem_boolean_corner(test_data):
+    ts = test_data.ts
+    mask_shifted = ts.shift(1, freq=BDay()) > ts.median()
+
+    # these used to raise...??
+
+    pytest.raises(Exception, ts.__getitem__, mask_shifted)
+    pytest.raises(Exception, ts.__setitem__, mask_shifted, 1)
+    # ts[mask_shifted]
+    # ts[mask_shifted] = 1
+
+    pytest.raises(Exception, ts.loc.__getitem__, mask_shifted)
+    pytest.raises(Exception, ts.loc.__setitem__, mask_shifted, 1)
+    # ts.loc[mask_shifted]
+    # ts.loc[mask_shifted] = 2
+
+
+def test_setitem_boolean(test_data):
+    mask = test_data.series > test_data.series.median()
+
+    # similar indexed series
+    result = test_data.series.copy()
+    result[mask] = test_data.series * 2
+    expected = test_data.series * 2
+    assert_series_equal(result[mask], expected[mask])
+
+    # needs alignment
+    result = test_data.series.copy()
+    result[mask] = (test_data.series * 2)[0:5]
+    expected = (test_data.series * 2)[0:5].reindex_like(test_data.series)
+    expected[-mask] = test_data.series[mask]
+    assert_series_equal(result[mask], expected[mask])
+
+
+def test_get_set_boolean_different_order(test_data):
+    ordered = test_data.series.sort_values()
+
+    # setting
+    copy = test_data.series.copy()
+    copy[ordered > 0] = 0
+
+    expected = test_data.series.copy()
+    expected[expected > 0] = 0
+
+    assert_series_equal(copy, expected)
+
+    # getting
+    sel = test_data.series[ordered > 0]
+    exp = test_data.series[test_data.series > 0]
+    assert_series_equal(sel, exp)
+
+
+def test_where_unsafe():
+    # unsafe dtype changes
+    for dtype in [np.int8, np.int16, np.int32, np.int64, np.float16,
+                  np.float32, np.float64]:
+        s = Series(np.arange(10), dtype=dtype)
+        mask = s < 5
+        s[mask] = lrange(2, 7)
+        expected = Series(lrange(2, 7) + lrange(5, 10), dtype=dtype)
+        assert_series_equal(s, expected)
+        assert s.dtype == expected.dtype
+
+    # these are allowed operations, but are upcasted
+    for dtype in [np.int64, np.float64]:
+        s = Series(np.arange(10), dtype=dtype)
+        mask = s < 5
+        values = [2.5, 3.5, 4.5, 5.5, 6.5]
+        s[mask] = values
+        expected = Series(values + lrange(5, 10), dtype='float64')
+        assert_series_equal(s, expected)
+        assert s.dtype == expected.dtype
+
+    # GH 9731
+    s = Series(np.arange(10), dtype='int64')
+    mask = s > 5
+    values = [2.5, 3.5, 4.5, 5.5]
+    s[mask] = values
+    expected = Series(lrange(6) + values, dtype='float64')
+    assert_series_equal(s, expected)
+
+    # can't do these as we are forced to change the itemsize of the input
+    # to something we cannot
+    for dtype in [np.int8, np.int16, np.int32, np.float16, np.float32]:
+        s = Series(np.arange(10), dtype=dtype)
+        mask = s < 5
+        values = [2.5, 3.5, 4.5, 5.5, 6.5]
+        pytest.raises(Exception, s.__setitem__, tuple(mask), values)
+
+    # GH3235
+    s = Series(np.arange(10), dtype='int64')
+    mask = s < 5
+    s[mask] = lrange(2, 7)
+    expected = Series(lrange(2, 7) + lrange(5, 10), dtype='int64')
+    assert_series_equal(s, expected)
+    assert s.dtype == expected.dtype
+
+    s = Series(np.arange(10), dtype='int64')
+    mask = s > 5
+    s[mask] = [0] * 4
+    expected = Series([0, 1, 2, 3, 4, 5] + [0] * 4, dtype='int64')
+    assert_series_equal(s, expected)
+
+    s = Series(np.arange(10))
+    mask = s > 5
+
+    def f():
+        s[mask] = [5, 4, 3, 2, 1]
+
+    pytest.raises(ValueError, f)
+
+    def f():
+        s[mask] = [0] * 5
+
+    pytest.raises(ValueError, f)
+
+    # dtype changes
+    s = Series([1, 2, 3, 4])
+    result = s.where(s > 2, np.nan)
+    expected = Series([np.nan, np.nan, 3, 4])
+    assert_series_equal(result, expected)
+
+    # GH 4667
+    # setting with None changes dtype
+    s = Series(range(10)).astype(float)
+    s[8] = None
+    result = s[8]
+    assert isna(result)
+
+    s = Series(range(10)).astype(float)
+    s[s > 8] = None
+    result = s[isna(s)]
+    expected = Series(np.nan, index=[9])
+    assert_series_equal(result, expected)
+
+
+def test_where_raise_on_error_deprecation():
+    # gh-14968
+    # deprecation of raise_on_error
+    s = Series(np.random.randn(5))
+    cond = s > 0
+    with tm.assert_produces_warning(FutureWarning):
+        s.where(cond, raise_on_error=True)
+    with tm.assert_produces_warning(FutureWarning):
+        s.mask(cond, raise_on_error=True)
+
+
+def test_where():
+    s = Series(np.random.randn(5))
+    cond = s > 0
+
+    rs = s.where(cond).dropna()
+    rs2 = s[cond]
+    assert_series_equal(rs, rs2)
+
+    rs = s.where(cond, -s)
+    assert_series_equal(rs, s.abs())
+
+    rs = s.where(cond)
+    assert (s.shape == rs.shape)
+    assert (rs is not s)
+
+    # test alignment
+    cond = Series([True, False, False, True, False], index=s.index)
+    s2 = -(s.abs())
+
+    expected = s2[cond].reindex(s2.index[:3]).reindex(s2.index)
+    rs = s2.where(cond[:3])
+    assert_series_equal(rs, expected)
+
+    expected = s2.abs()
+    expected.iloc[0] = s2[0]
+    rs = s2.where(cond[:3], -s2)
+    assert_series_equal(rs, expected)
+
+
+def test_where_error():
+    s = Series(np.random.randn(5))
+    cond = s > 0
+
+    pytest.raises(ValueError, s.where, 1)
+    pytest.raises(ValueError, s.where, cond[:3].values, -s)
+
+    # GH 2745
+    s = Series([1, 2])
+    s[[True, False]] = [0, 1]
+    expected = Series([0, 2])
+    assert_series_equal(s, expected)
+
+    # failures
+    pytest.raises(ValueError, s.__setitem__, tuple([[[True, False]]]),
+                  [0, 2, 3])
+    pytest.raises(ValueError, s.__setitem__, tuple([[[True, False]]]),
+                  [])
+
+
+@pytest.mark.parametrize('klass', [list, tuple, np.array, Series])
+def test_where_array_like(klass):
+    # see gh-15414
+    s = Series([1, 2, 3])
+    cond = [False, True, True]
+    expected = Series([np.nan, 2, 3])
+
+    result = s.where(klass(cond))
+    assert_series_equal(result, expected)
+
+
+@pytest.mark.parametrize('cond', [
+    [1, 0, 1],
+    Series([2, 5, 7]),
+    ["True", "False", "True"],
+    [Timestamp("2017-01-01"), pd.NaT, Timestamp("2017-01-02")]
+])
+def test_where_invalid_input(cond):
+    # see gh-15414: only boolean arrays accepted
+    s = Series([1, 2, 3])
+    msg = "Boolean array expected for the condition"
+
+    with tm.assert_raises_regex(ValueError, msg):
+        s.where(cond)
+
+    msg = "Array conditional must be same shape as self"
+    with tm.assert_raises_regex(ValueError, msg):
+        s.where([True])
+
+
+def test_where_ndframe_align():
+    msg = "Array conditional must be same shape as self"
+    s = Series([1, 2, 3])
+
+    cond = [True]
+    with tm.assert_raises_regex(ValueError, msg):
+        s.where(cond)
+
+    expected = Series([1, np.nan, np.nan])
+
+    out = s.where(Series(cond))
+    tm.assert_series_equal(out, expected)
+
+    cond = np.array([False, True, False, True])
+    with tm.assert_raises_regex(ValueError, msg):
+        s.where(cond)
+
+    expected = Series([np.nan, 2, np.nan])
+
+    out = s.where(Series(cond))
+    tm.assert_series_equal(out, expected)
+
+
+def test_where_setitem_invalid():
+    # GH 2702
+    # make sure correct exceptions are raised on invalid list assignment
+
+    # slice
+    s = Series(list('abc'))
+
+    def f():
+        s[0:3] = list(range(27))
+
+    pytest.raises(ValueError, f)
+
+    s[0:3] = list(range(3))
+    expected = Series([0, 1, 2])
+    assert_series_equal(s.astype(np.int64), expected, )
+
+    # slice with step
+    s = Series(list('abcdef'))
+
+    def f():
+        s[0:4:2] = list(range(27))
+
+    pytest.raises(ValueError, f)
+
+    s = Series(list('abcdef'))
+    s[0:4:2] = list(range(2))
+    expected = Series([0, 'b', 1, 'd', 'e', 'f'])
+    assert_series_equal(s, expected)
+
+    # neg slices
+    s = Series(list('abcdef'))
+
+    def f():
+        s[:-1] = list(range(27))
+
+    pytest.raises(ValueError, f)
+
+    s[-3:-1] = list(range(2))
+    expected = Series(['a', 'b', 'c', 0, 1, 'f'])
+    assert_series_equal(s, expected)
+
+    # list
+    s = Series(list('abc'))
+
+    def f():
+        s[[0, 1, 2]] = list(range(27))
+
+    pytest.raises(ValueError, f)
+
+    s = Series(list('abc'))
+
+    def f():
+        s[[0, 1, 2]] = list(range(2))
+
+    pytest.raises(ValueError, f)
+
+    # scalar
+    s = Series(list('abc'))
+    s[0] = list(range(10))
+    expected = Series([list(range(10)), 'b', 'c'])
+    assert_series_equal(s, expected)
+
+
+@pytest.mark.parametrize('size', range(2, 6))
+@pytest.mark.parametrize('mask', [
+    [True, False, False, False, False],
+    [True, False],
+    [False]
+])
+@pytest.mark.parametrize('item', [
+    2.0, np.nan, np.finfo(np.float).max, np.finfo(np.float).min
+])
+# Test numpy arrays, lists and tuples as the input to be
+# broadcast
+@pytest.mark.parametrize('box', [
+    lambda x: np.array([x]),
+    lambda x: [x],
+    lambda x: (x,)
+])
+def test_broadcast(size, mask, item, box):
