diff --git a/CHANGELOG.md b/CHANGELOG.md
index 77ca89574e..bbfec6130a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,7 +14,7 @@ by this anymore :tada:
 - `app.config` is now a `dict` instead of a class. You can set config variables with
   `app.config['suppress_callback_exceptions'] = True` now. The previous class-based
   syntax (e.g. `app.config.suppress_callback_exceptions`) has been maintained for
-  backwards compatability
+  backwards compatibility
 
 ## Fixed
 - 0.18.2 introduced a bug that removed the ability for dash to serve the app on
@@ -23,8 +23,8 @@ by this anymore :tada:
   These variables would be shared across apps. This issue has been fixed.
   Originally reported in https://community.plot.ly/t/flask-endpoint-error/5691/7
 - The config setting `supress_callback_exceptions` has been renamed to
-  `suppress_callback_exceptions`. Previouslly, `suppress` was spelled wrong.
-  The original config variable is kept for backwards compatability.
+  `suppress_callback_exceptions`. Previously, `suppress` was spelled wrong.
+  The original config variable is kept for backwards compatibility.
 
 # 0.18.3rc1 - 2017-09-08
 The prerelease for 0.18.3
@@ -54,7 +54,7 @@ The prerelease for 0.18.3
 
 ##🔧 Maintenance
 - 📝  Update README.md
-- ✅  Fix CircleCI tests. Note that the the [`dash-renderer`](https://github.com/plotly/dash-renderer) contains the bulk of the integration tests.
+- ✅  Fix CircleCI tests. Note that the [`dash-renderer`](https://github.com/plotly/dash-renderer) contains the bulk of the integration tests.
 - 💄 Flake8 fixes and tests (fixes #99 )
 - ✨ Added this CHANGELOG.md
 
diff --git a/dash/_utils.py b/dash/_utils.py
index 5a6aa58aec..340abd6c79 100644
--- a/dash/_utils.py
+++ b/dash/_utils.py
@@ -1,6 +1,7 @@
 class AttributeDict(dict):
     """
     Dictionary subclass enabling attribute lookup/assignment of keys/values.
+
     For example::
         >>> m = AttributeDict({'foo': 'bar'})
         >>> m.foo
diff --git a/dash/development/base_component.py b/dash/development/base_component.py
index a81a4feb6b..6f4aff9a34 100644
--- a/dash/development/base_component.py
+++ b/dash/development/base_component.py
@@ -237,7 +237,7 @@ def __repr__(self):
         parse_events(props),
         description
     )
-    events = "[" + ', '.join(parse_events(props)) + "]"
+    events = '[' + ', '.join(parse_events(props)) + ']'
     if 'children' in props:
         default_argtext = 'children=None, **kwargs'
         argtext = 'children=children, **kwargs'
diff --git a/tests/test_react.py b/tests/test_react.py
index c30c059784..dd7377d25f 100644
--- a/tests/test_react.py
+++ b/tests/test_react.py
@@ -38,7 +38,7 @@ def setUp(self):
 
         self.maxDiff = 100*1000
 
-    @unittest.skip("")
+    @unittest.skip('')
     def test_route_list(self):
         urls = [rule.rule for rule in self.app.server.url_map.iter_rules()]
 
@@ -54,7 +54,7 @@ def test_route_list(self):
             ])
         )
 
-    @unittest.skip("")
+    @unittest.skip('')
     def test_initialize_route(self):
         response = self.client.get('/initialize')
         self.assertEqual(response.status_code, 200)
@@ -65,7 +65,7 @@ def test_initialize_route(self):
             )
         )
 
-    @unittest.skip("")
+    @unittest.skip('')
     def test_dependencies_route(self):
         self.app.callback('header', ['id1'])
         response = self.client.get('/dependencies')
@@ -119,12 +119,12 @@ def test_dependencies_route(self):
             }
         )
 
-    @unittest.skip("")
+    @unittest.skip('')
     def test_index_html(self):
         response = self.client.get('/')
         self.assertEqual(response.status_code, 200)
 
-    @unittest.skip("")
+    @unittest.skip('')
     def test_single_observer_returning_a_dict(self):
         @self.app.callback('header', ['id1'])
         def update_header(input1):
@@ -174,7 +174,7 @@ def update_header(input1):
             }
         )
 
-    @unittest.skip("")
+    @unittest.skip('')
     def test_single_observer_returning_a_component(self):
         @self.app.callback('header', ['id1'])
         def update_header(input1):
@@ -222,7 +222,7 @@ def update_header(input1):
             }
         )
 
-    @unittest.skip("")
+    @unittest.skip('')
     def test_single_observer_updating_component_that_doesnt_exist(self):
         # It's possible to register callbacks for components that don't
         # exist in the initial layout because users could add them as
@@ -271,7 +271,7 @@ def update_header(input1):
             }
         )
 
-    @unittest.skip("")
+    @unittest.skip('')
     def test_single_observer_with_multiple_controllers(self):
         @self.app.callback('header', ['id1', 'id2'])
         def update_header(input1, input2):
diff --git a/tests/test_resources.py b/tests/test_resources.py
index 002b30ecc2..a25553abe5 100644
--- a/tests/test_resources.py
+++ b/tests/test_resources.py
@@ -134,14 +134,14 @@ def resource_test(self, css_or_js):
 
         resources.config.serve_locally = True
         with warnings.catch_warnings(record=True) as w:
-            warnings.simplefilter("always")
+            warnings.simplefilter('always')
             if css_or_js == 'css':
                 self.assertEqual(
                     resources.get_all_css(),
                     expected_filtered_relative_resources
                 )
                 assert len(w) == 1
-                assert "A local version of {} is not available".format(
+                assert 'A local version of {} is not available'.format(
                     extra_resource['external_url']
                 ) in str(w[-1].message)
 
@@ -151,7 +151,7 @@ def resource_test(self, css_or_js):
                     expected_filtered_relative_resources
                 )
                 assert len(w) == 1
-                assert "A local version of {} is not available".format(
+                assert 'A local version of {} is not available'.format(
                     extra_resource['external_url']
                 ) in str(w[-1].message)