diff --git a/pandas/tests/indexes/interval/test_astype.py b/pandas/tests/indexes/interval/test_astype.py
index 6bbc938c346f7..4389a22641b72 100644
--- a/pandas/tests/indexes/interval/test_astype.py
+++ b/pandas/tests/indexes/interval/test_astype.py
@@ -1,17 +1,14 @@
 from __future__ import division
 
-import pytest
 import numpy as np
+import pytest
+
+import pandas.util.testing as tm
 from pandas import (
-    Index,
-    IntervalIndex,
-    interval_range,
-    CategoricalIndex,
-    Timestamp,
-    Timedelta,
-    NaT)
+    CategoricalIndex, Index, IntervalIndex, NaT, Timedelta, Timestamp,
+    interval_range
+)
 from pandas.core.dtypes.dtypes import CategoricalDtype, IntervalDtype
-import pandas.util.testing as tm
 
 
 class Base(object):
diff --git a/pandas/tests/indexes/interval/test_construction.py b/pandas/tests/indexes/interval/test_construction.py
index 208d498180692..a937dbc40a843 100644
--- a/pandas/tests/indexes/interval/test_construction.py
+++ b/pandas/tests/indexes/interval/test_construction.py
@@ -1,18 +1,20 @@
 from __future__ import division
 
-import pytest
-import numpy as np
 from functools import partial
 
+import numpy as np
+import pytest
+
+import pandas.core.common as com
+import pandas.util.testing as tm
 from pandas import (
-    Interval, IntervalIndex, Index, Int64Index, Float64Index, Categorical,
-    CategoricalIndex, date_range, timedelta_range, period_range, notna)
+    Categorical, CategoricalIndex, Float64Index, Index, Int64Index, Interval,
+    IntervalIndex, date_range, notna, period_range, timedelta_range
+)
 from pandas.compat import lzip
 from pandas.core.arrays import IntervalArray
 from pandas.core.dtypes.common import is_categorical_dtype
 from pandas.core.dtypes.dtypes import IntervalDtype
-import pandas.core.common as com
-import pandas.util.testing as tm
 
 
 @pytest.fixture(params=[None, 'foo'])
diff --git a/pandas/tests/indexes/interval/test_interval.py b/pandas/tests/indexes/interval/test_interval.py
index f6ed658251dc7..ac0446373a6a1 100644
--- a/pandas/tests/indexes/interval/test_interval.py
+++ b/pandas/tests/indexes/interval/test_interval.py
@@ -1,17 +1,20 @@
 from __future__ import division
 
+import re
 from itertools import permutations
-import pytest
+
 import numpy as np
-import re
+import pytest
+
+import pandas as pd
+import pandas.core.common as com
+import pandas.util.testing as tm
 from pandas import (
-    Interval, IntervalIndex, Index, isna, notna, interval_range, Timestamp,
-    Timedelta, date_range, timedelta_range)
+    Index, Interval, IntervalIndex, Timedelta, Timestamp, date_range,
+    interval_range, isna, notna, timedelta_range
+)
 from pandas.compat import lzip
-import pandas.core.common as com
 from pandas.tests.indexes.common import Base
-import pandas.util.testing as tm
-import pandas as pd
 
 
 @pytest.fixture(scope='class', params=[None, 'foo'])
diff --git a/pandas/tests/indexes/interval/test_interval_new.py b/pandas/tests/indexes/interval/test_interval_new.py
index 02801f6bbc7ee..80905e13e9525 100644
--- a/pandas/tests/indexes/interval/test_interval_new.py
+++ b/pandas/tests/indexes/interval/test_interval_new.py
@@ -1,11 +1,10 @@
 from __future__ import division
 
