From 1c368a195dbbba68a398b93152bef1e638d141f2 Mon Sep 17 00:00:00 2001
From: Tom Burrows <tomburrows13@btinternet.com>
Date: Sat, 22 Feb 2020 16:49:48 +0000
Subject: [PATCH] Clean up imports with isort (#1084)

Ran `isort --recursive moviepy tests examples`
---
 examples/dancing_knights.py                     |  8 ++++----
 examples/example_with_sound.py                  |  1 -
 examples/headblur.py                            |  1 -
 examples/logo.py                                |  4 ++--
 examples/moving_letters.py                      |  2 +-
 examples/soundtrack.py                          |  2 --
 examples/star_worms.py                          |  5 ++---
 moviepy/Clip.py                                 | 15 ++++++---------
 moviepy/audio/AudioClip.py                      |  7 ++++---
 moviepy/audio/__init__.py                       |  1 -
 moviepy/audio/fx/all/__init__.py                |  3 ++-
 moviepy/audio/fx/audio_fadein.py                |  4 +++-
 moviepy/audio/fx/audio_fadeout.py               |  4 +++-
 moviepy/audio/fx/audio_left_right.py            |  2 +-
 moviepy/audio/fx/audio_loop.py                  |  2 +-
 moviepy/audio/fx/audio_normalize.py             |  2 ++
 moviepy/audio/fx/volumex.py                     |  1 -
 moviepy/audio/io/AudioFileClip.py               |  1 -
 moviepy/audio/io/ffmpeg_audiowriter.py          |  4 ++--
 moviepy/audio/io/preview.py                     |  4 ++--
 moviepy/audio/io/readers.py                     |  7 ++++---
 moviepy/audio/tools/cuts.py                     |  4 +++-
 moviepy/compat.py                               |  1 +
 moviepy/config.py                               |  3 ++-
 moviepy/decorators.py                           |  2 +-
 moviepy/tools.py                                |  5 +++--
 moviepy/utils.py                                |  3 ++-
 moviepy/video/VideoClip.py                      |  2 +-
 moviepy/video/__init__.py                       |  1 -
 moviepy/video/compositing/CompositeVideoClip.py |  5 ++---
 moviepy/video/compositing/__init__.py           |  1 -
 moviepy/video/compositing/concatenate.py        | 11 ++++++-----
 moviepy/video/compositing/on_color.py           |  3 ++-
 moviepy/video/compositing/transitions.py        |  5 +++--
 moviepy/video/fx/accel_decel.py                 |  2 +-
 moviepy/video/fx/all/__init__.py                |  3 ++-
 moviepy/video/fx/blackwhite.py                  |  1 +
 moviepy/video/fx/blink.py                       |  1 +
 moviepy/video/fx/colorx.py                      |  1 +
 moviepy/video/fx/even_size.py                   |  3 +--
 moviepy/video/fx/fadein.py                      |  5 +++--
 moviepy/video/fx/fadeout.py                     |  8 +++-----
 moviepy/video/fx/freeze.py                      |  5 +++--
 moviepy/video/fx/freeze_region.py               |  3 ++-
 moviepy/video/fx/headblur.py                    |  1 -
 moviepy/video/fx/loop.py                        |  4 +---
 moviepy/video/fx/make_loopable.py               |  1 +
 moviepy/video/fx/margin.py                      |  3 +--
 moviepy/video/fx/mask_and.py                    |  4 +++-
 moviepy/video/fx/mask_color.py                  |  3 ++-
 moviepy/video/fx/mask_or.py                     |  4 +++-
 moviepy/video/fx/painting.py                    |  2 +-
 moviepy/video/fx/resize.py                      |  2 +-
 moviepy/video/fx/rotate.py                      |  6 ++++--
 moviepy/video/fx/speedx.py                      |  2 +-
 moviepy/video/fx/supersample.py                 |  5 +++--
 moviepy/video/fx/time_mirror.py                 |  3 +--
 moviepy/video/fx/time_symmetrize.py             |  5 +++--
 moviepy/video/io/ImageSequenceClip.py           |  3 ++-
 moviepy/video/io/VideoFileClip.py               |  2 +-
 moviepy/video/io/bindings.py                    |  3 +--
 moviepy/video/io/ffmpeg_reader.py               | 15 +++++++++------
 moviepy/video/io/ffmpeg_tools.py                |  7 +++----
 moviepy/video/io/ffmpeg_writer.py               |  6 ++++--
 moviepy/video/io/gif_writers.py                 |  9 +++++----
 moviepy/video/io/html_tools.py                  |  7 ++++---
 moviepy/video/io/preview.py                     |  6 +++---
 moviepy/video/io/sliders.py                     |  3 ++-
 moviepy/video/tools/credits.py                  |  2 +-
 moviepy/video/tools/cuts.py                     |  5 ++++-
 moviepy/video/tools/drawing.py                  |  1 +
 moviepy/video/tools/interpolators.py            |  1 +
 moviepy/video/tools/segmenting.py               |  1 +
 moviepy/video/tools/subtitles.py                |  6 ++++--
 moviepy/video/tools/tracking.py                 |  4 ++--
 tests/test_AudioClips.py                        |  6 ++++--
 tests/test_ImageSequenceClip.py                 |  2 ++
 tests/test_PR.py                                |  8 +++++---
 tests/test_TextClip.py                          |  2 ++
 tests/test_VideoClip.py                         | 11 ++++++-----
 tests/test_VideoFileClip.py                     |  6 ++++--
 tests/test_Videos.py                            |  2 ++
 tests/test_compositing.py                       |  5 ++++-
 tests/test_ffmpeg_reader.py                     |  2 ++
 tests/test_fx.py                                |  6 ++++--
 tests/test_helper.py                            |  1 -
 tests/test_issues.py                            |  5 +++--
 tests/test_misc.py                              |  8 +++++---
 tests/test_resourcerelease.py                   | 11 ++++++-----
 tests/test_resourcereleasedemo.py               | 12 +++++++-----
 tests/test_tools.py                             |  3 ++-
 tests/test_videotools.py                        |  3 ++-
 92 files changed, 216 insertions(+), 161 deletions(-)