+    selection = np.resize(mask, size)
+
+    data = np.arange(size, dtype=float)
+
+    # Construct the expected series by taking the source
+    # data or item based on the selection
+    expected = Series([item if use_item else data[
+        i] for i, use_item in enumerate(selection)])
+
+    s = Series(data)
+    s[selection] = box(item)
+    assert_series_equal(s, expected)
+
+    s = Series(data)
+    result = s.where(~selection, box(item))
+    assert_series_equal(result, expected)
+
+    s = Series(data)
+    result = s.mask(selection, box(item))
+    assert_series_equal(result, expected)
+
+
+def test_where_inplace():
+    s = Series(np.random.randn(5))
+    cond = s > 0
+
+    rs = s.copy()
+
+    rs.where(cond, inplace=True)
+    assert_series_equal(rs.dropna(), s[cond])
+    assert_series_equal(rs, s.where(cond))
+
+    rs = s.copy()
+    rs.where(cond, -s, inplace=True)
+    assert_series_equal(rs, s.where(cond, -s))
+
+
+def test_where_dups():
+    # GH 4550
+    # where crashes with dups in index
+    s1 = Series(list(range(3)))
+    s2 = Series(list(range(3)))
+    comb = pd.concat([s1, s2])
+    result = comb.where(comb < 2)
+    expected = Series([0, 1, np.nan, 0, 1, np.nan],
+                      index=[0, 1, 2, 0, 1, 2])
+    assert_series_equal(result, expected)
+
+    # GH 4548
+    # inplace updating not working with dups
+    comb[comb < 1] = 5
+    expected = Series([5, 1, 2, 5, 1, 2], index=[0, 1, 2, 0, 1, 2])
+    assert_series_equal(comb, expected)
+
+    comb[comb < 2] += 10
+    expected = Series([5, 11, 2, 5, 11, 2], index=[0, 1, 2, 0, 1, 2])
+    assert_series_equal(comb, expected)
+
+
+def test_where_numeric_with_string():
+    # GH 9280
+    s = pd.Series([1, 2, 3])
+    w = s.where(s > 1, 'X')
+
+    assert not is_integer(w[0])
+    assert is_integer(w[1])
+    assert is_integer(w[2])
+    assert isinstance(w[0], str)
+    assert w.dtype == 'object'
+
+    w = s.where(s > 1, ['X', 'Y', 'Z'])
+    assert not is_integer(w[0])
+    assert is_integer(w[1])
+    assert is_integer(w[2])
+    assert isinstance(w[0], str)
+    assert w.dtype == 'object'
+
+    w = s.where(s > 1, np.array(['X', 'Y', 'Z']))
+    assert not is_integer(w[0])
+    assert is_integer(w[1])
+    assert is_integer(w[2])
+    assert isinstance(w[0], str)
+    assert w.dtype == 'object'
+
+
+def test_where_timedelta_coerce():
+    s = Series([1, 2], dtype='timedelta64[ns]')
+    expected = Series([10, 10])
+    mask = np.array([False, False])
+
+    rs = s.where(mask, [10, 10])
+    assert_series_equal(rs, expected)
+
+    rs = s.where(mask, 10)
+    assert_series_equal(rs, expected)
+
+    rs = s.where(mask, 10.0)
+    assert_series_equal(rs, expected)
+
+    rs = s.where(mask, [10.0, 10.0])
+    assert_series_equal(rs, expected)
+
+    rs = s.where(mask, [10.0, np.nan])
+    expected = Series([10, None], dtype='object')
+    assert_series_equal(rs, expected)
+
+
+def test_where_datetime_conversion():
+    s = Series(date_range('20130102', periods=2))
+    expected = Series([10, 10])
+    mask = np.array([False, False])
+
+    rs = s.where(mask, [10, 10])
+    assert_series_equal(rs, expected)
+
+    rs = s.where(mask, 10)
+    assert_series_equal(rs, expected)
+
+    rs = s.where(mask, 10.0)
+    assert_series_equal(rs, expected)
+
+    rs = s.where(mask, [10.0, 10.0])
+    assert_series_equal(rs, expected)
+
+    rs = s.where(mask, [10.0, np.nan])
+    expected = Series([10, None], dtype='object')
+    assert_series_equal(rs, expected)
+
+    # GH 15701
+    timestamps = ['2016-12-31 12:00:04+00:00',
+                  '2016-12-31 12:00:04.010000+00:00']
+    s = Series([pd.Timestamp(t) for t in timestamps])
+    rs = s.where(Series([False, True]))
+    expected = Series([pd.NaT, s[1]])
+    assert_series_equal(rs, expected)
+
+
+def test_mask():
+    # compare with tested results in test_where
+    s = Series(np.random.randn(5))
+    cond = s > 0
+
+    rs = s.where(~cond, np.nan)
+    assert_series_equal(rs, s.mask(cond))
+
+    rs = s.where(~cond)
+    rs2 = s.mask(cond)
+    assert_series_equal(rs, rs2)
+
+    rs = s.where(~cond, -s)
+    rs2 = s.mask(cond, -s)
+    assert_series_equal(rs, rs2)
+
+    cond = Series([True, False, False, True, False], index=s.index)
+    s2 = -(s.abs())
+    rs = s2.where(~cond[:3])
+    rs2 = s2.mask(cond[:3])
+    assert_series_equal(rs, rs2)
+
+    rs = s2.where(~cond[:3], -s2)
+    rs2 = s2.mask(cond[:3], -s2)
+    assert_series_equal(rs, rs2)
+
+    pytest.raises(ValueError, s.mask, 1)
+    pytest.raises(ValueError, s.mask, cond[:3].values, -s)
+
+    # dtype changes
+    s = Series([1, 2, 3, 4])
+    result = s.mask(s > 2, np.nan)
+    expected = Series([1, 2, np.nan, np.nan])
+    assert_series_equal(result, expected)
+
+
+def test_mask_inplace():
+    s = Series(np.random.randn(5))
+    cond = s > 0
+
+    rs = s.copy()
+    rs.mask(cond, inplace=True)
+    assert_series_equal(rs.dropna(), s[~cond])
+    assert_series_equal(rs, s.mask(cond))
+
+    rs = s.copy()
+    rs.mask(cond, -s, inplace=True)
+    assert_series_equal(rs, s.mask(cond, -s))

backend/venv/lib/python3.6/site-packages/pandas/tests/series/indexing/test_callable.py

@@ -0,0 +1,33 @@
+import pandas as pd
+import pandas.util.testing as tm
+
+
+def test_getitem_callable():
+    # GH 12533
+    s = pd.Series(4, index=list('ABCD'))
+    result = s[lambda x: 'A']
+    assert result == s.loc['A']
+
+    result = s[lambda x: ['A', 'B']]
+    tm.assert_series_equal(result, s.loc[['A', 'B']])
+
+    result = s[lambda x: [True, False, True, True]]
+    tm.assert_series_equal(result, s.iloc[[0, 2, 3]])
+
+
+def test_setitem_callable():
+    # GH 12533
+    s = pd.Series([1, 2, 3, 4], index=list('ABCD'))
+    s[lambda x: 'A'] = -1
+    tm.assert_series_equal(s, pd.Series([-1, 2, 3, 4], index=list('ABCD')))
+
+
+def test_setitem_other_callable():
+    # GH 13299
+    inc = lambda x: x + 1
+
+    s = pd.Series([1, 2, -1, 4])
+    s[s < 0] = inc
+
+    expected = pd.Series([1, 2, inc, 4])
+    tm.assert_series_equal(s, expected)

backend/venv/lib/python3.6/site-packages/pandas/tests/series/indexing/test_datetime.py

@@ -0,0 +1,709 @@
+# coding=utf-8
+# pylint: disable-msg=E1101,W0612
+
+import pytest
+
+from datetime import datetime, timedelta
+
+import numpy as np
+import pandas as pd
+
+from pandas import (Series, DataFrame,
+                    date_range, Timestamp, DatetimeIndex, NaT)
+
+from pandas.compat import lrange, range
+from pandas.util.testing import (assert_series_equal,
+                                 assert_frame_equal, assert_almost_equal)
+
+import pandas.util.testing as tm
+
+import pandas._libs.index as _index
+from pandas._libs import tslib
+
+
+"""
+Also test support for datetime64[ns] in Series / DataFrame
+"""
+
+
+def test_fancy_getitem():
+    dti = DatetimeIndex(freq='WOM-1FRI', start=datetime(2005, 1, 1),
+                        end=datetime(2010, 1, 1))
+
+    s = Series(np.arange(len(dti)), index=dti)
+
+    assert s[48] == 48
+    assert s['1/2/2009'] == 48
+    assert s['2009-1-2'] == 48
+    assert s[datetime(2009, 1, 2)] == 48
+    assert s[Timestamp(datetime(2009, 1, 2))] == 48
+    pytest.raises(KeyError, s.__getitem__, '2009-1-3')
+
+    assert_series_equal(s['3/6/2009':'2009-06-05'],
+                        s[datetime(2009, 3, 6):datetime(2009, 6, 5)])
+
+
+def test_fancy_setitem():
+    dti = DatetimeIndex(freq='WOM-1FRI', start=datetime(2005, 1, 1),
+                        end=datetime(2010, 1, 1))
+
+    s = Series(np.arange(len(dti)), index=dti)
+    s[48] = -1
+    assert s[48] == -1
+    s['1/2/2009'] = -2
+    assert s[48] == -2
+    s['1/2/2009':'2009-06-05'] = -3
+    assert (s[48:54] == -3).all()
+
+
+def test_dti_snap():
+    dti = DatetimeIndex(['1/1/2002', '1/2/2002', '1/3/2002', '1/4/2002',
+                         '1/5/2002', '1/6/2002', '1/7/2002'], freq='D')
+
+    res = dti.snap(freq='W-MON')
+    exp = date_range('12/31/2001', '1/7/2002', freq='w-mon')
+    exp = exp.repeat([3, 4])
+    assert (res == exp).all()
+
+    res = dti.snap(freq='B')
+
+    exp = date_range('1/1/2002', '1/7/2002', freq='b')
+    exp = exp.repeat([1, 1, 1, 2, 2])
+    assert (res == exp).all()
+
+
+def test_dti_reset_index_round_trip():
+    dti = DatetimeIndex(start='1/1/2001', end='6/1/2001', freq='D')
+    d1 = DataFrame({'v': np.random.rand(len(dti))}, index=dti)
+    d2 = d1.reset_index()
+    assert d2.dtypes[0] == np.dtype('M8[ns]')
+    d3 = d2.set_index('index')
+    assert_frame_equal(d1, d3, check_names=False)
+
+    # #2329
+    stamp = datetime(2012, 11, 22)
+    df = DataFrame([[stamp, 12.1]], columns=['Date', 'Value'])
+    df = df.set_index('Date')
+
+    assert df.index[0] == stamp
+    assert df.reset_index()['Date'][0] == stamp
+
+
+def test_series_set_value():
+    # #1561
+
+    dates = [datetime(2001, 1, 1), datetime(2001, 1, 2)]
+    index = DatetimeIndex(dates)
+
+    with tm.assert_produces_warning(FutureWarning,
+                                    check_stacklevel=False):
+        s = Series().set_value(dates[0], 1.)