-import pytest
 import numpy as np
+import pytest
 
-from pandas import Interval, IntervalIndex, Int64Index
 import pandas.util.testing as tm
-
+from pandas import Int64Index, Interval, IntervalIndex
 
 pytestmark = pytest.mark.skip(reason="new indexing tests for issue 16316")
 
diff --git a/pandas/tests/indexes/interval/test_interval_range.py b/pandas/tests/indexes/interval/test_interval_range.py
index 447856e7e9d51..9e11c357c075d 100644
--- a/pandas/tests/indexes/interval/test_interval_range.py
+++ b/pandas/tests/indexes/interval/test_interval_range.py
@@ -1,14 +1,17 @@
 from __future__ import division
 
-import pytest
-import numpy as np
 from datetime import timedelta
+
+import numpy as np
+import pytest
+
+import pandas.util.testing as tm
 from pandas import (
-    Interval, IntervalIndex, Timestamp, Timedelta, DateOffset,
-    interval_range, date_range, timedelta_range)
+    DateOffset, Interval, IntervalIndex, Timedelta, Timestamp, date_range,
+    interval_range, timedelta_range
+)
 from pandas.core.dtypes.common import is_integer
 from pandas.tseries.offsets import Day
-import pandas.util.testing as tm
 
 
 @pytest.fixture(scope='class', params=[None, 'foo'])
diff --git a/pandas/tests/indexes/interval/test_interval_tree.py b/pandas/tests/indexes/interval/test_interval_tree.py
index 5f248bf7725e5..11d2d0283cdcf 100644
--- a/pandas/tests/indexes/interval/test_interval_tree.py
+++ b/pandas/tests/indexes/interval/test_interval_tree.py
@@ -1,10 +1,11 @@
 from __future__ import division
 
-import pytest
 import numpy as np
+import pytest
+
+import pandas.util.testing as tm
 from pandas import compat
 from pandas._libs.interval import IntervalTree
-import pandas.util.testing as tm
 
 
 @pytest.fixture(
diff --git a/pandas/tests/indexes/multi/conftest.py b/pandas/tests/indexes/multi/conftest.py
index afe651d22c6a7..9fad4547648d5 100644
--- a/pandas/tests/indexes/multi/conftest.py
+++ b/pandas/tests/indexes/multi/conftest.py
@@ -2,6 +2,7 @@
 
 import numpy as np
 import pytest
+
 from pandas import Index, MultiIndex
 
 
diff --git a/pandas/tests/indexes/multi/test_analytics.py b/pandas/tests/indexes/multi/test_analytics.py
index 9f6a72f803f9d..8d602b0bb2b1d 100644
--- a/pandas/tests/indexes/multi/test_analytics.py
+++ b/pandas/tests/indexes/multi/test_analytics.py
@@ -1,9 +1,10 @@
 # -*- coding: utf-8 -*-
 
 import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
-import pytest
 from pandas import Index, MultiIndex, date_range, period_range
 from pandas.compat import lrange
 
diff --git a/pandas/tests/indexes/multi/test_astype.py b/pandas/tests/indexes/multi/test_astype.py
index e0e23609290e5..5da96717bc077 100644
--- a/pandas/tests/indexes/multi/test_astype.py
+++ b/pandas/tests/indexes/multi/test_astype.py
@@ -1,10 +1,11 @@
 # -*- coding: utf-8 -*-
 
 import numpy as np
-import pandas.util.testing as tm
 import pytest
-from pandas.util.testing import assert_copy
+
+import pandas.util.testing as tm
 from pandas.core.dtypes.dtypes import CategoricalDtype
+from pandas.util.testing import assert_copy
 
 
 def test_astype(idx):
diff --git a/pandas/tests/indexes/multi/test_compat.py b/pandas/tests/indexes/multi/test_compat.py
index 0dfe322c2eef9..ef3f7ddbbf81d 100644
--- a/pandas/tests/indexes/multi/test_compat.py
+++ b/pandas/tests/indexes/multi/test_compat.py
@@ -2,8 +2,9 @@
 
 
 import numpy as np
-import pandas.util.testing as tm
 import pytest
+
+import pandas.util.testing as tm
 from pandas import MultiIndex
 from pandas.compat import PY3, long
 