diff --git a/examples/dancing_knights.py b/examples/dancing_knights.py
index 3a081a75d..913057b47 100644
--- a/examples/dancing_knights.py
+++ b/examples/dancing_knights.py
@@ -21,10 +21,11 @@
 easy to preview and fine-tune each part of the editing.
 """
 
+import os
+
+from moviepy.audio.tools.cuts import find_audio_period
 from moviepy.editor import *
 from moviepy.video.tools.cuts import find_video_period
-from moviepy.audio.tools.cuts import find_audio_period
-
 
 # Next lines are for downloading the required videos from Youtube.
 # To do this you must have youtube-dl installed, otherwise you will need to
@@ -32,7 +33,6 @@
 #     https://www.youtube.com/watch?v=zvCvOC2VwDc => knights.mp4
 #     https://www.youtube.com/watch?v=lkY3Ek9VPtg => frontier.mp4
 
-import os
 if not os.path.exists("knights.mp4"):
     os.system("youtube-dl zvCvOC2VwDc -o knights.mp4")
     os.system("youtube-dl lkY3Ek9VPtg -o frontier.mp4")
@@ -116,4 +116,4 @@
 final = concatenate_videoclips([title, dancing_knights, credits])
 
 final.write_videofile("dancing_knights.mp4", fps=clip.fps,
-                      audio_bitrate="1000k", bitrate="4000k")
\ No newline at end of file
+                      audio_bitrate="1000k", bitrate="4000k")
diff --git a/examples/example_with_sound.py b/examples/example_with_sound.py
index 38cd4cf4c..85b4f8f10 100644
--- a/examples/example_with_sound.py
+++ b/examples/example_with_sound.py
@@ -8,7 +8,6 @@
 from moviepy.editor import *
 from moviepy.video.tools.drawing import color_split
 
