diff --git a/examples/framerate.py b/examples/framerate.py
index ce8dbb3..fea1c0c 100644
--- a/examples/framerate.py
+++ b/examples/framerate.py
@@ -19,14 +19,13 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 import time
-import sys
 import math
 
 from PIL import Image
 from PIL import ImageDraw
 import ST7735 as ST7735
 
-SPI_SPEED_MHZ = 10 # Higher speed = higher framerate
+SPI_SPEED_MHZ = 10  # Higher speed = higher framerate
 
 # Create ST7735 LCD display class.
 disp = ST7735.ST7735(
@@ -66,4 +65,7 @@ while True:
     count += 1
     time_current = time.time() - time_start
     if count % 120 == 0:
-        print("Time: {}, Frames: {}, FPS: {}".format(time_current, count, count / time_current))
+        print("Time: {}, Frames: {}, FPS: {}".format(
+            time_current,
+            count,
+            count / time_current))
diff --git a/examples/gif.py b/examples/gif.py
index d5be2fc..df98538 100644
--- a/examples/gif.py
+++ b/examples/gif.py
@@ -58,6 +58,6 @@ while True:
         disp.display(image.resize((WIDTH, HEIGHT)))
         frame += 1
         time.sleep(0.05)
+
     except EOFError:
         frame = 0
-    
diff --git a/examples/image.py b/examples/image.py
index 84ed56c..e5fb562 100644
--- a/examples/image.py
+++ b/examples/image.py
@@ -18,7 +18,6 @@
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
-import time
 import sys
 
 from PIL import Image
diff --git a/examples/shapes.py b/examples/shapes.py
index 413a2a2..a280b70 100644
--- a/examples/shapes.py
+++ b/examples/shapes.py
@@ -50,46 +50,48 @@ img = Image.new('RGB', (WIDTH, HEIGHT), color=(255, 0, 0))
 draw = ImageDraw.Draw(img)
 
 # Draw a purple rectangle with yellow outline.
-draw.rectangle((10, 10, WIDTH-10, HEIGHT-10), outline=(255,255,0), fill=(255,0,255))
+draw.rectangle((10, 10, WIDTH - 10, HEIGHT - 10), outline=(255, 255, 0), fill=(255, 0, 255))
 
 # Draw some shapes.
 # Draw a blue ellipse with a green outline.
-draw.ellipse((10, 10, WIDTH-10, HEIGHT-10), outline=(0,255,0), fill=(0,0,255))
+draw.ellipse((10, 10, WIDTH - 10, HEIGHT - 10), outline=(0, 255, 0), fill=(0, 0, 255))
 
 # Draw a white X.
-draw.line((10, 10, WIDTH-10, HEIGHT-10), fill=(255,255,255))
-draw.line((10, HEIGHT-10, WIDTH-10, 10), fill=(255,255,255))
+draw.line((10, 10, WIDTH - 10, HEIGHT - 10), fill=(255, 255, 255))
+draw.line((10, HEIGHT - 10, WIDTH - 10, 10), fill=(255, 255, 255))
 
 # Draw a cyan triangle with a black outline.
-draw.polygon([(WIDTH/2, 10), (WIDTH-10, HEIGHT-10), (10, HEIGHT-10)], outline=(0,0,0), fill=(0,255,255))
+draw.polygon([(WIDTH / 2, 10), (WIDTH - 10, HEIGHT - 10), (10, HEIGHT - 10)], outline=(0, 0, 0), fill=(0, 255, 255))
 
 # Load default font.
 font = ImageFont.load_default()
 
 # Alternatively load a TTF font.
 # Some other nice fonts to try: http://www.dafont.com/bitmap.php
-#font = ImageFont.truetype('Minecraftia.ttf', 16)
+# font = ImageFont.truetype('Minecraftia.ttf', 16)
+
 
 # Define a function to create rotated text.  Unfortunately PIL doesn't have good
 # native support for rotated fonts, but this function can be used to make a
 # text image and rotate it so it's easy to paste in the buffer.
-def draw_rotated_text(image, text, position, angle, font, fill=(255,255,255)):
+def draw_rotated_text(image, text, position, angle, font, fill=(255, 255, 255)):
     # Get rendered font width and height.
     draw = ImageDraw.Draw(image)
     width, height = draw.textsize(text, font=font)
     # Create a new image with transparent background to store the text.
-    textimage = Image.new('RGBA', (width, height), (0,0,0,0))
+    textimage = Image.new('RGBA', (width, height), (0, 0, 0, 0))
     # Render the text.
     textdraw = ImageDraw.Draw(textimage)
-    textdraw.text((0,0), text, font=font, fill=fill)
+    textdraw.text((0, 0), text, font=font, fill=fill)
     # Rotate the text image.
     rotated = textimage.rotate(angle, expand=1)
     # Paste the text into the image, using it as a mask for transparency.
     image.paste(rotated, position, rotated)
 
+
 # Write two lines of white text on the buffer, rotated 90 degrees counter clockwise.
-draw_rotated_text(img, 'Hello World!', (0, 0), 90, font, fill=(255,255,255))
-draw_rotated_text(img, 'This is a line of text.', (10, HEIGHT-10), 0, font, fill=(255,255,255))
+draw_rotated_text(img, 'Hello World!', (0, 0), 90, font, fill=(255, 255, 255))
+draw_rotated_text(img, 'This is a line of text.', (10, HEIGHT - 10), 0, font, fill=(255, 255, 255))
 
 # Write buffer to display hardware, must be called to make things visible on the
 # display!