diff --git a/pandas/tests/indexes/multi/test_constructor.py b/pandas/tests/indexes/multi/test_constructor.py
index ab2e4c1d863a7..ca9b2766f3798 100644
--- a/pandas/tests/indexes/multi/test_constructor.py
+++ b/pandas/tests/indexes/multi/test_constructor.py
@@ -3,9 +3,10 @@
 import re
 
 import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
-import pytest
 from pandas import Index, MultiIndex, date_range
 from pandas._libs.tslib import Timestamp
 from pandas.compat import lrange, range
diff --git a/pandas/tests/indexes/multi/test_contains.py b/pandas/tests/indexes/multi/test_contains.py
index 7b91a1d14d7e8..c846af3e7cfbe 100644
--- a/pandas/tests/indexes/multi/test_contains.py
+++ b/pandas/tests/indexes/multi/test_contains.py
@@ -1,9 +1,10 @@
 # -*- coding: utf-8 -*-
 
 import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
-import pytest
 from pandas import MultiIndex
 from pandas.compat import PYPY
 
diff --git a/pandas/tests/indexes/multi/test_conversion.py b/pandas/tests/indexes/multi/test_conversion.py
index 8c9566b7e651f..1daccefcfe876 100644
--- a/pandas/tests/indexes/multi/test_conversion.py
+++ b/pandas/tests/indexes/multi/test_conversion.py
@@ -2,6 +2,7 @@
 
 
 import numpy as np
+
 import pandas as pd
 import pandas.util.testing as tm
 from pandas import DataFrame, MultiIndex, date_range
diff --git a/pandas/tests/indexes/multi/test_copy.py b/pandas/tests/indexes/multi/test_copy.py
index 786b90e8f13a2..99a5bcc1c217b 100644
--- a/pandas/tests/indexes/multi/test_copy.py
+++ b/pandas/tests/indexes/multi/test_copy.py
@@ -2,8 +2,9 @@
 
 from copy import copy, deepcopy
 
-import pandas.util.testing as tm
 import pytest
+
+import pandas.util.testing as tm
 from pandas import MultiIndex
 
 
diff --git a/pandas/tests/indexes/multi/test_drop.py b/pandas/tests/indexes/multi/test_drop.py
index 281db7fd2c8a7..a692b510c569c 100644
--- a/pandas/tests/indexes/multi/test_drop.py
+++ b/pandas/tests/indexes/multi/test_drop.py
@@ -2,9 +2,10 @@
 
 
 import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
-import pytest
 from pandas import Index, MultiIndex
 from pandas.compat import lrange
 from pandas.errors import PerformanceWarning
diff --git a/pandas/tests/indexes/multi/test_duplicates.py b/pandas/tests/indexes/multi/test_duplicates.py
index dfc9f329e0753..4336d891adcdc 100644
--- a/pandas/tests/indexes/multi/test_duplicates.py
+++ b/pandas/tests/indexes/multi/test_duplicates.py
@@ -1,14 +1,14 @@
 # -*- coding: utf-8 -*-
 
 from itertools import product
-import pytest
 
 import numpy as np
+import pytest
 
-from pandas.compat import range, u
-from pandas import MultiIndex, DatetimeIndex
-from pandas._libs import hashtable
 import pandas.util.testing as tm
+from pandas import DatetimeIndex, MultiIndex
+from pandas._libs import hashtable
+from pandas.compat import range, u
 