-
 duration = 6 # duration of the final clip
 
 # LOAD THE MAIN SCENE
diff --git a/examples/headblur.py b/examples/headblur.py
index 5d55f04bc..b7f993204 100644
--- a/examples/headblur.py
+++ b/examples/headblur.py
@@ -3,7 +3,6 @@
 from moviepy.editor import *
 from moviepy.video.tools.tracking import manual_tracking, to_fxfy
 
-
 # LOAD THE CLIP (subclip 6'51 - 7'01 of a chaplin movie)
 clip = VideoFileClip("../../videos/chaplin.mp4").subclip((6,51.7),(7,01.3))
 
diff --git a/examples/logo.py b/examples/logo.py
index d76a0bf72..439939001 100644
--- a/examples/logo.py
+++ b/examples/logo.py
@@ -1,7 +1,7 @@
-from moviepy.editor import *
-
 import numpy as np
 
+from moviepy.editor import *
+
 w,h = moviesize = (720,380)
 
 duration = 1
diff --git a/examples/moving_letters.py b/examples/moving_letters.py
index 61034e444..6b1dae27d 100644
--- a/examples/moving_letters.py
+++ b/examples/moving_letters.py
@@ -1,4 +1,5 @@
 import numpy as np
+
 from moviepy.editor import *
 from moviepy.video.tools.segmenting import findObjects
 
@@ -62,4 +63,3 @@ def moveLetters(letters, funcpos):
 
 final_clip = concatenate_videoclips(clips)
 final_clip.write_videofile('../../coolTextEffects.avi',fps=25,codec='mpeg4')
-
diff --git a/examples/soundtrack.py b/examples/soundtrack.py
index 1def1c2e9..38c20b209 100644
--- a/examples/soundtrack.py
+++ b/examples/soundtrack.py
@@ -1,7 +1,6 @@
 """ A simple test script on how to put a soundtrack to a movie """
 from moviepy.editor import *
 
-
 # We load a movie and replace the sound with some music:
 
 movie = VideoFileClip("../../videos/dam.mov").\
@@ -15,4 +14,3 @@
 #~ movie.audio = movie.audio.set_duration(movie.duration)
 
 movie.write_videofile("../../test_soundtrack.avi", codec="mpeg4")
-
diff --git a/examples/star_worms.py b/examples/star_worms.py
index 5e2ebb2b4..97ccf0d84 100644
--- a/examples/star_worms.py
+++ b/examples/star_worms.py
@@ -7,11 +7,10 @@
 """
 
 import numpy as np
-from skimage import transform as tf
 
 from moviepy.editor import *
 from moviepy.video.tools.drawing import color_gradient
-
+from skimage import transform as tf
 
 # RESOLUTION
 
@@ -176,4 +175,4 @@ def composeCenter(clip):
 
 # Concatenate and write to a file
 
-concatenate_videoclips(annotated_clips).write_videofile('tutorial.avi', fps=5)
\ No newline at end of file
+concatenate_videoclips(annotated_clips).write_videofile('tutorial.avi', fps=5)
diff --git a/moviepy/Clip.py b/moviepy/Clip.py
index 007e6c3a6..315024b4d 100644
--- a/moviepy/Clip.py
+++ b/moviepy/Clip.py
@@ -5,16 +5,14 @@
 """
 
 from copy import copy
-import numpy as np
 
-from moviepy.decorators import (apply_to_mask,
-                                apply_to_audio,
-                                requires_duration,
-                                outplace,
-                                convert_to_seconds,
-                                use_clip_fps_by_default)
-from tqdm import tqdm
+import numpy as np
 import proglog
+from tqdm import tqdm
+
+from moviepy.decorators import (apply_to_audio, apply_to_mask,
+                                convert_to_seconds, outplace,
+                                requires_duration, use_clip_fps_by_default)
 
 
 class Clip:
@@ -502,4 +500,3 @@ def __enter__(self):
 
     def __exit__(self, exc_type, exc_value, traceback):
         self.close()
-
diff --git a/moviepy/audio/AudioClip.py b/moviepy/audio/AudioClip.py
index 85724071b..8fd7b9f6f 100644
--- a/moviepy/audio/AudioClip.py
+++ b/moviepy/audio/AudioClip.py
@@ -1,13 +1,14 @@
 import os
+
 import numpy as np
 import proglog
+from tqdm import tqdm
+
 from moviepy.audio.io.ffmpeg_audiowriter import ffmpeg_audiowrite
+from moviepy.Clip import Clip
 from moviepy.decorators import requires_duration
 from moviepy.tools import deprecated_version_of, extensions_dict
 
