diff --git a/pandas/plotting/_compat.py b/pandas/plotting/_compat.py
index 385e88d58cc26..48900c088a125 100644
--- a/pandas/plotting/_compat.py
+++ b/pandas/plotting/_compat.py
@@ -1,9 +1,9 @@
 # being a bit too dynamic
 # pylint: disable=E1101
 from __future__ import division
-import operator
 
 from distutils.version import LooseVersion
+import operator
 
 
 def _mpl_version(version, op):
diff --git a/pandas/plotting/_converter.py b/pandas/plotting/_converter.py
index 444b742ae706e..20e4fdffc39b6 100644
--- a/pandas/plotting/_converter.py
+++ b/pandas/plotting/_converter.py
@@ -1,39 +1,32 @@
-import warnings
-from datetime import datetime, timedelta
 import datetime as pydt
-import numpy as np
+from datetime import datetime, timedelta
+import warnings
 
 from dateutil.relativedelta import relativedelta
-
-import matplotlib.units as units
 import matplotlib.dates as dates
-
-from matplotlib.ticker import Formatter, AutoLocator, Locator
+from matplotlib.ticker import AutoLocator, Formatter, Locator
 from matplotlib.transforms import nonsingular
+import matplotlib.units as units
+import numpy as np
 
 from pandas._libs import tslibs
 from pandas._libs.tslibs import resolution
+import pandas.compat as compat
+from pandas.compat import lrange
 
 from pandas.core.dtypes.common import (
-    is_float, is_integer,
-    is_integer_dtype,
-    is_float_dtype,
-    is_datetime64_ns_dtype,
-    is_period_arraylike,
-    is_nested_list_like
-)
+    is_datetime64_ns_dtype, is_float, is_float_dtype, is_integer,
+    is_integer_dtype, is_nested_list_like, is_period_arraylike)
 from pandas.core.dtypes.generic import ABCSeries
 
-from pandas.compat import lrange
-import pandas.compat as compat
 import pandas.core.common as com
 from pandas.core.index import Index
-
 from pandas.core.indexes.datetimes import date_range
+from pandas.core.indexes.period import Period, PeriodIndex
 import pandas.core.tools.datetimes as tools
+
 import pandas.tseries.frequencies as frequencies
 from pandas.tseries.frequencies import FreqGroup
-from pandas.core.indexes.period import Period, PeriodIndex
 
 # constants
 HOURS_PER_DAY = 24.
diff --git a/pandas/plotting/_core.py b/pandas/plotting/_core.py
index 08a35683cbcf7..8574275c8478b 100644
--- a/pandas/plotting/_core.py
+++ b/pandas/plotting/_core.py
@@ -2,42 +2,35 @@
 # pylint: disable=E1101
 from __future__ import division
 
-import warnings
-import re
 from collections import namedtuple
 from distutils.version import LooseVersion
+import re
+import warnings
 
 import numpy as np
 
-from pandas.util._decorators import cache_readonly, Appender
-from pandas.compat import range, lrange, map, zip, string_types
 import pandas.compat as compat
+from pandas.compat import lrange, map, range, string_types, zip
 from pandas.errors import AbstractMethodError
+from pandas.util._decorators import Appender, cache_readonly
 
-import pandas.core.common as com
-from pandas.core.base import PandasObject
-from pandas.core.config import get_option
-from pandas.core.generic import _shared_docs, _shared_doc_kwargs
-
-from pandas.core.dtypes.missing import isna, notna, remove_na_arraylike
 from pandas.core.dtypes.common import (
-    is_list_like,
-    is_integer,
-    is_number,
-    is_hashable,
-    is_iterator)
+    is_hashable, is_integer, is_iterator, is_list_like, is_number)
 from pandas.core.dtypes.generic import (
-    ABCSeries, ABCDataFrame, ABCPeriodIndex, ABCMultiIndex, ABCIndexClass)
+    ABCDataFrame, ABCIndexClass, ABCMultiIndex, ABCPeriodIndex, ABCSeries)
+from pandas.core.dtypes.missing import isna, notna, remove_na_arraylike
 