 
 @pytest.mark.parametrize('names', [None, ['first', 'second']])
diff --git a/pandas/tests/indexes/multi/test_equivalence.py b/pandas/tests/indexes/multi/test_equivalence.py
index 7770ee96bbfb3..e3af327ededa2 100644
--- a/pandas/tests/indexes/multi/test_equivalence.py
+++ b/pandas/tests/indexes/multi/test_equivalence.py
@@ -2,6 +2,7 @@
 
 
 import numpy as np
+
 import pandas as pd
 import pandas.util.testing as tm
 from pandas import Index, MultiIndex, Series
diff --git a/pandas/tests/indexes/multi/test_get_set.py b/pandas/tests/indexes/multi/test_get_set.py
index ff2170839b012..cac32ce7040b4 100644
--- a/pandas/tests/indexes/multi/test_get_set.py
+++ b/pandas/tests/indexes/multi/test_get_set.py
@@ -2,9 +2,10 @@
 
 
 import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
-import pytest
 from pandas import CategoricalIndex, Index, MultiIndex
 from pandas.compat import range
 
diff --git a/pandas/tests/indexes/multi/test_indexing.py b/pandas/tests/indexes/multi/test_indexing.py
index 9ec11f1f42b9a..ec83ae4766ab0 100644
--- a/pandas/tests/indexes/multi/test_indexing.py
+++ b/pandas/tests/indexes/multi/test_indexing.py
@@ -8,8 +8,10 @@
 
 import pandas as pd
 import pandas.util.testing as tm
-from pandas import (Categorical, CategoricalIndex, Index, IntervalIndex,
-                    MultiIndex, date_range)
+from pandas import (
+    Categorical, CategoricalIndex, Index, IntervalIndex, MultiIndex,
+    date_range
+)
 from pandas.compat import lrange
 from pandas.core.indexes.base import InvalidIndexError
 from pandas.util.testing import assert_almost_equal
diff --git a/pandas/tests/indexes/multi/test_integrity.py b/pandas/tests/indexes/multi/test_integrity.py
index a2401035c80f8..4d08fa7cef7a4 100644
--- a/pandas/tests/indexes/multi/test_integrity.py
+++ b/pandas/tests/indexes/multi/test_integrity.py
@@ -3,9 +3,10 @@
 import re
 
 import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
-import pytest
 from pandas import IntervalIndex, MultiIndex, RangeIndex
 from pandas.compat import lrange, range
 from pandas.core.dtypes.cast import construct_1d_object_array_from_listlike
diff --git a/pandas/tests/indexes/multi/test_join.py b/pandas/tests/indexes/multi/test_join.py
index ac3958956bae7..8d89ad9f1cd0c 100644
--- a/pandas/tests/indexes/multi/test_join.py
+++ b/pandas/tests/indexes/multi/test_join.py
@@ -2,9 +2,10 @@
 
 
 import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
-import pytest
 from pandas import Index, MultiIndex
 
 
diff --git a/pandas/tests/indexes/multi/test_missing.py b/pandas/tests/indexes/multi/test_missing.py
index 82c486caf2631..7a91ac6d96220 100644
--- a/pandas/tests/indexes/multi/test_missing.py
+++ b/pandas/tests/indexes/multi/test_missing.py
@@ -1,9 +1,10 @@
 # -*- coding: utf-8 -*-
 
 import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
-import pytest
 from pandas import Int64Index, MultiIndex, PeriodIndex, UInt64Index
 from pandas._libs.tslib import iNaT
 from pandas.core.indexes.datetimelike import DatetimeIndexOpsMixin
diff --git a/pandas/tests/indexes/multi/test_monotonic.py b/pandas/tests/indexes/multi/test_monotonic.py
index b9492794c479b..a854035b37544 100644
--- a/pandas/tests/indexes/multi/test_monotonic.py
+++ b/pandas/tests/indexes/multi/test_monotonic.py
@@ -1,8 +1,9 @@
 # -*- coding: utf-8 -*-
 
 import numpy as np
-import pandas as pd
 import pytest
+
+import pandas as pd
 from pandas import Index, IntervalIndex, MultiIndex
 
 
diff --git a/pandas/tests/indexes/multi/test_reindex.py b/pandas/tests/indexes/multi/test_reindex.py
index be1f430140a09..f7651ac258d48 100644
--- a/pandas/tests/indexes/multi/test_reindex.py
+++ b/pandas/tests/indexes/multi/test_reindex.py
@@ -2,6 +2,7 @@
 
