diff --git a/setup.py b/setup.py
index f46ff1be..f86fad89 100755
--- a/setup.py
+++ b/setup.py
@@ -7,8 +7,9 @@
     use_scm_version=True,
     setup_requires=['setuptools_scm'],
     description='Format agnostic tabular data library (XLS, JSON, YAML, CSV)',
-    long_description=(open('README.md').read() + '\n\n' +
-        open('HISTORY.md').read()),
+    long_description=(
+        open('README.md').read() + '\n\n' + open('HISTORY.md').read()
+    ),
     long_description_content_type="text/markdown",
     author='Kenneth Reitz',
     author_email='me@kennethreitz.org',
diff --git a/src/tablib/__init__.py b/src/tablib/__init__.py
index 1d9d5056..6e10d783 100644
--- a/src/tablib/__init__.py
+++ b/src/tablib/__init__.py
@@ -1,6 +1,6 @@
 """ Tablib. """
 from pkg_resources import DistributionNotFound, get_distribution
-from tablib.core import (
+from tablib.core import (  # noqa: F401
     Databook,
     Dataset,
     InvalidDatasetType,
diff --git a/src/tablib/core.py b/src/tablib/core.py
index ef3c26e2..73cc8e69 100644
--- a/src/tablib/core.py
+++ b/src/tablib/core.py
@@ -12,7 +12,6 @@
 from copy import copy
 from operator import itemgetter
 
-from tablib import formats
 from tablib.exceptions import (
     HeadersNeeded,
     InvalidDatasetIndex,
@@ -416,7 +415,7 @@ def load(self, in_stream, format=None, **kwargs):
         fmt = registry.get_format(format)
         if not hasattr(fmt, 'import_set'):
             raise UnsupportedFormat('Format {} cannot be imported.'.format(format))
-            
+
         if not import_set:
             raise UnsupportedFormat('Format {} cannot be imported.'.format(format))
 
diff --git a/src/tablib/formats/_ods.py b/src/tablib/formats/_ods.py
index e1bf1042..5c52b96a 100644
--- a/src/tablib/formats/_ods.py
+++ b/src/tablib/formats/_ods.py
@@ -60,7 +60,7 @@ def dset_sheet(cls, dataset, ws):
                 try:
                     col = str(col, errors='ignore')
                 except TypeError:
-                    ## col is already str
+                    # col is already str
                     pass
                 ws.addElement(table.TableColumn())
 
diff --git a/src/tablib/formats/_rst.py b/src/tablib/formats/_rst.py
index 793bce9d..6dce91f6 100644
--- a/src/tablib/formats/_rst.py
+++ b/src/tablib/formats/_rst.py
@@ -85,7 +85,6 @@ def _row_to_lines(cls, values, widths, wrapper, sep='|', justify=JUSTIFY_LEFT):
         lines = [''.join((lpad, pad.join(line), rpad)) for line in lines]
         return lines
 
-
     @classmethod
     def _get_column_widths(cls, dataset, max_table_width=MAX_TABLE_WIDTH, pad_len=3):
         """
@@ -184,7 +183,6 @@ def export_set_as_grid_table(cls, dataset, column_widths=None):
             lines.append(row_sep)
         return '\n'.join(lines)
 
-
     @classmethod
     def _use_simple_table(cls, head0, col0, width0):
         """
diff --git a/src/tablib/formats/_xls.py b/src/tablib/formats/_xls.py
index 0b13d279..7a8ec632 100644
--- a/src/tablib/formats/_xls.py
+++ b/src/tablib/formats/_xls.py
@@ -63,7 +63,6 @@ def export_book(cls, databook):
         wb.save(stream)
         return stream.getvalue()
 
-
     @classmethod
     def import_set(cls, dset, in_stream, headers=True):
         """Returns databook from XLS stream."""
diff --git a/tests/test_tablib.py b/tests/test_tablib.py
index e71105e6..b20b6693 100755
--- a/tests/test_tablib.py
+++ b/tests/test_tablib.py
@@ -169,7 +169,8 @@ def test_add_column_with_header_and_data_exists(self):
     def test_add_callable_column(self):
         """Verify adding column with values specified as callable."""
 
-        new_col = lambda x: x[0]
+        def new_col(x):
+            return x[0]
 
         self.founders.append_col(new_col, header='first_again')
 
@@ -1313,10 +1314,19 @@ def test_rst_formatter_doctests(self):
 
 class CliTests(BaseTestCase):
     def test_cli_export_github(self):
-        self.assertEqual('|---|---|---|\n| a | b | c |', tablib.Dataset(['a','b','c']).export('cli', tablefmt='github'))
+        self.assertEqual(
+            '|---|---|---|\n| a | b | c |',
+            tablib.Dataset(['a', 'b', 'c']).export('cli', tablefmt='github')
+        )
 
     def test_cli_export_simple(self):
-        self.assertEqual('-  -  -\na  b  c\n-  -  -', tablib.Dataset(['a','b','c']).export('cli', tablefmt='simple'))
+        self.assertEqual(
+            '-  -  -\na  b  c\n-  -  -',
+            tablib.Dataset(['a', 'b', 'c']).export('cli', tablefmt='simple')
+        )
 
     def test_cli_export_grid(self):
-        self.assertEqual('+---+---+---+\n| a | b | c |\n+---+---+---+', tablib.Dataset(['a','b','c']).export('cli', tablefmt='grid'))
+        self.assertEqual(
+            '+---+---+---+\n| a | b | c |\n+---+---+---+',
+            tablib.Dataset(['a', 'b', 'c']).export('cli', tablefmt='grid')
+        )