-from pandas.io.formats.printing import pprint_thing
+from pandas.core.base import PandasObject
+import pandas.core.common as com
+from pandas.core.config import get_option
+from pandas.core.generic import _shared_doc_kwargs, _shared_docs
 
+from pandas.io.formats.printing import pprint_thing
 from pandas.plotting._compat import _mpl_ge_3_0_0
-from pandas.plotting._style import (plot_params,
-                                    _get_standard_colors)
-from pandas.plotting._tools import (_subplots, _flatten, table,
-                                    _handle_shared_axes, _get_all_lines,
-                                    _get_xlim, _set_ticks_props,
-                                    format_date_labels)
+from pandas.plotting._style import _get_standard_colors, plot_params
+from pandas.plotting._tools import (
+    _flatten, _get_all_lines, _get_xlim, _handle_shared_axes, _set_ticks_props,
+    _subplots, format_date_labels, table)
 
 try:
     from pandas.plotting import _converter
diff --git a/pandas/plotting/_misc.py b/pandas/plotting/_misc.py
index dbad5a04161c9..1c69c03025e00 100644
--- a/pandas/plotting/_misc.py
+++ b/pandas/plotting/_misc.py
@@ -4,14 +4,14 @@
 
 import numpy as np
 
+from pandas.compat import lmap, lrange, range, zip
 from pandas.util._decorators import deprecate_kwarg
-from pandas.core.dtypes.missing import notna
-from pandas.compat import range, lrange, lmap, zip
-from pandas.io.formats.printing import pprint_thing
 
+from pandas.core.dtypes.missing import notna
 
+from pandas.io.formats.printing import pprint_thing
 from pandas.plotting._style import _get_standard_colors
-from pandas.plotting._tools import _subplots, _set_ticks_props
+from pandas.plotting._tools import _set_ticks_props, _subplots
 
 
 def scatter_matrix(frame, alpha=0.5, figsize=None, ax=None, grid=False,
diff --git a/pandas/plotting/_style.py b/pandas/plotting/_style.py
index da26c0f8fa7e2..930c3d1775ad8 100644
--- a/pandas/plotting/_style.py
+++ b/pandas/plotting/_style.py
@@ -2,14 +2,15 @@
 # pylint: disable=E1101
 from __future__ import division
 
-import warnings
 from contextlib import contextmanager
+import warnings
 
 import numpy as np
 
-from pandas.core.dtypes.common import is_list_like
-from pandas.compat import lrange, lmap
 import pandas.compat as compat
+from pandas.compat import lmap, lrange
+
+from pandas.core.dtypes.common import is_list_like
 
 
 def _get_standard_colors(num_colors=None, colormap=None, color_type='default',
diff --git a/pandas/plotting/_timeseries.py b/pandas/plotting/_timeseries.py
index 96e7532747c78..49249ae446747 100644
--- a/pandas/plotting/_timeseries.py
+++ b/pandas/plotting/_timeseries.py
@@ -2,23 +2,21 @@
 
 import functools
 
-import numpy as np
 from matplotlib import pylab
+import numpy as np
 
 from pandas._libs.tslibs.period import Period
+import pandas.compat as compat
 
 from pandas.core.dtypes.generic import (
-    ABCPeriodIndex, ABCDatetimeIndex, ABCTimedeltaIndex)
-
-from pandas.tseries.offsets import DateOffset
-import pandas.tseries.frequencies as frequencies
+    ABCDatetimeIndex, ABCPeriodIndex, ABCTimedeltaIndex)
 
 from pandas.io.formats.printing import pprint_thing
-import pandas.compat as compat
-
-from pandas.plotting._converter import (TimeSeries_DateLocator,
-                                        TimeSeries_DateFormatter,
-                                        TimeSeries_TimedeltaFormatter)
+from pandas.plotting._converter import (
+    TimeSeries_DateFormatter, TimeSeries_DateLocator,
+    TimeSeries_TimedeltaFormatter)
+import pandas.tseries.frequencies as frequencies
+from pandas.tseries.offsets import DateOffset
 
