diff --git a/adafruit_featherwing/led_segments.py b/adafruit_featherwing/led_segments.py
index d8578b8..2d11ca7 100755
--- a/adafruit_featherwing/led_segments.py
+++ b/adafruit_featherwing/led_segments.py
@@ -106,5 +106,5 @@ def brightness(self):
     @brightness.setter
     def brightness(self, brightness):
         if not 0 <= brightness <= 15:
-            raise ValueError('Brightness must be a value between 0 and 15')
+            raise ValueError("Brightness must be a value between 0 and 15")
         self._segments.brightness = brightness / 15
diff --git a/adafruit_featherwing/matrix_featherwing.py b/adafruit_featherwing/matrix_featherwing.py
index 18e632a..1c96440 100755
--- a/adafruit_featherwing/matrix_featherwing.py
+++ b/adafruit_featherwing/matrix_featherwing.py
@@ -179,5 +179,5 @@ def brightness(self):
     @brightness.setter
     def brightness(self, brightness):
         if not 0 <= brightness <= 15:
-            raise ValueError('Brightness must be a value between 0 and 15')
+            raise ValueError("Brightness must be a value between 0 and 15")
         self._matrix.brightness = brightness / 15
diff --git a/docs/conf.py b/docs/conf.py
index 79bc723..b3aa95a 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -43,18 +43,18 @@
 master_doc = "index"
 
 # General information about the project.
-project = u"Adafruit FeatherWing Library"
-copyright = u"2017 Scott Shawcroft"
-author = u"Scott Shawcroft"
+project = "Adafruit FeatherWing Library"
+copyright = "2017 Scott Shawcroft"
+author = "Scott Shawcroft"
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
 # The short X.Y version.
-version = u"1.0"
+version = "1.0"
 # The full version, including alpha/beta/rc tags.
-release = u"1.0"
+release = "1.0"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
@@ -144,7 +144,7 @@
     (
         master_doc,
         "AdafruitfeatherwingLibrary.tex",
-        u"Adafruitfeatherwing Library Documentation",
+        "Adafruitfeatherwing Library Documentation",
         author,
         "manual",
     ),
@@ -158,7 +158,7 @@
     (
         master_doc,
         "Adafruitfeatherwinglibrary",
-        u"Adafruit featherwing Library Documentation",
+        "Adafruit featherwing Library Documentation",
         [author],
         1,
     )
@@ -173,7 +173,7 @@
     (
         master_doc,
         "AdafruitfeatherwingLibrary",
-        u"Adafruit featherwing Library Documentation",
+        "Adafruit featherwing Library Documentation",
         author,
         "AdafruitfeatherwingLibrary",
         "One line description of project.",