-from moviepy.Clip import Clip
-from tqdm import tqdm
-
 
 class AudioClip(Clip):
     """ Base class for audio clips.
diff --git a/moviepy/audio/__init__.py b/moviepy/audio/__init__.py
index 8b1378917..e69de29bb 100644
--- a/moviepy/audio/__init__.py
+++ b/moviepy/audio/__init__.py
@@ -1 +0,0 @@
-
diff --git a/moviepy/audio/fx/all/__init__.py b/moviepy/audio/fx/all/__init__.py
index c56917636..11258d7f0 100644
--- a/moviepy/audio/fx/all/__init__.py
+++ b/moviepy/audio/fx/all/__init__.py
@@ -6,10 +6,11 @@
 """
 
 import pkgutil
+
 import moviepy.audio.fx as fx
 
 __all__ = [name for _, name, _ in pkgutil.iter_modules(
     fx.__path__) if name != "all"]
 
 for name in __all__:
-    exec("from ..%s import %s" % (name, name))
\ No newline at end of file
+    exec("from ..%s import %s" % (name, name))
diff --git a/moviepy/audio/fx/audio_fadein.py b/moviepy/audio/fx/audio_fadein.py
index 39032c351..20b1eed00 100644
--- a/moviepy/audio/fx/audio_fadein.py
+++ b/moviepy/audio/fx/audio_fadein.py
@@ -1,6 +1,8 @@
-from moviepy.decorators import audio_video_fx
 import numpy as np
 
+from moviepy.decorators import audio_video_fx
+
+
 @audio_video_fx
 def audio_fadein(clip, duration):
     """ Return an audio (or video) clip that is first mute, then the
diff --git a/moviepy/audio/fx/audio_fadeout.py b/moviepy/audio/fx/audio_fadeout.py
index 4e80c954c..ab6f40ee5 100644
--- a/moviepy/audio/fx/audio_fadeout.py
+++ b/moviepy/audio/fx/audio_fadeout.py
@@ -1,6 +1,8 @@
-from moviepy.decorators import audio_video_fx, requires_duration
 import numpy as np
 
+from moviepy.decorators import audio_video_fx, requires_duration
+
+
 @audio_video_fx
 @requires_duration
 def audio_fadeout(clip, duration):
diff --git a/moviepy/audio/fx/audio_left_right.py b/moviepy/audio/fx/audio_left_right.py
index dfa592f5d..c98abcc0c 100644
--- a/moviepy/audio/fx/audio_left_right.py
+++ b/moviepy/audio/fx/audio_left_right.py
@@ -1,5 +1,6 @@
 import numpy as np
 
+
 def audio_left_right(audioclip, left=1, right=1, merge=False):
     """
     NOT YET FINISHED 
@@ -12,4 +13,3 @@ def audio_left_right(audioclip, left=1, right=1, merge=False):
     """
     funleft = (lambda t: left) if np.isscalar(left) else left
     funright = (lambda t: right) if np.isscalar(right) else right
-    
diff --git a/moviepy/audio/fx/audio_loop.py b/moviepy/audio/fx/audio_loop.py
index 43c967f8e..7e309b7ff 100644
--- a/moviepy/audio/fx/audio_loop.py
+++ b/moviepy/audio/fx/audio_loop.py
@@ -1,5 +1,6 @@
 from ..AudioClip import concatenate_audioclips
 
+
 def audio_loop(audioclip, nloops=None, duration=None):
     """ Loops over an audio clip.
 