 # ---------------------------------------------------------------------
 # Plotting functions and monkey patches
diff --git a/pandas/plotting/_tools.py b/pandas/plotting/_tools.py
index 7b18a36738bda..4d9e97f11fdd3 100644
--- a/pandas/plotting/_tools.py
+++ b/pandas/plotting/_tools.py
@@ -2,15 +2,16 @@
 # pylint: disable=E1101
 from __future__ import division
 
-import warnings
 from math import ceil
+import warnings
 
 import numpy as np
 
-from pandas.core.dtypes.common import is_list_like
-from pandas.core.dtypes.generic import ABCSeries, ABCIndexClass, ABCDataFrame
 from pandas.compat import range
 
+from pandas.core.dtypes.common import is_list_like
+from pandas.core.dtypes.generic import ABCDataFrame, ABCIndexClass, ABCSeries
+
 
 def format_date_labels(ax, rot):
     # mini version of autofmt_xdate
diff --git a/pandas/tests/generic/test_frame.py b/pandas/tests/generic/test_frame.py
index 9da59ca77d862..f6d5bf86d1489 100644
--- a/pandas/tests/generic/test_frame.py
+++ b/pandas/tests/generic/test_frame.py
@@ -1,23 +1,22 @@
 # -*- coding: utf-8 -*-
 # pylint: disable-msg=E1101,W0612
 
-from operator import methodcaller
 from copy import deepcopy
 from distutils.version import LooseVersion
+from operator import methodcaller
 
-import pytest
 import numpy as np
-import pandas as pd
-
-from pandas import Series, DataFrame, date_range, MultiIndex
+import pytest
 
 from pandas.compat import range
-from pandas.util.testing import (assert_series_equal,
-                                 assert_frame_equal,
-                                 assert_almost_equal)
+import pandas.util._test_decorators as td
 
+import pandas as pd
+from pandas import DataFrame, MultiIndex, Series, date_range
 import pandas.util.testing as tm
-import pandas.util._test_decorators as td
+from pandas.util.testing import (
+    assert_almost_equal, assert_frame_equal, assert_series_equal)
+
 from .test_generic import Generic
 
 try:
diff --git a/pandas/tests/generic/test_generic.py b/pandas/tests/generic/test_generic.py
index 753e6161d8052..e7d5aebeb97f2 100644
--- a/pandas/tests/generic/test_generic.py
+++ b/pandas/tests/generic/test_generic.py
@@ -4,27 +4,25 @@
 from copy import copy, deepcopy
 from warnings import catch_warnings, simplefilter
 
-import pytest
 import numpy as np
-import pandas as pd
-
-from pandas.core.dtypes.common import is_scalar
-from pandas import (Series, DataFrame, Panel,
-                    date_range, MultiIndex)
+import pytest
 
-import pandas.io.formats.printing as printing
+from pandas.compat import PY3, range, zip
 
-from pandas.compat import range, zip, PY3
-from pandas.util.testing import (assert_series_equal,
-                                 assert_panel_equal,
-                                 assert_frame_equal)
+from pandas.core.dtypes.common import is_scalar
 
+import pandas as pd
+from pandas import DataFrame, MultiIndex, Panel, Series, date_range
 import pandas.util.testing as tm
+from pandas.util.testing import (
+    assert_frame_equal, assert_panel_equal, assert_series_equal)
 
+import pandas.io.formats.printing as printing
 
 # ----------------------------------------------------------------------
 # Generic types test cases
 
+
 class Generic(object):
 
     @property
diff --git a/pandas/tests/generic/test_label_or_level_utils.py b/pandas/tests/generic/test_label_or_level_utils.py
index 5cb5e935752a7..91c58e01f0c45 100644
--- a/pandas/tests/generic/test_label_or_level_utils.py
+++ b/pandas/tests/generic/test_label_or_level_utils.py
@@ -1,7 +1,9 @@
 import pytest
+
+from pandas.core.dtypes.missing import array_equivalent
+
 import pandas as pd
 import pandas.util.testing as tm
-from pandas.core.dtypes.missing import array_equivalent
 