+    with tm.assert_produces_warning(FutureWarning,
+                                    check_stacklevel=False):
+        s2 = s.set_value(dates[1], np.nan)
+
+    exp = Series([1., np.nan], index=index)
+
+    assert_series_equal(s2, exp)
+
+    # s = Series(index[:1], index[:1])
+    # s2 = s.set_value(dates[1], index[1])
+    # assert s2.values.dtype == 'M8[ns]'
+
+
+@pytest.mark.slow
+def test_slice_locs_indexerror():
+    times = [datetime(2000, 1, 1) + timedelta(minutes=i * 10)
+             for i in range(100000)]
+    s = Series(lrange(100000), times)
+    s.loc[datetime(1900, 1, 1):datetime(2100, 1, 1)]
+
+
+def test_slicing_datetimes():
+    # GH 7523
+
+    # unique
+    df = DataFrame(np.arange(4., dtype='float64'),
+                   index=[datetime(2001, 1, i, 10, 00)
+                          for i in [1, 2, 3, 4]])
+    result = df.loc[datetime(2001, 1, 1, 10):]
+    assert_frame_equal(result, df)
+    result = df.loc[:datetime(2001, 1, 4, 10)]
+    assert_frame_equal(result, df)
+    result = df.loc[datetime(2001, 1, 1, 10):datetime(2001, 1, 4, 10)]
+    assert_frame_equal(result, df)
+
+    result = df.loc[datetime(2001, 1, 1, 11):]
+    expected = df.iloc[1:]
+    assert_frame_equal(result, expected)
+    result = df.loc['20010101 11':]
+    assert_frame_equal(result, expected)
+
+    # duplicates
+    df = pd.DataFrame(np.arange(5., dtype='float64'),
+                      index=[datetime(2001, 1, i, 10, 00)
+                             for i in [1, 2, 2, 3, 4]])
+
+    result = df.loc[datetime(2001, 1, 1, 10):]
+    assert_frame_equal(result, df)
+    result = df.loc[:datetime(2001, 1, 4, 10)]
+    assert_frame_equal(result, df)
+    result = df.loc[datetime(2001, 1, 1, 10):datetime(2001, 1, 4, 10)]
+    assert_frame_equal(result, df)
+
+    result = df.loc[datetime(2001, 1, 1, 11):]
+    expected = df.iloc[1:]
+    assert_frame_equal(result, expected)
+    result = df.loc['20010101 11':]
+    assert_frame_equal(result, expected)
+
+
+def test_frame_datetime64_duplicated():
+    dates = date_range('2010-07-01', end='2010-08-05')
+
+    tst = DataFrame({'symbol': 'AAA', 'date': dates})
+    result = tst.duplicated(['date', 'symbol'])
+    assert (-result).all()
+
+    tst = DataFrame({'date': dates})
+    result = tst.duplicated()
+    assert (-result).all()
+
+
+def test_getitem_setitem_datetime_tz_pytz():
+    from pytz import timezone as tz
+    from pandas import date_range
+
+    N = 50
+    # testing with timezone, GH #2785
+    rng = date_range('1/1/1990', periods=N, freq='H', tz='US/Eastern')
+    ts = Series(np.random.randn(N), index=rng)
+
+    # also test Timestamp tz handling, GH #2789
+    result = ts.copy()
+    result["1990-01-01 09:00:00+00:00"] = 0
+    result["1990-01-01 09:00:00+00:00"] = ts[4]
+    assert_series_equal(result, ts)
+
+    result = ts.copy()
+    result["1990-01-01 03:00:00-06:00"] = 0
+    result["1990-01-01 03:00:00-06:00"] = ts[4]
+    assert_series_equal(result, ts)
+
+    # repeat with datetimes
+    result = ts.copy()
+    result[datetime(1990, 1, 1, 9, tzinfo=tz('UTC'))] = 0
+    result[datetime(1990, 1, 1, 9, tzinfo=tz('UTC'))] = ts[4]
+    assert_series_equal(result, ts)
+
+    result = ts.copy()
+
+    # comparison dates with datetime MUST be localized!
+    date = tz('US/Central').localize(datetime(1990, 1, 1, 3))
+    result[date] = 0
+    result[date] = ts[4]
+    assert_series_equal(result, ts)
+
+
+def test_getitem_setitem_datetime_tz_dateutil():
+    from dateutil.tz import tzutc
+    from pandas._libs.tslibs.timezones import dateutil_gettz as gettz
+
+    tz = lambda x: tzutc() if x == 'UTC' else gettz(
+        x)  # handle special case for utc in dateutil
+
+    from pandas import date_range
+
+    N = 50
+
+    # testing with timezone, GH #2785
+    rng = date_range('1/1/1990', periods=N, freq='H',
+                     tz='America/New_York')
+    ts = Series(np.random.randn(N), index=rng)
+
+    # also test Timestamp tz handling, GH #2789
+    result = ts.copy()
+    result["1990-01-01 09:00:00+00:00"] = 0
+    result["1990-01-01 09:00:00+00:00"] = ts[4]
+    assert_series_equal(result, ts)
+
+    result = ts.copy()
+    result["1990-01-01 03:00:00-06:00"] = 0
+    result["1990-01-01 03:00:00-06:00"] = ts[4]
+    assert_series_equal(result, ts)
+
+    # repeat with datetimes
+    result = ts.copy()
+    result[datetime(1990, 1, 1, 9, tzinfo=tz('UTC'))] = 0
+    result[datetime(1990, 1, 1, 9, tzinfo=tz('UTC'))] = ts[4]
+    assert_series_equal(result, ts)
+
+    result = ts.copy()
+    result[datetime(1990, 1, 1, 3, tzinfo=tz('America/Chicago'))] = 0
+    result[datetime(1990, 1, 1, 3, tzinfo=tz('America/Chicago'))] = ts[4]
+    assert_series_equal(result, ts)
+
+
+def test_getitem_setitem_datetimeindex():
+    N = 50
+    # testing with timezone, GH #2785
+    rng = date_range('1/1/1990', periods=N, freq='H', tz='US/Eastern')
+    ts = Series(np.random.randn(N), index=rng)
+
+    result = ts["1990-01-01 04:00:00"]
+    expected = ts[4]
+    assert result == expected
+
+    result = ts.copy()
+    result["1990-01-01 04:00:00"] = 0
+    result["1990-01-01 04:00:00"] = ts[4]
+    assert_series_equal(result, ts)
+
+    result = ts["1990-01-01 04:00:00":"1990-01-01 07:00:00"]
+    expected = ts[4:8]
+    assert_series_equal(result, expected)
+
+    result = ts.copy()
+    result["1990-01-01 04:00:00":"1990-01-01 07:00:00"] = 0
+    result["1990-01-01 04:00:00":"1990-01-01 07:00:00"] = ts[4:8]
+    assert_series_equal(result, ts)
+
+    lb = "1990-01-01 04:00:00"
+    rb = "1990-01-01 07:00:00"
+    # GH#18435 strings get a pass from tzawareness compat
+    result = ts[(ts.index >= lb) & (ts.index <= rb)]
+    expected = ts[4:8]
+    assert_series_equal(result, expected)
+
+    lb = "1990-01-01 04:00:00-0500"
+    rb = "1990-01-01 07:00:00-0500"
+    result = ts[(ts.index >= lb) & (ts.index <= rb)]
+    expected = ts[4:8]
+    assert_series_equal(result, expected)
+
+    # repeat all the above with naive datetimes
+    result = ts[datetime(1990, 1, 1, 4)]
+    expected = ts[4]
+    assert result == expected
+
+    result = ts.copy()
+    result[datetime(1990, 1, 1, 4)] = 0
+    result[datetime(1990, 1, 1, 4)] = ts[4]
+    assert_series_equal(result, ts)
+
+    result = ts[datetime(1990, 1, 1, 4):datetime(1990, 1, 1, 7)]
+    expected = ts[4:8]
+    assert_series_equal(result, expected)
+
+    result = ts.copy()
+    result[datetime(1990, 1, 1, 4):datetime(1990, 1, 1, 7)] = 0
+    result[datetime(1990, 1, 1, 4):datetime(1990, 1, 1, 7)] = ts[4:8]
+    assert_series_equal(result, ts)
+
+    lb = datetime(1990, 1, 1, 4)
+    rb = datetime(1990, 1, 1, 7)
+    with pytest.raises(TypeError):
+        # tznaive vs tzaware comparison is invalid
+        # see GH#18376, GH#18162
+        ts[(ts.index >= lb) & (ts.index <= rb)]
+
+    lb = pd.Timestamp(datetime(1990, 1, 1, 4)).tz_localize(rng.tzinfo)
+    rb = pd.Timestamp(datetime(1990, 1, 1, 7)).tz_localize(rng.tzinfo)
+    result = ts[(ts.index >= lb) & (ts.index <= rb)]
+    expected = ts[4:8]
+    assert_series_equal(result, expected)
+
+    result = ts[ts.index[4]]
+    expected = ts[4]
+    assert result == expected
+
+    result = ts[ts.index[4:8]]
+    expected = ts[4:8]
+    assert_series_equal(result, expected)
+
+    result = ts.copy()
+    result[ts.index[4:8]] = 0
+    result[4:8] = ts[4:8]
+    assert_series_equal(result, ts)
+
+    # also test partial date slicing
+    result = ts["1990-01-02"]
+    expected = ts[24:48]
+    assert_series_equal(result, expected)
+
+    result = ts.copy()
+    result["1990-01-02"] = 0
+    result["1990-01-02"] = ts[24:48]
+    assert_series_equal(result, ts)
+
+
+def test_getitem_setitem_periodindex():
+    from pandas import period_range
+
+    N = 50
+    rng = period_range('1/1/1990', periods=N, freq='H')
+    ts = Series(np.random.randn(N), index=rng)
+
+    result = ts["1990-01-01 04"]
+    expected = ts[4]
+    assert result == expected
+
+    result = ts.copy()
+    result["1990-01-01 04"] = 0
+    result["1990-01-01 04"] = ts[4]
+    assert_series_equal(result, ts)
+
+    result = ts["1990-01-01 04":"1990-01-01 07"]
+    expected = ts[4:8]
+    assert_series_equal(result, expected)
+
+    result = ts.copy()
+    result["1990-01-01 04":"1990-01-01 07"] = 0
+    result["1990-01-01 04":"1990-01-01 07"] = ts[4:8]
+    assert_series_equal(result, ts)
+
+    lb = "1990-01-01 04"
+    rb = "1990-01-01 07"
+    result = ts[(ts.index >= lb) & (ts.index <= rb)]
+    expected = ts[4:8]
+    assert_series_equal(result, expected)
+
+    # GH 2782
+    result = ts[ts.index[4]]
+    expected = ts[4]
+    assert result == expected
+
+    result = ts[ts.index[4:8]]
+    expected = ts[4:8]
+    assert_series_equal(result, expected)
+
+    result = ts.copy()
+    result[ts.index[4:8]] = 0
+    result[4:8] = ts[4:8]
+    assert_series_equal(result, ts)
+
+
+def test_getitem_median_slice_bug():
+    index = date_range('20090415', '20090519', freq='2B')