@@ -25,4 +26,3 @@ def audio_loop(audioclip, nloops=None, duration=None):
     else:
 
         return concatenate_audioclips(nloops*[audioclip])
-    
diff --git a/moviepy/audio/fx/audio_normalize.py b/moviepy/audio/fx/audio_normalize.py
index 129daa6a9..34c5ff29d 100644
--- a/moviepy/audio/fx/audio_normalize.py
+++ b/moviepy/audio/fx/audio_normalize.py
@@ -1,6 +1,8 @@
 from moviepy.decorators import audio_video_fx
+
 from .volumex import volumex
 
+
 @audio_video_fx
 def audio_normalize(clip):
     """ Return an audio (or video) clip whose volume is normalized
diff --git a/moviepy/audio/fx/volumex.py b/moviepy/audio/fx/volumex.py
index 400da4046..6ec84ad5c 100644
--- a/moviepy/audio/fx/volumex.py
+++ b/moviepy/audio/fx/volumex.py
@@ -18,4 +18,3 @@ def volumex(clip, factor):
     """
     return clip.fl(lambda gf, t: factor * gf(t),
                    keep_duration=True)
-
diff --git a/moviepy/audio/io/AudioFileClip.py b/moviepy/audio/io/AudioFileClip.py
index 8ab3ad81b..e93dbb04c 100644
--- a/moviepy/audio/io/AudioFileClip.py
+++ b/moviepy/audio/io/AudioFileClip.py
@@ -1,6 +1,5 @@
 from __future__ import division
 
-
 from moviepy.audio.AudioClip import AudioClip
 from moviepy.audio.io.readers import FFMPEG_AudioReader
 
diff --git a/moviepy/audio/io/ffmpeg_audiowriter.py b/moviepy/audio/io/ffmpeg_audiowriter.py
index 7e1538f1c..d02649f52 100644
--- a/moviepy/audio/io/ffmpeg_audiowriter.py
+++ b/moviepy/audio/io/ffmpeg_audiowriter.py
@@ -1,9 +1,9 @@
-import subprocess as sp
 import os
+import subprocess as sp
+
 import proglog
 
 from moviepy.compat import DEVNULL
-
 from moviepy.config import get_setting
 from moviepy.decorators import requires_duration
 
diff --git a/moviepy/audio/io/preview.py b/moviepy/audio/io/preview.py
index 26c3e3ae8..e321b2978 100644
--- a/moviepy/audio/io/preview.py
+++ b/moviepy/audio/io/preview.py
@@ -1,9 +1,9 @@
 import time
-import numpy as np
 
-from moviepy.decorators import requires_duration
+import numpy as np
 
 import pygame as pg
+from moviepy.decorators import requires_duration
 
 pg.init()
 pg.display.set_caption('MoviePy')
diff --git a/moviepy/audio/io/readers.py b/moviepy/audio/io/readers.py
index 6225356c1..cfecc826b 100644
--- a/moviepy/audio/io/readers.py
+++ b/moviepy/audio/io/readers.py
@@ -1,11 +1,12 @@
+import os
 import subprocess as sp
 import warnings
 
 import numpy as np
-from moviepy.video.io.ffmpeg_reader import ffmpeg_parse_infos
+
+from moviepy.compat import DEVNULL, PY3
 from moviepy.config import get_setting
-from moviepy.compat import PY3, DEVNULL
-import os
+from moviepy.video.io.ffmpeg_reader import ffmpeg_parse_infos
 
 
 class FFMPEG_AudioReader:
diff --git a/moviepy/audio/tools/cuts.py b/moviepy/audio/tools/cuts.py
index eddd07779..3adedbb48 100644
--- a/moviepy/audio/tools/cuts.py
+++ b/moviepy/audio/tools/cuts.py
@@ -1,5 +1,7 @@
 
 import numpy as np
+
+
 def find_audio_period(aclip, t_min=.1, t_max=2, t_res=.01):
     """ Finds the period, in seconds of an audioclip.
     