 
 # Fixtures
diff --git a/pandas/tests/generic/test_panel.py b/pandas/tests/generic/test_panel.py
index fe80b2af5ea63..8b090d951957e 100644
--- a/pandas/tests/generic/test_panel.py
+++ b/pandas/tests/generic/test_panel.py
@@ -3,12 +3,12 @@
 
 from warnings import catch_warnings, simplefilter
 
-from pandas import Panel
-from pandas.util.testing import (assert_panel_equal,
-                                 assert_almost_equal)
+import pandas.util._test_decorators as td
 
+from pandas import Panel
 import pandas.util.testing as tm
-import pandas.util._test_decorators as td
+from pandas.util.testing import assert_almost_equal, assert_panel_equal
+
 from .test_generic import Generic
 
 
diff --git a/pandas/tests/generic/test_series.py b/pandas/tests/generic/test_series.py
index f0c6c969f765a..10430ebde8225 100644
--- a/pandas/tests/generic/test_series.py
+++ b/pandas/tests/generic/test_series.py
@@ -1,21 +1,20 @@
 # -*- coding: utf-8 -*-
 # pylint: disable-msg=E1101,W0612
 
+from distutils.version import LooseVersion
 from operator import methodcaller
 
-import pytest
 import numpy as np
-import pandas as pd
-
-from distutils.version import LooseVersion
-from pandas import Series, date_range, MultiIndex
+import pytest
 
 from pandas.compat import range
-from pandas.util.testing import (assert_series_equal,
-                                 assert_almost_equal)
+import pandas.util._test_decorators as td
 
+import pandas as pd
+from pandas import MultiIndex, Series, date_range
 import pandas.util.testing as tm
-import pandas.util._test_decorators as td
+from pandas.util.testing import assert_almost_equal, assert_series_equal
+
 from .test_generic import Generic
 
 try:
diff --git a/pandas/tests/tseries/offsets/conftest.py b/pandas/tests/tseries/offsets/conftest.py
index 4766e7e277b13..db8379e335679 100644
--- a/pandas/tests/tseries/offsets/conftest.py
+++ b/pandas/tests/tseries/offsets/conftest.py
@@ -1,4 +1,5 @@
 import pytest
+
 import pandas.tseries.offsets as offsets
 
 
diff --git a/pandas/tests/tseries/offsets/test_fiscal.py b/pandas/tests/tseries/offsets/test_fiscal.py
index 2f17a61917320..a5d7460921fb4 100644
--- a/pandas/tests/tseries/offsets/test_fiscal.py
+++ b/pandas/tests/tseries/offsets/test_fiscal.py
@@ -7,10 +7,12 @@
 from dateutil.relativedelta import relativedelta
 import pytest
 
+from pandas._libs.tslibs.frequencies import INVALID_FREQ_ERR_MSG
+
 from pandas import Timestamp
+
 from pandas.tseries.frequencies import get_offset
-from pandas._libs.tslibs.frequencies import INVALID_FREQ_ERR_MSG
-from pandas.tseries.offsets import FY5253Quarter, FY5253
+from pandas.tseries.offsets import FY5253, FY5253Quarter
 
 from .common import assert_offset_equal, assert_onOffset
 from .test_offsets import Base, WeekDay
diff --git a/pandas/tests/tseries/offsets/test_offsets.py b/pandas/tests/tseries/offsets/test_offsets.py
index d68dd65c9841b..5b820d7b83a32 100644
--- a/pandas/tests/tseries/offsets/test_offsets.py
+++ b/pandas/tests/tseries/offsets/test_offsets.py
@@ -1,42 +1,36 @@
-from distutils.version import LooseVersion
 from datetime import date, datetime, timedelta
+from distutils.version import LooseVersion
 
+import numpy as np
 import pytest
 import pytz
-from pandas.compat import range
-from pandas import compat
-
-import numpy as np
 
+import pandas._libs.tslib as tslib
+from pandas._libs.tslib import NaT, Timestamp
+from pandas._libs.tslibs import conversion, timezones
+from pandas._libs.tslibs.frequencies import (
+    INVALID_FREQ_ERR_MSG, get_freq_code, get_freq_str)
+import pandas._libs.tslibs.offsets as liboffsets
+from pandas._libs.tslibs.timedeltas import Timedelta
+import pandas.compat as compat
+from pandas.compat import range
 from pandas.compat.numpy import np_datetime64_compat
 