 
 import numpy as np
+
 import pandas as pd
 import pandas.util.testing as tm
 from pandas import Index, MultiIndex
diff --git a/pandas/tests/indexes/multi/test_set_ops.py b/pandas/tests/indexes/multi/test_set_ops.py
index 3f61cf2b6ff3f..46d7a27e02aec 100644
--- a/pandas/tests/indexes/multi/test_set_ops.py
+++ b/pandas/tests/indexes/multi/test_set_ops.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 
 import numpy as np
+
 import pandas as pd
 import pandas.util.testing as tm
 from pandas import MultiIndex, Series
diff --git a/pandas/tests/indexes/multi/test_sorting.py b/pandas/tests/indexes/multi/test_sorting.py
index ee29ea1be8aea..b2f12405eb195 100644
--- a/pandas/tests/indexes/multi/test_sorting.py
+++ b/pandas/tests/indexes/multi/test_sorting.py
@@ -1,8 +1,9 @@
 # -*- coding: utf-8 -*-
 import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
-import pytest
 from pandas import CategoricalIndex, DataFrame, Index, MultiIndex, RangeIndex
 from pandas.compat import lrange
 from pandas.errors import PerformanceWarning, UnsortedIndexError
diff --git a/pandas/tests/indexes/timedeltas/test_arithmetic.py b/pandas/tests/indexes/timedeltas/test_arithmetic.py
index e425937fedf4b..82654a3533132 100644
--- a/pandas/tests/indexes/timedeltas/test_arithmetic.py
+++ b/pandas/tests/indexes/timedeltas/test_arithmetic.py
@@ -1,16 +1,17 @@
 # -*- coding: utf-8 -*-
 
-import pytest
-import numpy as np
 from datetime import timedelta
 from distutils.version import LooseVersion
 
+import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
-from pandas import (DatetimeIndex, TimedeltaIndex, Int64Index,
-                    timedelta_range, date_range,
-                    Series,
-                    Timestamp, Timedelta)
+from pandas import (
+    DatetimeIndex, Int64Index, Series, Timedelta, TimedeltaIndex, Timestamp,
+    date_range, timedelta_range
+)
 from pandas.errors import NullFrequencyError
 
 
diff --git a/pandas/tests/indexes/timedeltas/test_astype.py b/pandas/tests/indexes/timedeltas/test_astype.py
index 329f0c2467e8b..54f1ac601fd69 100644
--- a/pandas/tests/indexes/timedeltas/test_astype.py
+++ b/pandas/tests/indexes/timedeltas/test_astype.py
@@ -1,12 +1,13 @@
 from datetime import timedelta
 
-import pytest
-
 import numpy as np
+import pytest
 
 import pandas.util.testing as tm
-from pandas import (TimedeltaIndex, timedelta_range, Int64Index, Float64Index,
-                    Index, Timedelta, NaT)
+from pandas import (
+    Float64Index, Index, Int64Index, NaT, Timedelta, TimedeltaIndex,
+    timedelta_range
+)
 
 
 class TestTimedeltaIndex(object):
diff --git a/pandas/tests/indexes/timedeltas/test_construction.py b/pandas/tests/indexes/timedeltas/test_construction.py
index 447e2b40050f6..a5cfad98b31c1 100644
--- a/pandas/tests/indexes/timedeltas/test_construction.py
+++ b/pandas/tests/indexes/timedeltas/test_construction.py
@@ -1,7 +1,7 @@
-import pytest
+from datetime import timedelta
 
 import numpy as np
-from datetime import timedelta
+import pytest
 
 import pandas as pd
 import pandas.util.testing as tm
diff --git a/pandas/tests/indexes/timedeltas/test_indexing.py b/pandas/tests/indexes/timedeltas/test_indexing.py
index 8ba2c81f429d8..e0e932efafd55 100644
--- a/pandas/tests/indexes/timedeltas/test_indexing.py
+++ b/pandas/tests/indexes/timedeltas/test_indexing.py
@@ -1,11 +1,11 @@
 from datetime import datetime, timedelta
 