+    s = Series(np.random.randn(13), index=index)
+
+    indexer = [slice(6, 7, None)]
+    result = s[indexer]
+    expected = s[indexer[0]]
+    assert_series_equal(result, expected)
+
+
+def test_datetime_indexing():
+    from pandas import date_range
+
+    index = date_range('1/1/2000', '1/7/2000')
+    index = index.repeat(3)
+
+    s = Series(len(index), index=index)
+    stamp = Timestamp('1/8/2000')
+
+    pytest.raises(KeyError, s.__getitem__, stamp)
+    s[stamp] = 0
+    assert s[stamp] == 0
+
+    # not monotonic
+    s = Series(len(index), index=index)
+    s = s[::-1]
+
+    pytest.raises(KeyError, s.__getitem__, stamp)
+    s[stamp] = 0
+    assert s[stamp] == 0
+
+
+"""
+test duplicates in time series
+"""
+
+
+@pytest.fixture(scope='module')
+def dups():
+    dates = [datetime(2000, 1, 2), datetime(2000, 1, 2),
+             datetime(2000, 1, 2), datetime(2000, 1, 3),
+             datetime(2000, 1, 3), datetime(2000, 1, 3),
+             datetime(2000, 1, 4), datetime(2000, 1, 4),
+             datetime(2000, 1, 4), datetime(2000, 1, 5)]
+
+    return Series(np.random.randn(len(dates)), index=dates)
+
+
+def test_constructor(dups):
+    assert isinstance(dups, Series)
+    assert isinstance(dups.index, DatetimeIndex)
+
+
+def test_is_unique_monotonic(dups):
+    assert not dups.index.is_unique
+
+
+def test_index_unique(dups):
+    uniques = dups.index.unique()
+    expected = DatetimeIndex([datetime(2000, 1, 2), datetime(2000, 1, 3),
+                              datetime(2000, 1, 4), datetime(2000, 1, 5)])
+    assert uniques.dtype == 'M8[ns]'  # sanity
+    tm.assert_index_equal(uniques, expected)
+    assert dups.index.nunique() == 4
+
+    # #2563
+    assert isinstance(uniques, DatetimeIndex)
+
+    dups_local = dups.index.tz_localize('US/Eastern')
+    dups_local.name = 'foo'
+    result = dups_local.unique()
+    expected = DatetimeIndex(expected, name='foo')
+    expected = expected.tz_localize('US/Eastern')
+    assert result.tz is not None
+    assert result.name == 'foo'
+    tm.assert_index_equal(result, expected)
+
+    # NaT, note this is excluded
+    arr = [1370745748 + t for t in range(20)] + [tslib.iNaT]
+    idx = DatetimeIndex(arr * 3)
+    tm.assert_index_equal(idx.unique(), DatetimeIndex(arr))
+    assert idx.nunique() == 20
+    assert idx.nunique(dropna=False) == 21
+
+    arr = [Timestamp('2013-06-09 02:42:28') + timedelta(seconds=t)
+           for t in range(20)] + [NaT]
+    idx = DatetimeIndex(arr * 3)
+    tm.assert_index_equal(idx.unique(), DatetimeIndex(arr))
+    assert idx.nunique() == 20
+    assert idx.nunique(dropna=False) == 21
+
+
+def test_index_dupes_contains():
+    d = datetime(2011, 12, 5, 20, 30)
+    ix = DatetimeIndex([d, d])
+    assert d in ix
+
+
+def test_duplicate_dates_indexing(dups):
+    ts = dups
+
+    uniques = ts.index.unique()
+    for date in uniques:
+        result = ts[date]
+
+        mask = ts.index == date
+        total = (ts.index == date).sum()
+        expected = ts[mask]
+        if total > 1:
+            assert_series_equal(result, expected)
+        else:
+            assert_almost_equal(result, expected[0])
+
+        cp = ts.copy()
+        cp[date] = 0
+        expected = Series(np.where(mask, 0, ts), index=ts.index)
+        assert_series_equal(cp, expected)
+
+    pytest.raises(KeyError, ts.__getitem__, datetime(2000, 1, 6))
+
+    # new index
+    ts[datetime(2000, 1, 6)] = 0
+    assert ts[datetime(2000, 1, 6)] == 0
+
+
+def test_range_slice():
+    idx = DatetimeIndex(['1/1/2000', '1/2/2000', '1/2/2000', '1/3/2000',
+                         '1/4/2000'])
+
+    ts = Series(np.random.randn(len(idx)), index=idx)
+
+    result = ts['1/2/2000':]
+    expected = ts[1:]
+    assert_series_equal(result, expected)
+
+    result = ts['1/2/2000':'1/3/2000']
+    expected = ts[1:4]
+    assert_series_equal(result, expected)
+
+
+def test_groupby_average_dup_values(dups):
+    result = dups.groupby(level=0).mean()
+    expected = dups.groupby(dups.index).mean()
+    assert_series_equal(result, expected)
+
+
+def test_indexing_over_size_cutoff():
+    import datetime
+    # #1821
+
+    old_cutoff = _index._SIZE_CUTOFF
+    try:
+        _index._SIZE_CUTOFF = 1000
+
+        # create large list of non periodic datetime
+        dates = []
+        sec = datetime.timedelta(seconds=1)
+        half_sec = datetime.timedelta(microseconds=500000)
+        d = datetime.datetime(2011, 12, 5, 20, 30)
+        n = 1100
+        for i in range(n):
+            dates.append(d)
+            dates.append(d + sec)
+            dates.append(d + sec + half_sec)
+            dates.append(d + sec + sec + half_sec)
+            d += 3 * sec
+
+        # duplicate some values in the list
+        duplicate_positions = np.random.randint(0, len(dates) - 1, 20)
+        for p in duplicate_positions:
+            dates[p + 1] = dates[p]
+
+        df = DataFrame(np.random.randn(len(dates), 4),
+                       index=dates,
+                       columns=list('ABCD'))
+
+        pos = n * 3
+        timestamp = df.index[pos]
+        assert timestamp in df.index
+
+        # it works!
+        df.loc[timestamp]
+        assert len(df.loc[[timestamp]]) > 0
+    finally:
+        _index._SIZE_CUTOFF = old_cutoff
+
+
+def test_indexing_unordered():
+    # GH 2437
+    rng = date_range(start='2011-01-01', end='2011-01-15')
+    ts = Series(np.random.rand(len(rng)), index=rng)
+    ts2 = pd.concat([ts[0:4], ts[-4:], ts[4:-4]])
+
+    for t in ts.index:
+        # TODO: unused?
+        s = str(t)  # noqa
+
+        expected = ts[t]
+        result = ts2[t]
+        assert expected == result
+
+    # GH 3448 (ranges)
+    def compare(slobj):
+        result = ts2[slobj].copy()
+        result = result.sort_index()
+        expected = ts[slobj]
+        assert_series_equal(result, expected)
+
+    compare(slice('2011-01-01', '2011-01-15'))
+    compare(slice('2010-12-30', '2011-01-15'))
+    compare(slice('2011-01-01', '2011-01-16'))
+
+    # partial ranges
+    compare(slice('2011-01-01', '2011-01-6'))
+    compare(slice('2011-01-06', '2011-01-8'))
+    compare(slice('2011-01-06', '2011-01-12'))
+
+    # single values
+    result = ts2['2011'].sort_index()
+    expected = ts['2011']
+    assert_series_equal(result, expected)
+
+    # diff freq
+    rng = date_range(datetime(2005, 1, 1), periods=20, freq='M')
+    ts = Series(np.arange(len(rng)), index=rng)
+    ts = ts.take(np.random.permutation(20))
+
+    result = ts['2005']
+    for t in result.index:
+        assert t.year == 2005
+
+
+def test_indexing():
+    idx = date_range("2001-1-1", periods=20, freq='M')
+    ts = Series(np.random.rand(len(idx)), index=idx)
+
+    # getting
+
+    # GH 3070, make sure semantics work on Series/Frame
+    expected = ts['2001']
+    expected.name = 'A'
+
+    df = DataFrame(dict(A=ts))
+    result = df['2001']['A']
+    assert_series_equal(expected, result)
+
+    # setting
+    ts['2001'] = 1
+    expected = ts['2001']
+    expected.name = 'A'
+
+    df.loc['2001', 'A'] = 1
+
+    result = df['2001']['A']
+    assert_series_equal(expected, result)
+
+    # GH3546 (not including times on the last day)
+    idx = date_range(start='2013-05-31 00:00', end='2013-05-31 23:00',
+                     freq='H')
+    ts = Series(lrange(len(idx)), index=idx)
+    expected = ts['2013-05']
+    assert_series_equal(expected, ts)
+
+    idx = date_range(start='2013-05-31 00:00', end='2013-05-31 23:59',
+                     freq='S')
+    ts = Series(lrange(len(idx)), index=idx)
+    expected = ts['2013-05']
+    assert_series_equal(expected, ts)
+
+    idx = [Timestamp('2013-05-31 00:00'),
+           Timestamp(datetime(2013, 5, 31, 23, 59, 59, 999999))]
+    ts = Series(lrange(len(idx)), index=idx)
+    expected = ts['2013']
+    assert_series_equal(expected, ts)
+
+    # GH14826, indexing with a seconds resolution string / datetime object
+    df = DataFrame(np.random.rand(5, 5),
+                   columns=['open', 'high', 'low', 'close', 'volume'],
+                   index=date_range('2012-01-02 18:01:00',
+                                    periods=5, tz='US/Central', freq='s'))
+    expected = df.loc[[df.index[2]]]
+
+    # this is a single date, so will raise
+    pytest.raises(KeyError, df.__getitem__, '2012-01-02 18:01:02', )
+    pytest.raises(KeyError, df.__getitem__, df.index[2], )
+
+
+"""
+test NaT support
+"""
+
+
+def test_set_none_nan():
+    series = Series(date_range('1/1/2000', periods=10))
+    series[3] = None
+    assert series[3] is NaT
+
+    series[3:5] = None
+    assert series[4] is NaT
+
+    series[5] = np.nan
+    assert series[5] is NaT
+
+    series[5:7] = np.nan
+    assert series[6] is NaT
+
+
+def test_nat_operations():
+    # GH 8617
+    s = Series([0, pd.NaT], dtype='m8[ns]')
+    exp = s[0]
+    assert s.median() == exp
+    assert s.min() == exp
+    assert s.max() == exp
+
+