-from pandas.core.series import Series
-from pandas._libs.tslibs import conversion
-from pandas._libs.tslibs.frequencies import (get_freq_code, get_freq_str,
-                                             INVALID_FREQ_ERR_MSG)
-from pandas.tseries.frequencies import _offset_map, get_offset
-from pandas.core.indexes.datetimes import _to_m8, DatetimeIndex
+from pandas.core.indexes.datetimes import DatetimeIndex, _to_m8
 from pandas.core.indexes.timedeltas import TimedeltaIndex
-import pandas._libs.tslibs.offsets as liboffsets
-from pandas.tseries.offsets import (BDay, CDay, BQuarterEnd, BMonthEnd,
-                                    BusinessHour, WeekOfMonth, CBMonthEnd,
-                                    CustomBusinessHour,
-                                    CBMonthBegin, BYearEnd, MonthEnd,
-                                    MonthBegin, SemiMonthBegin, SemiMonthEnd,
-                                    BYearBegin, QuarterBegin, BQuarterBegin,
-                                    BMonthBegin, DateOffset, Week, YearBegin,
-                                    YearEnd, Day,
-                                    QuarterEnd, FY5253,
-                                    Nano, Easter, FY5253Quarter,
-                                    LastWeekOfMonth, Tick, CalendarDay)
-import pandas.tseries.offsets as offsets
-from pandas.io.pickle import read_pickle
-from pandas._libs.tslibs import timezones
-from pandas._libs.tslib import NaT, Timestamp
-from pandas._libs.tslibs.timedeltas import Timedelta
-import pandas._libs.tslib as tslib
+from pandas.core.series import Series
 import pandas.util.testing as tm
+
+from pandas.io.pickle import read_pickle
+from pandas.tseries.frequencies import _offset_map, get_offset
 from pandas.tseries.holiday import USFederalHolidayCalendar
+import pandas.tseries.offsets as offsets
+from pandas.tseries.offsets import (
+    FY5253, BDay, BMonthBegin, BMonthEnd, BQuarterBegin, BQuarterEnd,
+    BusinessHour, BYearBegin, BYearEnd, CalendarDay, CBMonthBegin, CBMonthEnd,
+    CDay, CustomBusinessHour, DateOffset, Day, Easter, FY5253Quarter,
+    LastWeekOfMonth, MonthBegin, MonthEnd, Nano, QuarterBegin, QuarterEnd,
+    SemiMonthBegin, SemiMonthEnd, Tick, Week, WeekOfMonth, YearBegin, YearEnd)
 
 from .common import assert_offset_equal, assert_onOffset
 
diff --git a/pandas/tests/tseries/offsets/test_offsets_properties.py b/pandas/tests/tseries/offsets/test_offsets_properties.py
index 07a6895d1e231..a1b68d34f4e18 100644
--- a/pandas/tests/tseries/offsets/test_offsets_properties.py
+++ b/pandas/tests/tseries/offsets/test_offsets_properties.py
@@ -10,18 +10,16 @@
 """
 import warnings
 
-import pytest
-from hypothesis import given, assume, strategies as st
-from hypothesis.extra.pytz import timezones as pytz_timezones
+from hypothesis import assume, given, strategies as st
 from hypothesis.extra.dateutil import timezones as dateutil_timezones
+from hypothesis.extra.pytz import timezones as pytz_timezones
+import pytest
 
 import pandas as pd
 
 from pandas.tseries.offsets import (
-    MonthEnd, MonthBegin, BMonthEnd, BMonthBegin,
-    QuarterEnd, QuarterBegin, BQuarterEnd, BQuarterBegin,
-    YearEnd, YearBegin, BYearEnd, BYearBegin,
-)
+    BMonthBegin, BMonthEnd, BQuarterBegin, BQuarterEnd, BYearBegin, BYearEnd,
+    MonthBegin, MonthEnd, QuarterBegin, QuarterEnd, YearBegin, YearEnd)
 