@@ -17,4 +19,4 @@ def find_audio_period(aclip, t_min=.1, t_max=2, t_res=.01):
     corrs = np.correlate(v, v, mode = 'full')[-len(v):]
     corrs[:int(t_min/chunk_duration)]=0
     corrs[int(t_max/chunk_duration):]=0
-    return chunk_duration*np.argmax(corrs)
\ No newline at end of file
+    return chunk_duration*np.argmax(corrs)
diff --git a/moviepy/compat.py b/moviepy/compat.py
index 0404e57f6..e97b11bb7 100644
--- a/moviepy/compat.py
+++ b/moviepy/compat.py
@@ -1,5 +1,6 @@
 import os
 import sys
+
 PY3=sys.version_info.major >= 3
 
 try:
diff --git a/moviepy/config.py b/moviepy/config.py
index 0f1741031..b1ce2f856 100644
--- a/moviepy/config.py
+++ b/moviepy/config.py
@@ -1,6 +1,8 @@
 import os
 import subprocess as sp
+
 from .compat import DEVNULL
+from .config_defaults import FFMPEG_BINARY, IMAGEMAGICK_BINARY
 
 if os.name == 'nt':
     try:
@@ -8,7 +10,6 @@
     except ImportError:
         import _winreg as wr # py2k
 
-from .config_defaults import (FFMPEG_BINARY, IMAGEMAGICK_BINARY)
 
 def try_cmd(cmd):
     try:
diff --git a/moviepy/decorators.py b/moviepy/decorators.py
index e73756a21..44f346eb1 100644
--- a/moviepy/decorators.py
+++ b/moviepy/decorators.py
@@ -3,8 +3,8 @@
 """
 
 import decorator
-from moviepy.tools import cvsecs
 
+from moviepy.tools import cvsecs
 
 
 @decorator.decorator
diff --git a/moviepy/tools.py b/moviepy/tools.py
index a9c469350..e5e6b9cfb 100644
--- a/moviepy/tools.py
+++ b/moviepy/tools.py
@@ -2,13 +2,14 @@
 Misc. useful functions that can be used at many places in the program.
 """
 
+import os
+import re
 import subprocess as sp
 import sys
 import warnings
-import re
+
 import proglog
 
-import os
 from .compat import DEVNULL
 
 
diff --git a/moviepy/utils.py b/moviepy/utils.py
index 320ce270c..5979ccbc2 100644
--- a/moviepy/utils.py
+++ b/moviepy/utils.py
@@ -1,7 +1,8 @@
-from moviepy.video.io.VideoFileClip import VideoFileClip
 from moviepy.audio.io.AudioFileClip import AudioFileClip
+from moviepy.video.io.VideoFileClip import VideoFileClip
 from moviepy.video.VideoClip import ImageClip
 
+
 def close_all_clips(objects='globals', types=('audio', 'video', 'image')):
     if objects == 'globals':
         objects = globals()
diff --git a/moviepy/video/VideoClip.py b/moviepy/video/VideoClip.py
index c50247123..6f535bf25 100644
--- a/moviepy/video/VideoClip.py
+++ b/moviepy/video/VideoClip.py
@@ -10,8 +10,8 @@
 import warnings
 
 import numpy as np
-from imageio import imread, imsave
 import proglog
+from imageio import imread, imsave
 
 from ..Clip import Clip
 from ..compat import DEVNULL, string_types
diff --git a/moviepy/video/__init__.py b/moviepy/video/__init__.py
index 8b1378917..e69de29bb 100644
--- a/moviepy/video/__init__.py
+++ b/moviepy/video/__init__.py
@@ -1 +0,0 @@
-
diff --git a/moviepy/video/compositing/CompositeVideoClip.py b/moviepy/video/compositing/CompositeVideoClip.py
index 65e1735fa..284648c88 100644
--- a/moviepy/video/compositing/CompositeVideoClip.py
+++ b/moviepy/video/compositing/CompositeVideoClip.py
@@ -1,6 +1,7 @@
 import numpy as np
-from moviepy.video.VideoClip import VideoClip, ColorClip
+
 from moviepy.audio.AudioClip import CompositeAudioClip
+from moviepy.video.VideoClip import ColorClip, VideoClip
 