+@pytest.mark.parametrize('method', ["round", "floor", "ceil"])
+@pytest.mark.parametrize('freq', ["s", "5s", "min", "5min", "h", "5h"])
+def test_round_nat(method, freq):
+    # GH14940
+    s = Series([pd.NaT])
+    expected = Series(pd.NaT)
+    round_method = getattr(s.dt, method)
+    assert_series_equal(round_method(freq), expected)

backend/venv/lib/python3.6/site-packages/pandas/tests/series/indexing/test_iloc.py

@@ -0,0 +1,38 @@
+# coding=utf-8
+# pylint: disable-msg=E1101,W0612
+
+import numpy as np
+
+from pandas import Series
+
+from pandas.compat import lrange, range
+from pandas.util.testing import (assert_series_equal,
+                                 assert_almost_equal)
+
+
+def test_iloc():
+    s = Series(np.random.randn(10), index=lrange(0, 20, 2))
+
+    for i in range(len(s)):
+        result = s.iloc[i]
+        exp = s[s.index[i]]
+        assert_almost_equal(result, exp)
+
+    # pass a slice
+    result = s.iloc[slice(1, 3)]
+    expected = s.loc[2:4]
+    assert_series_equal(result, expected)
+
+    # test slice is a view
+    result[:] = 0
+    assert (s[1:3] == 0).all()
+
+    # list of integers
+    result = s.iloc[[0, 2, 3, 4, 5]]
+    expected = s.reindex(s.index[[0, 2, 3, 4, 5]])
+    assert_series_equal(result, expected)
+
+
+def test_iloc_nonunique():
+    s = Series([0, 1, 2], index=[0, 1, 0])
+    assert s.iloc[2] == 2

backend/venv/lib/python3.6/site-packages/pandas/tests/series/indexing/test_indexing.py

@@ -0,0 +1,770 @@
+# coding=utf-8
+# pylint: disable-msg=E1101,W0612
+
+""" test get/set & misc """
+
+import pytest
+
+from datetime import timedelta
+
+import numpy as np
+import pandas as pd
+
+from pandas.core.dtypes.common import is_scalar
+from pandas import (Series, DataFrame, MultiIndex,
+                    Timestamp, Timedelta, Categorical)
+from pandas.tseries.offsets import BDay
+
+from pandas.compat import lrange, range
+
+from pandas.util.testing import (assert_series_equal)
+import pandas.util.testing as tm
+
+
+def test_basic_indexing():
+    s = Series(np.random.randn(5), index=['a', 'b', 'a', 'a', 'b'])
+
+    pytest.raises(IndexError, s.__getitem__, 5)
+    pytest.raises(IndexError, s.__setitem__, 5, 0)
+
+    pytest.raises(KeyError, s.__getitem__, 'c')
+
+    s = s.sort_index()
+
+    pytest.raises(IndexError, s.__getitem__, 5)
+    pytest.raises(IndexError, s.__setitem__, 5, 0)
+
+
+def test_basic_getitem_with_labels(test_data):
+    indices = test_data.ts.index[[5, 10, 15]]
+
+    result = test_data.ts[indices]
+    expected = test_data.ts.reindex(indices)
+    assert_series_equal(result, expected)
+
+    result = test_data.ts[indices[0]:indices[2]]
+    expected = test_data.ts.loc[indices[0]:indices[2]]
+    assert_series_equal(result, expected)
+
+    # integer indexes, be careful
+    s = Series(np.random.randn(10), index=lrange(0, 20, 2))
+    inds = [0, 2, 5, 7, 8]
+    arr_inds = np.array([0, 2, 5, 7, 8])
+    with tm.assert_produces_warning(FutureWarning,
+                                    check_stacklevel=False):
+        result = s[inds]
+    expected = s.reindex(inds)
+    assert_series_equal(result, expected)
+
+    with tm.assert_produces_warning(FutureWarning,
+                                    check_stacklevel=False):
+        result = s[arr_inds]
+    expected = s.reindex(arr_inds)
+    assert_series_equal(result, expected)
+
+    # GH12089
+    # with tz for values
+    s = Series(pd.date_range("2011-01-01", periods=3, tz="US/Eastern"),
+               index=['a', 'b', 'c'])
+    expected = Timestamp('2011-01-01', tz='US/Eastern')
+    result = s.loc['a']
+    assert result == expected
+    result = s.iloc[0]
+    assert result == expected
+    result = s['a']
+    assert result == expected
+
+
+def test_getitem_setitem_ellipsis():
+    s = Series(np.random.randn(10))
+
+    np.fix(s)
+
+    result = s[...]
+    assert_series_equal(result, s)
+
+    s[...] = 5
+    assert (result == 5).all()
+
+
+def test_getitem_get(test_data):
+    test_series = test_data.series
+    test_obj_series = test_data.objSeries
+
+    idx1 = test_series.index[5]
+    idx2 = test_obj_series.index[5]
+
+    assert test_series[idx1] == test_series.get(idx1)
+    assert test_obj_series[idx2] == test_obj_series.get(idx2)
+
+    assert test_series[idx1] == test_series[5]
+    assert test_obj_series[idx2] == test_obj_series[5]
+
+    assert test_series.get(-1) == test_series.get(test_series.index[-1])
+    assert test_series[5] == test_series.get(test_series.index[5])
+
+    # missing
+    d = test_data.ts.index[0] - BDay()
+    pytest.raises(KeyError, test_data.ts.__getitem__, d)
+
+    # None
+    # GH 5652
+    for s in [Series(), Series(index=list('abc'))]:
+        result = s.get(None)
+        assert result is None
+
+
+def test_getitem_fancy(test_data):
+    slice1 = test_data.series[[1, 2, 3]]
+    slice2 = test_data.objSeries[[1, 2, 3]]
+    assert test_data.series.index[2] == slice1.index[1]
+    assert test_data.objSeries.index[2] == slice2.index[1]
+    assert test_data.series[2] == slice1[1]
+    assert test_data.objSeries[2] == slice2[1]
+
+
+def test_getitem_generator(test_data):
+    gen = (x > 0 for x in test_data.series)
+    result = test_data.series[gen]
+    result2 = test_data.series[iter(test_data.series > 0)]
+    expected = test_data.series[test_data.series > 0]
+    assert_series_equal(result, expected)
+    assert_series_equal(result2, expected)
+
+
+def test_type_promotion():
+    # GH12599
+    s = pd.Series()
+    s["a"] = pd.Timestamp("2016-01-01")
+    s["b"] = 3.0
+    s["c"] = "foo"
+    expected = Series([pd.Timestamp("2016-01-01"), 3.0, "foo"],
+                      index=["a", "b", "c"])
+    assert_series_equal(s, expected)
+
+
+@pytest.mark.parametrize(
+    'result_1, duplicate_item, expected_1',
+    [
+        [
+            pd.Series({1: 12, 2: [1, 2, 2, 3]}), pd.Series({1: 313}),
+            pd.Series({1: 12, }, dtype=object),
+        ],
+        [
+            pd.Series({1: [1, 2, 3], 2: [1, 2, 2, 3]}),
+            pd.Series({1: [1, 2, 3]}), pd.Series({1: [1, 2, 3], }),
+        ],
+    ])
+def test_getitem_with_duplicates_indices(
+        result_1, duplicate_item, expected_1):
+    # GH 17610
+    result = result_1.append(duplicate_item)
+    expected = expected_1.append(duplicate_item)
+    assert_series_equal(result[1], expected)
+    assert result[2] == result_1[2]
+
+
+def test_getitem_out_of_bounds(test_data):
+    # don't segfault, GH #495
+    pytest.raises(IndexError, test_data.ts.__getitem__, len(test_data.ts))
+
+    # GH #917
+    s = Series([])
+    pytest.raises(IndexError, s.__getitem__, -1)
+
+
+def test_getitem_setitem_integers():
+    # caused bug without test
+    s = Series([1, 2, 3], ['a', 'b', 'c'])
+
+    assert s.iloc[0] == s['a']
+    s.iloc[0] = 5
+    tm.assert_almost_equal(s['a'], 5)
+
+
+def test_getitem_box_float64(test_data):
+    value = test_data.ts[5]
+    assert isinstance(value, np.float64)
+
+
+def test_series_box_timestamp():
+    rng = pd.date_range('20090415', '20090519', freq='B')
+    ser = Series(rng)
+
+    assert isinstance(ser[5], pd.Timestamp)
+
+    rng = pd.date_range('20090415', '20090519', freq='B')
+    ser = Series(rng, index=rng)
+    assert isinstance(ser[5], pd.Timestamp)
+
+    assert isinstance(ser.iat[5], pd.Timestamp)
+
+
+def test_getitem_ambiguous_keyerror():
+    s = Series(lrange(10), index=lrange(0, 20, 2))
+    pytest.raises(KeyError, s.__getitem__, 1)
+    pytest.raises(KeyError, s.loc.__getitem__, 1)
+
+
+def test_getitem_unordered_dup():
+    obj = Series(lrange(5), index=['c', 'a', 'a', 'b', 'b'])
+    assert is_scalar(obj['c'])
+    assert obj['c'] == 0
+
+
+def test_getitem_dups_with_missing():
+    # breaks reindex, so need to use .loc internally
+    # GH 4246
+    s = Series([1, 2, 3, 4], ['foo', 'bar', 'foo', 'bah'])
+    with tm.assert_produces_warning(FutureWarning,
+                                    check_stacklevel=False):
+        expected = s.loc[['foo', 'bar', 'bah', 'bam']]
+
+    with tm.assert_produces_warning(FutureWarning,
+                                    check_stacklevel=False):
+        result = s[['foo', 'bar', 'bah', 'bam']]
+    assert_series_equal(result, expected)
+
+
+def test_getitem_dups():
+    s = Series(range(5), index=['A', 'A', 'B', 'C', 'C'], dtype=np.int64)
+    expected = Series([3, 4], index=['C', 'C'], dtype=np.int64)
+    result = s['C']
+    assert_series_equal(result, expected)
+
+
+def test_setitem_ambiguous_keyerror():
+    s = Series(lrange(10), index=lrange(0, 20, 2))
+
+    # equivalent of an append
+    s2 = s.copy()
+    s2[1] = 5
+    expected = s.append(Series([5], index=[1]))
+    assert_series_equal(s2, expected)
+
+    s2 = s.copy()
+    s2.loc[1] = 5
+    expected = s.append(Series([5], index=[1]))
+    assert_series_equal(s2, expected)
+
+
+def test_getitem_dataframe():
+    rng = list(range(10))
+    s = pd.Series(10, index=rng)
+    df = pd.DataFrame(rng, index=rng)