 # ----------------------------------------------------------------
 # Helpers for generating random data
diff --git a/pandas/tests/tseries/offsets/test_ticks.py b/pandas/tests/tseries/offsets/test_ticks.py
index 128010fe6d32c..d56a8b1cda628 100644
--- a/pandas/tests/tseries/offsets/test_ticks.py
+++ b/pandas/tests/tseries/offsets/test_ticks.py
@@ -4,14 +4,15 @@
 """
 from datetime import datetime, timedelta
 
-import pytest
+from hypothesis import assume, example, given, strategies as st
 import numpy as np
-from hypothesis import given, assume, example, strategies as st
+import pytest
 
 from pandas import Timedelta, Timestamp
+
 from pandas.tseries import offsets
-from pandas.tseries.offsets import (Day, Hour, Minute, Second, Milli, Micro,
-                                    Nano)
+from pandas.tseries.offsets import (
+    Day, Hour, Micro, Milli, Minute, Nano, Second)
 
 from .common import assert_offset_equal
 
diff --git a/pandas/tests/tseries/offsets/test_yqm_offsets.py b/pandas/tests/tseries/offsets/test_yqm_offsets.py
index 22b8cf6119d18..8023ee3139dd5 100644
--- a/pandas/tests/tseries/offsets/test_yqm_offsets.py
+++ b/pandas/tests/tseries/offsets/test_yqm_offsets.py
@@ -7,22 +7,19 @@
 import pytest
 
 import pandas as pd
-from pandas import Timestamp
-from pandas import compat
+from pandas import Timestamp, compat
 
-from pandas.tseries.offsets import (BMonthBegin, BMonthEnd,
-                                    MonthBegin, MonthEnd,
-                                    YearEnd, YearBegin, BYearEnd, BYearBegin,
-                                    QuarterEnd, QuarterBegin,
-                                    BQuarterEnd, BQuarterBegin)
+from pandas.tseries.offsets import (
+    BMonthBegin, BMonthEnd, BQuarterBegin, BQuarterEnd, BYearBegin, BYearEnd,
+    MonthBegin, MonthEnd, QuarterBegin, QuarterEnd, YearBegin, YearEnd)
 
-from .test_offsets import Base
 from .common import assert_offset_equal, assert_onOffset
-
+from .test_offsets import Base
 
 # --------------------------------------------------------------------
 # Misc
 
+
 def test_quarterly_dont_normalize():
     date = datetime(2012, 3, 31, 5, 30)
 
diff --git a/pandas/tests/tseries/test_frequencies.py b/pandas/tests/tseries/test_frequencies.py
index a8def56aa06d4..d2ca70795be80 100644
--- a/pandas/tests/tseries/test_frequencies.py
+++ b/pandas/tests/tseries/test_frequencies.py
@@ -1,26 +1,24 @@
 from datetime import datetime, timedelta
-from pandas.compat import range
 
-import pytest
 import numpy as np
+import pytest
 
-from pandas import (Index, DatetimeIndex, Timestamp, Series,
-                    date_range, period_range)
-
-from pandas._libs.tslibs.frequencies import (_period_code_map,
-                                             INVALID_FREQ_ERR_MSG)
-from pandas._libs.tslibs.ccalendar import MONTHS
 from pandas._libs.tslibs import resolution
-import pandas.tseries.frequencies as frequencies
-from pandas.core.tools.datetimes import to_datetime
-
-import pandas.tseries.offsets as offsets
-from pandas.core.indexes.period import PeriodIndex
+from pandas._libs.tslibs.ccalendar import MONTHS
+from pandas._libs.tslibs.frequencies import (
+    INVALID_FREQ_ERR_MSG, _period_code_map)
 import pandas.compat as compat
-from pandas.compat import is_platform_windows
+from pandas.compat import is_platform_windows, range
 
+from pandas import (
+    DatetimeIndex, Index, Series, Timedelta, Timestamp, date_range,
+    period_range)
+from pandas.core.indexes.period import PeriodIndex
+from pandas.core.tools.datetimes import to_datetime
 import pandas.util.testing as tm
-from pandas import Timedelta
+
+import pandas.tseries.frequencies as frequencies
+import pandas.tseries.offsets as offsets
 
 
 class TestToOffset(object):
diff --git a/pandas/tests/tseries/test_holiday.py b/pandas/tests/tseries/test_holiday.py
index 3ea7e5b8620f2..86f154ed1acc2 100644
--- a/pandas/tests/tseries/test_holiday.py
+++ b/pandas/tests/tseries/test_holiday.py
@@ -1,22 +1,19 @@
+from datetime import datetime
+
 import pytest
+from pytz import utc
 