 #  CompositeVideoClip
 
@@ -184,5 +185,3 @@ def clips_array(array, rows_widths=None, cols_widths=None,
                  
     return CompositeVideoClip(array.flatten(), size = (xx[-1],yy[-1]),
                               bg_color = bg_color)
-    
-    
diff --git a/moviepy/video/compositing/__init__.py b/moviepy/video/compositing/__init__.py
index 8b1378917..e69de29bb 100644
--- a/moviepy/video/compositing/__init__.py
+++ b/moviepy/video/compositing/__init__.py
@@ -1 +0,0 @@
-
diff --git a/moviepy/video/compositing/concatenate.py b/moviepy/video/compositing/concatenate.py
index 3097dcb4d..f7882089e 100644
--- a/moviepy/video/compositing/concatenate.py
+++ b/moviepy/video/compositing/concatenate.py
@@ -1,16 +1,17 @@
 import numpy as np
 
+from moviepy.audio.AudioClip import CompositeAudioClip
+from moviepy.tools import deprecated_version_of
+from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
+from moviepy.video.compositing.on_color import on_color
+from moviepy.video.VideoClip import ColorClip, VideoClip
+
 try:               # Python 2
    reduce
 except NameError:  # Python 3
    from functools import reduce
 
-from moviepy.tools import deprecated_version_of
-from moviepy.video.VideoClip import VideoClip, ColorClip
-from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
-from moviepy.audio.AudioClip import CompositeAudioClip
 
-from moviepy.video.compositing.on_color import on_color
 
 def concatenate_videoclips(clips, method="chain", transition=None,
                            bg_color=None, ismask=False, padding = 0):
diff --git a/moviepy/video/compositing/on_color.py b/moviepy/video/compositing/on_color.py
index ed664535c..c5fcb147b 100644
--- a/moviepy/video/compositing/on_color.py
+++ b/moviepy/video/compositing/on_color.py
@@ -1,5 +1,6 @@
-from moviepy.video.VideoClip import ColorClip
 from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
+from moviepy.video.VideoClip import ColorClip
+
 
 def on_color(clip, size=None, color=(0, 0, 0), pos=None, col_opacity=None):
     """ 
diff --git a/moviepy/video/compositing/transitions.py b/moviepy/video/compositing/transitions.py
index cf0a7ffaf..ab2920b23 100644
--- a/moviepy/video/compositing/transitions.py
+++ b/moviepy/video/compositing/transitions.py
@@ -4,11 +4,12 @@
 if you load them with ``from moviepy.editor import *``
 """
 
-from moviepy.decorators import requires_duration, add_mask_if_none
-from .CompositeVideoClip import CompositeVideoClip
+from moviepy.decorators import add_mask_if_none, requires_duration
 from moviepy.video.fx.fadein import fadein
 from moviepy.video.fx.fadeout import fadeout
 
+from .CompositeVideoClip import CompositeVideoClip
+
 
 @requires_duration
 @add_mask_if_none
diff --git a/moviepy/video/fx/accel_decel.py b/moviepy/video/fx/accel_decel.py
index a7c413caf..6fbb4cca5 100644
--- a/moviepy/video/fx/accel_decel.py
+++ b/moviepy/video/fx/accel_decel.py
@@ -41,4 +41,4 @@ def accel_decel(clip, new_duration=None, abruptness=1.0, soonness=1.0):
     fl = lambda t : f_accel_decel(t, clip.duration, new_duration,
                                    abruptness, soonness)
 