-import pytest
 import numpy as np
+import pytest
 
 import pandas as pd
 import pandas.util.testing as tm
-from pandas import TimedeltaIndex, timedelta_range, compat, Index, Timedelta
+from pandas import Index, Timedelta, TimedeltaIndex, compat, timedelta_range
 
 
 class TestGetItem(object):
diff --git a/pandas/tests/indexes/timedeltas/test_ops.py b/pandas/tests/indexes/timedeltas/test_ops.py
index 4b8c37cceb444..9b3bcbef36805 100644
--- a/pandas/tests/indexes/timedeltas/test_ops.py
+++ b/pandas/tests/indexes/timedeltas/test_ops.py
@@ -1,16 +1,18 @@
-import pytest
+from datetime import timedelta
 
 import numpy as np
-from datetime import timedelta
+import pytest
 
 import pandas as pd
 import pandas.util.testing as tm
-from pandas import (Series, Timedelta, Timestamp, TimedeltaIndex,
-                    timedelta_range, to_timedelta)
+from pandas import (
+    Series, Timedelta, TimedeltaIndex, Timestamp, timedelta_range,
+    to_timedelta
+)
 from pandas._libs.tslib import iNaT
+from pandas.core.dtypes.generic import ABCDateOffset
 from pandas.tests.test_base import Ops
 from pandas.tseries.offsets import Day, Hour
-from pandas.core.dtypes.generic import ABCDateOffset
 
 
 class TestTimedeltaIndexOps(Ops):
diff --git a/pandas/tests/indexes/timedeltas/test_partial_slicing.py b/pandas/tests/indexes/timedeltas/test_partial_slicing.py
index 7c5f82193da6d..4dfce3dbe23a6 100644
--- a/pandas/tests/indexes/timedeltas/test_partial_slicing.py
+++ b/pandas/tests/indexes/timedeltas/test_partial_slicing.py
@@ -1,10 +1,9 @@
-import pytest
-
 import numpy as np
-import pandas.util.testing as tm
+import pytest
 
 import pandas as pd
-from pandas import Series, timedelta_range, Timedelta
+import pandas.util.testing as tm
+from pandas import Series, Timedelta, timedelta_range
 from pandas.util.testing import assert_series_equal
 
 
diff --git a/pandas/tests/indexes/timedeltas/test_scalar_compat.py b/pandas/tests/indexes/timedeltas/test_scalar_compat.py
index e571ec2ccf20b..b1d8a12943dca 100644
--- a/pandas/tests/indexes/timedeltas/test_scalar_compat.py
+++ b/pandas/tests/indexes/timedeltas/test_scalar_compat.py
@@ -7,7 +7,7 @@
 
 import pandas as pd
 import pandas.util.testing as tm
-from pandas import timedelta_range, Timedelta, TimedeltaIndex, Index, Series
+from pandas import Index, Series, Timedelta, TimedeltaIndex, timedelta_range
 
 
 class TestVectorizedTimedelta(object):
diff --git a/pandas/tests/indexes/timedeltas/test_setops.py b/pandas/tests/indexes/timedeltas/test_setops.py
index 020e9079b3436..35b2cff13c015 100644
--- a/pandas/tests/indexes/timedeltas/test_setops.py
+++ b/pandas/tests/indexes/timedeltas/test_setops.py
@@ -2,7 +2,7 @@
 
 import pandas as pd
 import pandas.util.testing as tm
-from pandas import TimedeltaIndex, timedelta_range, Int64Index
+from pandas import Int64Index, TimedeltaIndex, timedelta_range
 