-from datetime import datetime
+from pandas import DatetimeIndex, compat
 import pandas.util.testing as tm
-from pandas import compat
-from pandas import DatetimeIndex
-from pandas.tseries.holiday import (USFederalHolidayCalendar, USMemorialDay,
-                                    USThanksgivingDay, nearest_workday,
-                                    next_monday_or_tuesday, next_monday,
-                                    previous_friday, sunday_to_monday, Holiday,
-                                    DateOffset, MO, SA, Timestamp,
-                                    AbstractHolidayCalendar, get_calendar,
-                                    HolidayCalendarFactory, next_workday,
-                                    previous_workday, before_nearest_workday,
-                                    EasterMonday, GoodFriday,
-                                    after_nearest_workday, weekend_to_monday,
-                                    USLaborDay, USColumbusDay,
-                                    USMartinLutherKingJr, USPresidentsDay)
-from pytz import utc
+
+from pandas.tseries.holiday import (
+    MO, SA, AbstractHolidayCalendar, DateOffset, EasterMonday, GoodFriday,
+    Holiday, HolidayCalendarFactory, Timestamp, USColumbusDay,
+    USFederalHolidayCalendar, USLaborDay, USMartinLutherKingJr, USMemorialDay,
+    USPresidentsDay, USThanksgivingDay, after_nearest_workday,
+    before_nearest_workday, get_calendar, nearest_workday, next_monday,
+    next_monday_or_tuesday, next_workday, previous_friday, previous_workday,
+    sunday_to_monday, weekend_to_monday)
 
 
 class TestCalendar(object):
diff --git a/setup.cfg b/setup.cfg
index 010269060e2b0..8fba814188af5 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -251,14 +251,6 @@ skip=
     pandas/tests/groupby/aggregate/test_cython.py,
     pandas/tests/groupby/aggregate/test_other.py,
     pandas/tests/groupby/aggregate/test_aggregate.py,
-    pandas/tests/tseries/test_frequencies.py,
-    pandas/tests/tseries/test_holiday.py,
-    pandas/tests/tseries/offsets/test_offsets_properties.py,
-    pandas/tests/tseries/offsets/test_yqm_offsets.py,
-    pandas/tests/tseries/offsets/test_offsets.py,
-    pandas/tests/tseries/offsets/test_ticks.py,
-    pandas/tests/tseries/offsets/conftest.py,
-    pandas/tests/tseries/offsets/test_fiscal.py,
     pandas/tests/plotting/test_datetimelike.py,
     pandas/tests/plotting/test_series.py,
     pandas/tests/plotting/test_groupby.py,
@@ -304,11 +296,6 @@ skip=
     pandas/tests/frame/test_mutate_columns.py,
     pandas/tests/frame/test_alter_axes.py,
     pandas/tests/frame/test_rank.py,
-    pandas/tests/generic/test_generic.py,
-    pandas/tests/generic/test_label_or_level_utils.py,
-    pandas/tests/generic/test_series.py,
-    pandas/tests/generic/test_frame.py,
-    pandas/tests/generic/test_panel.py,
     pandas/tests/reshape/test_concat.py,
     pandas/tests/reshape/test_util.py,
     pandas/tests/reshape/test_reshape.py,
@@ -340,13 +327,6 @@ skip=
     pandas/tests/sparse/frame/conftest.py,
     pandas/tests/computation/test_compat.py,
     pandas/tests/computation/test_eval.py,
-    pandas/plotting/_core.py,
-    pandas/plotting/_style.py,
-    pandas/plotting/_timeseries.py,
-    pandas/plotting/_tools.py,
-    pandas/plotting/_converter.py,
-    pandas/plotting/_misc.py,
     pandas/types/common.py,
-    pandas/plotting/_compat.py,
     pandas/tests/extension/arrow/test_bool.py
     doc/source/conf.py