+    pytest.raises(TypeError, s.__getitem__, df > 5)
+
+
+def test_setitem(test_data):
+    test_data.ts[test_data.ts.index[5]] = np.NaN
+    test_data.ts[[1, 2, 17]] = np.NaN
+    test_data.ts[6] = np.NaN
+    assert np.isnan(test_data.ts[6])
+    assert np.isnan(test_data.ts[2])
+    test_data.ts[np.isnan(test_data.ts)] = 5
+    assert not np.isnan(test_data.ts[2])
+
+    # caught this bug when writing tests
+    series = Series(tm.makeIntIndex(20).astype(float),
+                    index=tm.makeIntIndex(20))
+
+    series[::2] = 0
+    assert (series[::2] == 0).all()
+
+    # set item that's not contained
+    s = test_data.series.copy()
+    s['foobar'] = 1
+
+    app = Series([1], index=['foobar'], name='series')
+    expected = test_data.series.append(app)
+    assert_series_equal(s, expected)
+
+    # Test for issue #10193
+    key = pd.Timestamp('2012-01-01')
+    series = pd.Series()
+    series[key] = 47
+    expected = pd.Series(47, [key])
+    assert_series_equal(series, expected)
+
+    series = pd.Series([], pd.DatetimeIndex([], freq='D'))
+    series[key] = 47
+    expected = pd.Series(47, pd.DatetimeIndex([key], freq='D'))
+    assert_series_equal(series, expected)
+
+
+def test_setitem_dtypes():
+    # change dtypes
+    # GH 4463
+    expected = Series([np.nan, 2, 3])
+
+    s = Series([1, 2, 3])
+    s.iloc[0] = np.nan
+    assert_series_equal(s, expected)
+
+    s = Series([1, 2, 3])
+    s.loc[0] = np.nan
+    assert_series_equal(s, expected)
+
+    s = Series([1, 2, 3])
+    s[0] = np.nan
+    assert_series_equal(s, expected)
+
+    s = Series([False])
+    s.loc[0] = np.nan
+    assert_series_equal(s, Series([np.nan]))
+
+    s = Series([False, True])
+    s.loc[0] = np.nan
+    assert_series_equal(s, Series([np.nan, 1.0]))
+
+
+def test_set_value(test_data):
+    idx = test_data.ts.index[10]
+    with tm.assert_produces_warning(FutureWarning,
+                                    check_stacklevel=False):
+        res = test_data.ts.set_value(idx, 0)
+    assert res is test_data.ts
+    assert test_data.ts[idx] == 0
+
+    # equiv
+    s = test_data.series.copy()
+    with tm.assert_produces_warning(FutureWarning,
+                                    check_stacklevel=False):
+        res = s.set_value('foobar', 0)
+    assert res is s
+    assert res.index[-1] == 'foobar'
+    assert res['foobar'] == 0
+
+    s = test_data.series.copy()
+    s.loc['foobar'] = 0
+    assert s.index[-1] == 'foobar'
+    assert s['foobar'] == 0
+
+
+def test_setslice(test_data):
+    sl = test_data.ts[5:20]
+    assert len(sl) == len(sl.index)
+    assert sl.index.is_unique
+
+
+def test_basic_getitem_setitem_corner(test_data):
+    # invalid tuples, e.g. td.ts[:, None] vs. td.ts[:, 2]
+    with tm.assert_raises_regex(ValueError, 'tuple-index'):
+        test_data.ts[:, 2]
+    with tm.assert_raises_regex(ValueError, 'tuple-index'):
+        test_data.ts[:, 2] = 2
+
+    # weird lists. [slice(0, 5)] will work but not two slices
+    result = test_data.ts[[slice(None, 5)]]
+    expected = test_data.ts[:5]
+    assert_series_equal(result, expected)
+
+    # OK
+    pytest.raises(Exception, test_data.ts.__getitem__,
+                  [5, slice(None, None)])
+    pytest.raises(Exception, test_data.ts.__setitem__,
+                  [5, slice(None, None)], 2)
+
+
+@pytest.mark.parametrize('tz', ['US/Eastern', 'UTC', 'Asia/Tokyo'])
+def test_setitem_with_tz(tz):
+    orig = pd.Series(pd.date_range('2016-01-01', freq='H', periods=3,
+                                   tz=tz))
+    assert orig.dtype == 'datetime64[ns, {0}]'.format(tz)
+
+    # scalar
+    s = orig.copy()
+    s[1] = pd.Timestamp('2011-01-01', tz=tz)
+    exp = pd.Series([pd.Timestamp('2016-01-01 00:00', tz=tz),
+                     pd.Timestamp('2011-01-01 00:00', tz=tz),
+                     pd.Timestamp('2016-01-01 02:00', tz=tz)])
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s.loc[1] = pd.Timestamp('2011-01-01', tz=tz)
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s.iloc[1] = pd.Timestamp('2011-01-01', tz=tz)
+    tm.assert_series_equal(s, exp)
+
+    # vector
+    vals = pd.Series([pd.Timestamp('2011-01-01', tz=tz),
+                      pd.Timestamp('2012-01-01', tz=tz)], index=[1, 2])
+    assert vals.dtype == 'datetime64[ns, {0}]'.format(tz)
+
+    s[[1, 2]] = vals
+    exp = pd.Series([pd.Timestamp('2016-01-01 00:00', tz=tz),
+                     pd.Timestamp('2011-01-01 00:00', tz=tz),
+                     pd.Timestamp('2012-01-01 00:00', tz=tz)])
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s.loc[[1, 2]] = vals
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s.iloc[[1, 2]] = vals
+    tm.assert_series_equal(s, exp)
+
+
+def test_setitem_with_tz_dst():
+    # GH XXX
+    tz = 'US/Eastern'
+    orig = pd.Series(pd.date_range('2016-11-06', freq='H', periods=3,
+                                   tz=tz))
+    assert orig.dtype == 'datetime64[ns, {0}]'.format(tz)
+
+    # scalar
+    s = orig.copy()
+    s[1] = pd.Timestamp('2011-01-01', tz=tz)
+    exp = pd.Series([pd.Timestamp('2016-11-06 00:00-04:00', tz=tz),
+                     pd.Timestamp('2011-01-01 00:00-05:00', tz=tz),
+                     pd.Timestamp('2016-11-06 01:00-05:00', tz=tz)])
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s.loc[1] = pd.Timestamp('2011-01-01', tz=tz)
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s.iloc[1] = pd.Timestamp('2011-01-01', tz=tz)
+    tm.assert_series_equal(s, exp)
+
+    # vector
+    vals = pd.Series([pd.Timestamp('2011-01-01', tz=tz),
+                      pd.Timestamp('2012-01-01', tz=tz)], index=[1, 2])
+    assert vals.dtype == 'datetime64[ns, {0}]'.format(tz)
+
+    s[[1, 2]] = vals
+    exp = pd.Series([pd.Timestamp('2016-11-06 00:00', tz=tz),
+                     pd.Timestamp('2011-01-01 00:00', tz=tz),
+                     pd.Timestamp('2012-01-01 00:00', tz=tz)])
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s.loc[[1, 2]] = vals
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s.iloc[[1, 2]] = vals
+    tm.assert_series_equal(s, exp)
+
+
+def test_categorial_assigning_ops():
+    orig = Series(Categorical(["b", "b"], categories=["a", "b"]))
+    s = orig.copy()
+    s[:] = "a"
+    exp = Series(Categorical(["a", "a"], categories=["a", "b"]))
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s[1] = "a"
+    exp = Series(Categorical(["b", "a"], categories=["a", "b"]))
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s[s.index > 0] = "a"
+    exp = Series(Categorical(["b", "a"], categories=["a", "b"]))
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s[[False, True]] = "a"
+    exp = Series(Categorical(["b", "a"], categories=["a", "b"]))
+    tm.assert_series_equal(s, exp)
+
+    s = orig.copy()
+    s.index = ["x", "y"]
+    s["y"] = "a"
+    exp = Series(Categorical(["b", "a"], categories=["a", "b"]),
+                 index=["x", "y"])
+    tm.assert_series_equal(s, exp)
+
+    # ensure that one can set something to np.nan
+    s = Series(Categorical([1, 2, 3]))
+    exp = Series(Categorical([1, np.nan, 3], categories=[1, 2, 3]))
+    s[1] = np.nan
+    tm.assert_series_equal(s, exp)
+
+
+def test_slice(test_data):
+    numSlice = test_data.series[10:20]
+    numSliceEnd = test_data.series[-10:]
+    objSlice = test_data.objSeries[10:20]
+
+    assert test_data.series.index[9] not in numSlice.index
+    assert test_data.objSeries.index[9] not in objSlice.index
+
+    assert len(numSlice) == len(numSlice.index)
+    assert test_data.series[numSlice.index[0]] == numSlice[numSlice.index[0]]
+
+    assert numSlice.index[1] == test_data.series.index[11]
+    assert tm.equalContents(numSliceEnd, np.array(test_data.series)[-10:])
+
+    # Test return view.
+    sl = test_data.series[10:20]
+    sl[:] = 0
+
+    assert (test_data.series[10:20] == 0).all()
+
+
+def test_slice_can_reorder_not_uniquely_indexed():
+    s = Series(1, index=['a', 'a', 'b', 'b', 'c'])
+    s[::-1]  # it works!
+
+
+def test_ix_setitem(test_data):
+    inds = test_data.series.index[[3, 4, 7]]
+
+    result = test_data.series.copy()
+    result.loc[inds] = 5
+
+    expected = test_data.series.copy()
+    expected[[3, 4, 7]] = 5
+    assert_series_equal(result, expected)
+
+    result.iloc[5:10] = 10
+    expected[5:10] = 10
+    assert_series_equal(result, expected)
+
+    # set slice with indices
+    d1, d2 = test_data.series.index[[5, 15]]
+    result.loc[d1:d2] = 6
+    expected[5:16] = 6  # because it's inclusive
+    assert_series_equal(result, expected)
+
+    # set index value
+    test_data.series.loc[d1] = 4
+    test_data.series.loc[d2] = 6
+    assert test_data.series[d1] == 4
+    assert test_data.series[d2] == 6
+
+
+def test_setitem_na():
+    # these induce dtype changes
+    expected = Series([np.nan, 3, np.nan, 5, np.nan, 7, np.nan, 9, np.nan])
+    s = Series([2, 3, 4, 5, 6, 7, 8, 9, 10])
+    s[::2] = np.nan
+    assert_series_equal(s, expected)
+
+    # gets coerced to float, right?
