diff --git a/adafruit_led_animation/animation.py b/adafruit_led_animation/animation.py
index 24d288d..21ad0e4 100644
--- a/adafruit_led_animation/animation.py
+++ b/adafruit_led_animation/animation.py
@@ -401,7 +401,9 @@ class Pulse(Animation):
         white = len(self.pixel_object[0]) > 3 and isinstance(
             self.pixel_object[0][-1], int
         )
-        from adafruit_led_animation.helper import pulse_generator  # pylint: disable=import-outside-toplevel
+        from adafruit_led_animation.helper import (  # pylint: disable=import-outside-toplevel
+            pulse_generator,
+        )
 
         self._generator = pulse_generator(self._period, self, white)
 
diff --git a/adafruit_led_animation/rainbow.py b/adafruit_led_animation/rainbow.py
index 80f65fd..fa460fc 100644
--- a/adafruit_led_animation/rainbow.py
+++ b/adafruit_led_animation/rainbow.py
@@ -1,8 +1,6 @@
-from time import monotonic_ns
-
-from adafruit_led_animation import NANOS_PER_SECOND
 from adafruit_led_animation.animation import Animation, Chase, Comet
 from adafruit_led_animation.color import BLACK, colorwheel
+from . import NANOS_PER_SECOND, monotonic_ns
 
 
 class Rainbow(Animation):
diff --git a/adafruit_led_animation/sequence.py b/adafruit_led_animation/sequence.py
index 6971eab..3d6ff5f 100644
--- a/adafruit_led_animation/sequence.py
+++ b/adafruit_led_animation/sequence.py
@@ -1,8 +1,6 @@
 import random
-from time import monotonic_ns
-
-from adafruit_led_animation import NANOS_PER_SECOND
 from adafruit_led_animation.color import BLACK
+from . import NANOS_PER_SECOND, monotonic_ns
 
 
 class AnimationSequence:
diff --git a/adafruit_led_animation/sparkle.py b/adafruit_led_animation/sparkle.py
index d3b8be1..2fe3df5 100644
--- a/adafruit_led_animation/sparkle.py
+++ b/adafruit_led_animation/sparkle.py
@@ -1,8 +1,6 @@
 import random
-from time import monotonic_ns
-
-from adafruit_led_animation import NANOS_PER_SECOND
 from adafruit_led_animation.animation import Animation
+from . import NANOS_PER_SECOND, monotonic_ns
 
 
 class Sparkle(Animation):
diff --git a/examples/led_animation_all_animations.py b/examples/led_animation_all_animations.py
index 793993a..1d9504b 100644
--- a/examples/led_animation_all_animations.py
+++ b/examples/led_animation_all_animations.py
@@ -26,11 +26,17 @@ blink = animation.Blink(pixels, speed=0.1, color=JADE)
 comet = animation.Comet(pixels, speed=0.01, color=PURPLE, tail_length=10, bounce=True)
 chase = animation.Chase(pixels, speed=0.1, size=3, spacing=6, color=WHITE)
 pulse = animation.Pulse(pixels, speed=0.1, period=3, color=AMBER)
-sparkle = adafruit_led_animation.sparkle.Sparkle(pixels, speed=0.1, color=PURPLE, num_sparkles=10)
+sparkle = adafruit_led_animation.sparkle.Sparkle(
+    pixels, speed=0.1, color=PURPLE, num_sparkles=10
+)
 solid = animation.Solid(pixels, color=JADE)
 rainbow = adafruit_led_animation.rainbow.Rainbow(pixels, speed=0.1, period=2)
-sparkle_pulse = adafruit_led_animation.sparkle.SparklePulse(pixels, speed=0.1, period=3, color=JADE)
-rainbow_comet = adafruit_led_animation.rainbow.RainbowComet(pixels, speed=0.1, tail_length=7, bounce=True)
+sparkle_pulse = adafruit_led_animation.sparkle.SparklePulse(
+    pixels, speed=0.1, period=3, color=JADE
+)
+rainbow_comet = adafruit_led_animation.rainbow.RainbowComet(
+    pixels, speed=0.1, tail_length=7, bounce=True
+)
 rainbow_chase = adafruit_led_animation.rainbow.RainbowChase(
     pixels, speed=0.1, size=3, spacing=2, wheel_step=8
 )
diff --git a/examples/led_animation_gridmap.py b/examples/led_animation_gridmap.py
index bf949d6..0408aa6 100644
--- a/examples/led_animation_gridmap.py
+++ b/examples/led_animation_gridmap.py
@@ -39,7 +39,9 @@ rainbow_chase_v = adafruit_led_animation.rainbow.RainbowChase(
 rainbow_comet_v = adafruit_led_animation.rainbow.RainbowComet(
     pixel_wing_vertical, speed=0.1, tail_length=7, bounce=True
 )
-rainbow_v = adafruit_led_animation.rainbow.Rainbow(pixel_wing_vertical, speed=0.1, period=2)
+rainbow_v = adafruit_led_animation.rainbow.Rainbow(
+    pixel_wing_vertical, speed=0.1, period=2
+)
 rainbow_chase_h = adafruit_led_animation.rainbow.RainbowChase(
     pixel_wing_horizontal, speed=0.1, size=3, spacing=3
 )