 
 class TestTimedeltaIndex(object):
diff --git a/pandas/tests/indexes/timedeltas/test_timedelta.py b/pandas/tests/indexes/timedeltas/test_timedelta.py
index c329d8d15d729..9bc2e93f8468c 100644
--- a/pandas/tests/indexes/timedeltas/test_timedelta.py
+++ b/pandas/tests/indexes/timedeltas/test_timedelta.py
@@ -1,15 +1,17 @@
-import pytest
+from datetime import timedelta
 
 import numpy as np
-from datetime import timedelta
+import pytest
 
 import pandas as pd
 import pandas.util.testing as tm
-from pandas import (timedelta_range, date_range, Series, Timedelta,
-                    TimedeltaIndex, Index, DataFrame,
-                    Int64Index)
-from pandas.util.testing import (assert_almost_equal, assert_series_equal,
-                                 assert_index_equal)
+from pandas import (
+    DataFrame, Index, Int64Index, Series, Timedelta, TimedeltaIndex,
+    date_range, timedelta_range
+)
+from pandas.util.testing import (
+    assert_almost_equal, assert_index_equal, assert_series_equal
+)
 
 from ..datetimelike import DatetimeLike
 
diff --git a/pandas/tests/indexes/timedeltas/test_timedelta_range.py b/pandas/tests/indexes/timedeltas/test_timedelta_range.py
index 1d10e63363cc8..e77c03465d047 100644
--- a/pandas/tests/indexes/timedeltas/test_timedelta_range.py
+++ b/pandas/tests/indexes/timedeltas/test_timedelta_range.py
@@ -1,9 +1,10 @@
-import pytest
 import numpy as np
+import pytest
+
 import pandas as pd
 import pandas.util.testing as tm
+from pandas import timedelta_range, to_timedelta
 from pandas.tseries.offsets import Day, Second
-from pandas import to_timedelta, timedelta_range
 
 
 class TestTimedeltas(object):
diff --git a/pandas/tests/indexes/timedeltas/test_tools.py b/pandas/tests/indexes/timedeltas/test_tools.py
index daa9739132d9e..95a77f1b7fe44 100644
--- a/pandas/tests/indexes/timedeltas/test_tools.py
+++ b/pandas/tests/indexes/timedeltas/test_tools.py
@@ -1,13 +1,13 @@
-import pytest
-
 from datetime import time, timedelta
+
 import numpy as np
+import pytest
 
 import pandas as pd
 import pandas.util.testing as tm
-from pandas.util.testing import assert_series_equal
-from pandas import Series, to_timedelta, isna, TimedeltaIndex
+from pandas import Series, TimedeltaIndex, isna, to_timedelta
 from pandas._libs.tslib import iNaT
+from pandas.util.testing import assert_series_equal
 
 
 class TestTimedeltas(object):
diff --git a/setup.cfg b/setup.cfg
index 83ec8c6a186e1..ad737a1f9e56f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -214,16 +214,8 @@ skip=
     pandas/tests/indexes/datetimes/test_missing.py,
     pandas/tests/indexes/multi/test_duplicates.py,
     pandas/tests/indexes/multi/test_partial_indexing.py,
-    pandas/tests/indexes/multi/test_indexing.py,
-    pandas/tests/indexes/multi/test_get_set.py,
-    pandas/tests/indexes/multi/test_copy.py,
-    pandas/tests/indexes/multi/test_constructor.py,
     pandas/tests/indexes/multi/test_names.py,
-    pandas/tests/indexes/multi/test_equivalence.py,
     pandas/tests/indexes/multi/test_reshape.py,
-    pandas/tests/indexes/multi/test_compat.py,
-    pandas/tests/indexes/multi/test_contains.py,
-    pandas/tests/indexes/multi/test_sorting.py,
     pandas/tests/indexes/multi/test_format.py,
     pandas/tests/indexes/multi/test_set_ops.py,
     pandas/tests/indexes/multi/test_monotonic.py,