+    expected = Series([np.nan, 1, np.nan, 0])
+    s = Series([True, True, False, False])
+    s[::2] = np.nan
+    assert_series_equal(s, expected)
+
+    expected = Series([np.nan, np.nan, np.nan, np.nan, np.nan, 5, 6, 7, 8,
+                       9])
+    s = Series(np.arange(10))
+    s[:5] = np.nan
+    assert_series_equal(s, expected)
+
+
+def test_timedelta_assignment():
+    # GH 8209
+    s = Series([])
+    s.loc['B'] = timedelta(1)
+    tm.assert_series_equal(s, Series(Timedelta('1 days'), index=['B']))
+
+    s = s.reindex(s.index.insert(0, 'A'))
+    tm.assert_series_equal(s, Series(
+        [np.nan, Timedelta('1 days')], index=['A', 'B']))
+
+    result = s.fillna(timedelta(1))
+    expected = Series(Timedelta('1 days'), index=['A', 'B'])
+    tm.assert_series_equal(result, expected)
+
+    s.loc['A'] = timedelta(1)
+    tm.assert_series_equal(s, expected)
+
+    # GH 14155
+    s = Series(10 * [np.timedelta64(10, 'm')])
+    s.loc[[1, 2, 3]] = np.timedelta64(20, 'm')
+    expected = pd.Series(10 * [np.timedelta64(10, 'm')])
+    expected.loc[[1, 2, 3]] = pd.Timedelta(np.timedelta64(20, 'm'))
+    tm.assert_series_equal(s, expected)
+
+
+def test_underlying_data_conversion():
+    # GH 4080
+    df = DataFrame({c: [1, 2, 3] for c in ['a', 'b', 'c']})
+    df.set_index(['a', 'b', 'c'], inplace=True)
+    s = Series([1], index=[(2, 2, 2)])
+    df['val'] = 0
+    df
+    df['val'].update(s)
+
+    expected = DataFrame(
+        dict(a=[1, 2, 3], b=[1, 2, 3], c=[1, 2, 3], val=[0, 1, 0]))
+    expected.set_index(['a', 'b', 'c'], inplace=True)
+    tm.assert_frame_equal(df, expected)
+
+    # GH 3970
+    # these are chained assignments as well
+    pd.set_option('chained_assignment', None)
+    df = DataFrame({"aa": range(5), "bb": [2.2] * 5})
+    df["cc"] = 0.0
+
+    ck = [True] * len(df)
+
+    df["bb"].iloc[0] = .13
+
+    # TODO: unused
+    df_tmp = df.iloc[ck]  # noqa
+
+    df["bb"].iloc[0] = .15
+    assert df['bb'].iloc[0] == 0.15
+    pd.set_option('chained_assignment', 'raise')
+
+    # GH 3217
+    df = DataFrame(dict(a=[1, 3], b=[np.nan, 2]))
+    df['c'] = np.nan
+    df['c'].update(pd.Series(['foo'], index=[0]))
+
+    expected = DataFrame(dict(a=[1, 3], b=[np.nan, 2], c=['foo', np.nan]))
+    tm.assert_frame_equal(df, expected)
+
+
+def test_preserve_refs(test_data):
+    seq = test_data.ts[[5, 10, 15]]
+    seq[1] = np.NaN
+    assert not np.isnan(test_data.ts[10])
+
+
+def test_cast_on_putmask():
+    # GH 2746
+
+    # need to upcast
+    s = Series([1, 2], index=[1, 2], dtype='int64')
+    s[[True, False]] = Series([0], index=[1], dtype='int64')
+    expected = Series([0, 2], index=[1, 2], dtype='int64')
+
+    assert_series_equal(s, expected)
+
+
+def test_type_promote_putmask():
+    # GH8387: test that changing types does not break alignment
+    ts = Series(np.random.randn(100), index=np.arange(100, 0, -1)).round(5)
+    left, mask = ts.copy(), ts > 0
+    right = ts[mask].copy().map(str)
+    left[mask] = right
+    assert_series_equal(left, ts.map(lambda t: str(t) if t > 0 else t))
+
+    s = Series([0, 1, 2, 0])
+    mask = s > 0
+    s2 = s[mask].map(str)
+    s[mask] = s2
+    assert_series_equal(s, Series([0, '1', '2', 0]))
+
+    s = Series([0, 'foo', 'bar', 0])
+    mask = Series([False, True, True, False])
+    s2 = s[mask]
+    s[mask] = s2
+    assert_series_equal(s, Series([0, 'foo', 'bar', 0]))
+
+
+def test_multilevel_preserve_name():
+    index = MultiIndex(levels=[['foo', 'bar', 'baz', 'qux'], ['one', 'two',
+                                                              'three']],
+                       labels=[[0, 0, 0, 1, 1, 2, 2, 3, 3, 3],
+                               [0, 1, 2, 0, 1, 1, 2, 0, 1, 2]],
+                       names=['first', 'second'])
+    s = Series(np.random.randn(len(index)), index=index, name='sth')
+
+    result = s['foo']
+    result2 = s.loc['foo']
+    assert result.name == s.name
+    assert result2.name == s.name
+
+
+def test_setitem_scalar_into_readonly_backing_data():
+    # GH14359: test that you cannot mutate a read only buffer
+
+    array = np.zeros(5)
+    array.flags.writeable = False  # make the array immutable
+    series = Series(array)
+
+    for n in range(len(series)):
+        with pytest.raises(ValueError):
+            series[n] = 1
+
+        assert array[n] == 0
+
+
+def test_setitem_slice_into_readonly_backing_data():
+    # GH14359: test that you cannot mutate a read only buffer
+
+    array = np.zeros(5)
+    array.flags.writeable = False  # make the array immutable
+    series = Series(array)
+
+    with pytest.raises(ValueError):
+        series[1:3] = 1
+
+    assert not array.any()
+
+
+"""
+miscellaneous methods
+"""
+
+
+def test_select(test_data):
+    # deprecated: gh-12410
+    with tm.assert_produces_warning(FutureWarning,
+                                    check_stacklevel=False):
+        n = len(test_data.ts)
+        result = test_data.ts.select(lambda x: x >= test_data.ts.index[n // 2])
+        expected = test_data.ts.reindex(test_data.ts.index[n // 2:])
+        assert_series_equal(result, expected)
+
+        result = test_data.ts.select(lambda x: x.weekday() == 2)
+        expected = test_data.ts[test_data.ts.index.weekday == 2]
+        assert_series_equal(result, expected)
+
+
+def test_pop():
+    # GH 6600
+    df = DataFrame({'A': 0, 'B': np.arange(5, dtype='int64'), 'C': 0, })
+    k = df.iloc[4]
+
+    result = k.pop('B')
+    assert result == 4
+
+    expected = Series([0, 0], index=['A', 'C'], name=4)
+    assert_series_equal(k, expected)
+
+
+def test_take():
+    s = Series([-1, 5, 6, 2, 4])
+
+    actual = s.take([1, 3, 4])
+    expected = Series([5, 2, 4], index=[1, 3, 4])
+    tm.assert_series_equal(actual, expected)
+
+    actual = s.take([-1, 3, 4])
+    expected = Series([4, 2, 4], index=[4, 3, 4])
+    tm.assert_series_equal(actual, expected)
+
+    pytest.raises(IndexError, s.take, [1, 10])
+    pytest.raises(IndexError, s.take, [2, 5])
+
+    with tm.assert_produces_warning(FutureWarning):
+        s.take([-1, 3, 4], convert=False)
+
+
+def test_take_categorical():
+    # https://github.com/pandas-dev/pandas/issues/20664
+    s = Series(pd.Categorical(['a', 'b', 'c']))
+    result = s.take([-2, -2, 0])
+    expected = Series(pd.Categorical(['b', 'b', 'a'],
+                      categories=['a', 'b', 'c']),
+                      index=[1, 1, 0])
+    assert_series_equal(result, expected)
+
+
+def test_head_tail(test_data):
+    assert_series_equal(test_data.series.head(), test_data.series[:5])
+    assert_series_equal(test_data.series.head(0), test_data.series[0:0])
+    assert_series_equal(test_data.series.tail(), test_data.series[-5:])
+    assert_series_equal(test_data.series.tail(0), test_data.series[0:0])

backend/venv/lib/python3.6/site-packages/pandas/tests/series/indexing/test_loc.py

@@ -0,0 +1,150 @@
+# coding=utf-8
+# pylint: disable-msg=E1101,W0612
+
+import pytest
+
+import numpy as np
+import pandas as pd
+
+from pandas import (Series, Timestamp)
+
+from pandas.compat import lrange
+from pandas.util.testing import (assert_series_equal)
+
+
+def test_loc_getitem(test_data):
+    inds = test_data.series.index[[3, 4, 7]]
+    assert_series_equal(
+        test_data.series.loc[inds],
+        test_data.series.reindex(inds))
+    assert_series_equal(test_data.series.iloc[5::2], test_data.series[5::2])
+
+    # slice with indices
+    d1, d2 = test_data.ts.index[[5, 15]]
+    result = test_data.ts.loc[d1:d2]
+    expected = test_data.ts.truncate(d1, d2)
+    assert_series_equal(result, expected)
+
+    # boolean
+    mask = test_data.series > test_data.series.median()
+    assert_series_equal(test_data.series.loc[mask], test_data.series[mask])
+
+    # ask for index value
+    assert test_data.ts.loc[d1] == test_data.ts[d1]
+    assert test_data.ts.loc[d2] == test_data.ts[d2]
+
+
+def test_loc_getitem_not_monotonic(test_data):
+    d1, d2 = test_data.ts.index[[5, 15]]
+
+    ts2 = test_data.ts[::2][[1, 2, 0]]
+
+    pytest.raises(KeyError, ts2.loc.__getitem__, slice(d1, d2))
+    pytest.raises(KeyError, ts2.loc.__setitem__, slice(d1, d2), 0)
+
+
+def test_loc_getitem_setitem_integer_slice_keyerrors():
+    s = Series(np.random.randn(10), index=lrange(0, 20, 2))
+
+    # this is OK
+    cp = s.copy()
+    cp.iloc[4:10] = 0
+    assert (cp.iloc[4:10] == 0).all()
+
+    # so is this
+    cp = s.copy()
+    cp.iloc[3:11] = 0
+    assert (cp.iloc[3:11] == 0).values.all()
+
+    result = s.iloc[2:6]
+    result2 = s.loc[3:11]
+    expected = s.reindex([4, 6, 8, 10])
+
+    assert_series_equal(result, expected)
+    assert_series_equal(result2, expected)
+
+    # non-monotonic, raise KeyError
+    s2 = s.iloc[lrange(5) + lrange(5, 10)[::-1]]
+    pytest.raises(KeyError, s2.loc.__getitem__, slice(3, 11))
+    pytest.raises(KeyError, s2.loc.__setitem__, slice(3, 11), 0)
+
+
+def test_loc_getitem_iterator(test_data):
+    idx = iter(test_data.series.index[:10])
+    result = test_data.series.loc[idx]
+    assert_series_equal(result, test_data.series[:10])
+
+
+def test_loc_setitem_boolean(test_data):
+    mask = test_data.series > test_data.series.median()
+
+    result = test_data.series.copy()
+    result.loc[mask] = 0
+    expected = test_data.series
+    expected[mask] = 0
+    assert_series_equal(result, expected)
+
+
+def test_loc_setitem_corner(test_data):
+    inds = list(test_data.series.index[[5, 8, 12]])
+    test_data.series.loc[inds] = 5
+    pytest.raises(Exception, test_data.series.loc.__setitem__,
+                  inds + ['foo'], 5)
+
+
+def test_basic_setitem_with_labels(test_data):
+    indices = test_data.ts.index[[5, 10, 15]]
+
+    cp = test_data.ts.copy()
+    exp = test_data.ts.copy()
+    cp[indices] = 0
+    exp.loc[indices] = 0
+    assert_series_equal(cp, exp)
+
+    cp = test_data.ts.copy()
+    exp = test_data.ts.copy()
+    cp[indices[0]:indices[2]] = 0
+    exp.loc[indices[0]:indices[2]] = 0
+    assert_series_equal(cp, exp)
+
+    # integer indexes, be careful
+    s = Series(np.random.randn(10), index=lrange(0, 20, 2))
+    inds = [0, 4, 6]
+    arr_inds = np.array([0, 4, 6])
+
+    cp = s.copy()
+    exp = s.copy()
+    s[inds] = 0
+    s.loc[inds] = 0
+    assert_series_equal(cp, exp)
+
+    cp = s.copy()
+    exp = s.copy()
+    s[arr_inds] = 0
+    s.loc[arr_inds] = 0
+    assert_series_equal(cp, exp)
+
+    inds_notfound = [0, 4, 5, 6]
+    arr_inds_notfound = np.array([0, 4, 5, 6])
+    pytest.raises(Exception, s.__setitem__, inds_notfound, 0)
+    pytest.raises(Exception, s.__setitem__, arr_inds_notfound, 0)
+
+    # GH12089
+    # with tz for values
+    s = Series(pd.date_range("2011-01-01", periods=3, tz="US/Eastern"),
+               index=['a', 'b', 'c'])
+    s2 = s.copy()
+    expected = Timestamp('2011-01-03', tz='US/Eastern')
+    s2.loc['a'] = expected
+    result = s2.loc['a']
+    assert result == expected
+
+    s2 = s.copy()
+    s2.iloc[0] = expected
+    result = s2.iloc[0]
+    assert result == expected
+
+    s2 = s.copy()
+    s2['a'] = expected
+    result = s2['a']
+    assert result == expected

backend/venv/lib/python3.6/site-packages/pandas/tests/series/indexing/test_numeric.py

@@ -0,0 +1,251 @@
+# coding=utf-8
+# pylint: disable-msg=E1101,W0612
+
+import pytest
+
+import numpy as np
+import pandas as pd
+
+from pandas import (Index, Series, DataFrame)
+
+from pandas.compat import lrange, range
+from pandas.util.testing import (assert_series_equal)
+
+import pandas.util.testing as tm
+
+
+def test_get():
+    # GH 6383
+    s = Series(np.array([43, 48, 60, 48, 50, 51, 50, 45, 57, 48, 56, 45,
+                         51, 39, 55, 43, 54, 52, 51, 54]))
+
+    result = s.get(25, 0)
+    expected = 0
+    assert result == expected
+
+    s = Series(np.array([43, 48, 60, 48, 50, 51, 50, 45, 57, 48, 56,
+                         45, 51, 39, 55, 43, 54, 52, 51, 54]),
+               index=pd.Float64Index(
+                   [25.0, 36.0, 49.0, 64.0, 81.0, 100.0,
+                    121.0, 144.0, 169.0, 196.0, 1225.0,
+                    1296.0, 1369.0, 1444.0, 1521.0, 1600.0,
+                    1681.0, 1764.0, 1849.0, 1936.0],
+                   dtype='object'))
+
+    result = s.get(25, 0)
+    expected = 43
+    assert result == expected
+
+    # GH 7407
+    # with a boolean accessor
+    df = pd.DataFrame({'i': [0] * 3, 'b': [False] * 3})
+    vc = df.i.value_counts()
+    result = vc.get(99, default='Missing')
+    assert result == 'Missing'
+
+    vc = df.b.value_counts()
+    result = vc.get(False, default='Missing')
+    assert result == 3
+
+    result = vc.get(True, default='Missing')
+    assert result == 'Missing'
+
+
+def test_get_nan():
+    # GH 8569
+    s = pd.Float64Index(range(10)).to_series()
+    assert s.get(np.nan) is None
+    assert s.get(np.nan, default='Missing') == 'Missing'
+
+
+def test_get_nan_multiple():
+    # GH 8569
+    # ensure that fixing "test_get_nan" above hasn't broken get
+    # with multiple elements
+    s = pd.Float64Index(range(10)).to_series()
+
+    idx = [2, 30]
+    with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
+        assert_series_equal(s.get(idx),
+                            Series([2, np.nan], index=idx))
+
+    idx = [2, np.nan]
+    with tm.assert_produces_warning(FutureWarning, check_stacklevel=False):
+        assert_series_equal(s.get(idx),
+                            Series([2, np.nan], index=idx))
+
+    # GH 17295 - all missing keys
+    idx = [20, 30]
+    assert(s.get(idx) is None)
+
+    idx = [np.nan, np.nan]
+    assert(s.get(idx) is None)
+
+
+def test_delitem():
+    # GH 5542
+    # should delete the item inplace
+    s = Series(lrange(5))
+    del s[0]
+
+    expected = Series(lrange(1, 5), index=lrange(1, 5))
+    assert_series_equal(s, expected)
+
+    del s[1]
+    expected = Series(lrange(2, 5), index=lrange(2, 5))
+    assert_series_equal(s, expected)
+
+    # empty
+    s = Series()
+
+    def f():
+        del s[0]
+
+    pytest.raises(KeyError, f)
+
+    # only 1 left, del, add, del
+    s = Series(1)
+    del s[0]
+    assert_series_equal(s, Series(dtype='int64', index=Index(
+        [], dtype='int64')))
+    s[0] = 1
+    assert_series_equal(s, Series(1))
+    del s[0]
+    assert_series_equal(s, Series(dtype='int64', index=Index(
+        [], dtype='int64')))
+
+    # Index(dtype=object)
+    s = Series(1, index=['a'])
+    del s['a']
+    assert_series_equal(s, Series(dtype='int64', index=Index(
+        [], dtype='object')))
+    s['a'] = 1
+    assert_series_equal(s, Series(1, index=['a']))
+    del s['a']
+    assert_series_equal(s, Series(dtype='int64', index=Index(
+        [], dtype='object')))
+
+
+def test_slice_float64():
+    values = np.arange(10., 50., 2)
+    index = Index(values)
+
+    start, end = values[[5, 15]]
+
+    s = Series(np.random.randn(20), index=index)
+
+    result = s[start:end]
+    expected = s.iloc[5:16]
+    assert_series_equal(result, expected)
+
+    result = s.loc[start:end]
+    assert_series_equal(result, expected)
+
+    df = DataFrame(np.random.randn(20, 3), index=index)
+
+    result = df[start:end]
+    expected = df.iloc[5:16]
+    tm.assert_frame_equal(result, expected)
+
+    result = df.loc[start:end]
+    tm.assert_frame_equal(result, expected)
+
+
+def test_getitem_negative_out_of_bounds():
+    s = Series(tm.rands_array(5, 10), index=tm.rands_array(10, 10))
+
+    pytest.raises(IndexError, s.__getitem__, -11)
+    pytest.raises(IndexError, s.__setitem__, -11, 'foo')
+
+
+def test_getitem_regression():
+    s = Series(lrange(5), index=lrange(5))
+    result = s[lrange(5)]
+    assert_series_equal(result, s)
+
+
+def test_getitem_setitem_slice_bug():
+    s = Series(lrange(10), lrange(10))
+    result = s[-12:]
+    assert_series_equal(result, s)
+
+    result = s[-7:]
+    assert_series_equal(result, s[3:])
+
+    result = s[:-12]
+    assert_series_equal(result, s[:0])
+
+    s = Series(lrange(10), lrange(10))
+    s[-12:] = 0
+    assert (s == 0).all()
+
+    s[:-12] = 5
+    assert (s == 0).all()
+
+
+def test_getitem_setitem_slice_integers():
+    s = Series(np.random.randn(8), index=[2, 4, 6, 8, 10, 12, 14, 16])
+
+    result = s[:4]
+    expected = s.reindex([2, 4, 6, 8])
+    assert_series_equal(result, expected)
+
+    s[:4] = 0
+    assert (s[:4] == 0).all()
+    assert not (s[4:] == 0).any()
+
+
+def test_setitem_float_labels():
+    # note labels are floats
+    s = Series(['a', 'b', 'c'], index=[0, 0.5, 1])
+    tmp = s.copy()
+
+    s.loc[1] = 'zoo'
+    tmp.iloc[2] = 'zoo'
+
+    assert_series_equal(s, tmp)
+
+
+def test_slice_float_get_set(test_data):
+    pytest.raises(TypeError, lambda: test_data.ts[4.0:10.0])
+
+    def f():
+        test_data.ts[4.0:10.0] = 0
+
+    pytest.raises(TypeError, f)
+
+    pytest.raises(TypeError, test_data.ts.__getitem__, slice(4.5, 10.0))
+    pytest.raises(TypeError, test_data.ts.__setitem__, slice(4.5, 10.0), 0)
+
+
+def test_slice_floats2():
+    s = Series(np.random.rand(10), index=np.arange(10, 20, dtype=float))
+
+    assert len(s.loc[12.0:]) == 8
+    assert len(s.loc[12.5:]) == 7
+
+    i = np.arange(10, 20, dtype=float)
+    i[2] = 12.2
+    s.index = i
+    assert len(s.loc[12.0:]) == 8
+    assert len(s.loc[12.5:]) == 7
+
+
+def test_int_indexing():
+    s = Series(np.random.randn(6), index=[0, 0, 1, 1, 2, 2])
+
+    pytest.raises(KeyError, s.__getitem__, 5)
+
+    pytest.raises(KeyError, s.__getitem__, 'c')
+
+    # not monotonic
+    s = Series(np.random.randn(6), index=[2, 2, 0, 0, 1, 1])
+
+    pytest.raises(KeyError, s.__getitem__, 5)
+
+    pytest.raises(KeyError, s.__getitem__, 'c')
+
+
+def test_getitem_int64(test_data):
+    idx = np.int64(5)
+    assert test_data.ts[idx] == test_data.ts[5]