-    return clip.fl_time(fl).set_duration(new_duration)
\ No newline at end of file
+    return clip.fl_time(fl).set_duration(new_duration)
diff --git a/moviepy/video/fx/all/__init__.py b/moviepy/video/fx/all/__init__.py
index a74fb9c8a..a9a4c4e4e 100644
--- a/moviepy/video/fx/all/__init__.py
+++ b/moviepy/video/fx/all/__init__.py
@@ -7,10 +7,11 @@
 """
 
 import pkgutil
+
 import moviepy.video.fx as fx
 
 __all__ = [name for _, name, _ in pkgutil.iter_modules(
     fx.__path__) if name != "all"]
 
 for name in __all__:
-    exec("from ..%s import %s" % (name, name))
\ No newline at end of file
+    exec("from ..%s import %s" % (name, name))
diff --git a/moviepy/video/fx/blackwhite.py b/moviepy/video/fx/blackwhite.py
index 140c649c6..b6b95a887 100644
--- a/moviepy/video/fx/blackwhite.py
+++ b/moviepy/video/fx/blackwhite.py
@@ -1,5 +1,6 @@
 import numpy as np
 
+
 def blackwhite(clip, RGB = None, preserve_luminosity=True):
     """ Desaturates the picture, makes it black and white.
     Parameter RGB allows to set weights for the different color
diff --git a/moviepy/video/fx/blink.py b/moviepy/video/fx/blink.py
index 93e022b17..c8a962404 100644
--- a/moviepy/video/fx/blink.py
+++ b/moviepy/video/fx/blink.py
@@ -1,5 +1,6 @@
 import copy
 
+
 def blink(clip, d_on, d_off):
     """
     Makes the clip blink. At each blink it will be displayed ``d_on``
diff --git a/moviepy/video/fx/colorx.py b/moviepy/video/fx/colorx.py
index 4d6adb4fd..70f16d699 100644
--- a/moviepy/video/fx/colorx.py
+++ b/moviepy/video/fx/colorx.py
@@ -1,5 +1,6 @@
 import numpy as np
 
+
 def colorx(clip, factor):
     """ multiplies the clip's colors by the given factor, can be used
         to decrease or increase the clip's brightness (is that the
diff --git a/moviepy/video/fx/even_size.py b/moviepy/video/fx/even_size.py
index adeb636e7..04189a4c5 100644
--- a/moviepy/video/fx/even_size.py
+++ b/moviepy/video/fx/even_size.py
@@ -2,6 +2,7 @@
 
 from moviepy.decorators import apply_to_mask
 
+
 @apply_to_mask
 def even_size(clip):
     """ Crops the clip to make dimensions even.
@@ -21,5 +22,3 @@ def even_size(clip):
         fl_image = lambda a : a[:-1,:,:]
 
     return clip.fl_image(fl_image)
-
-
diff --git a/moviepy/video/fx/fadein.py b/moviepy/video/fx/fadein.py
index bfd270a85..c9fda9254 100644
--- a/moviepy/video/fx/fadein.py
+++ b/moviepy/video/fx/fadein.py
@@ -1,4 +1,5 @@
-import numpy as np                                                        
+import numpy as np
+
 
 def fadein(clip, duration, initial_color=None):
     """
@@ -21,4 +22,4 @@ def fl(gf, t):
             fading = (1.0*t/duration) 
             return fading*gf(t) + (1-fading)*initial_color
 
-    return clip.fl(fl)
\ No newline at end of file
+    return clip.fl(fl)
diff --git a/moviepy/video/fx/fadeout.py b/moviepy/video/fx/fadeout.py
index 68f31dda1..66c7230a8 100644
--- a/moviepy/video/fx/fadeout.py
+++ b/moviepy/video/fx/fadeout.py
@@ -1,6 +1,8 @@
-from moviepy.decorators import requires_duration
 import numpy as np
 
+from moviepy.decorators import requires_duration
+
+
 @requires_duration
 def fadeout(clip, duration, final_color=None):
     """
@@ -24,7 +26,3 @@ def fl(gf, t):
             return fading*gf(t) + (1-fading)*final_color
 
     return clip.fl(fl)
-
-    
-
-                     
diff --git a/moviepy/video/fx/freeze.py b/moviepy/video/fx/freeze.py
index 2a0dfea74..fab0549ba 100644
--- a/moviepy/video/fx/freeze.py
+++ b/moviepy/video/fx/freeze.py
@@ -1,6 +1,7 @@
 from moviepy.decorators import requires_duration
-from moviepy.video.VideoClip import ImageClip
 from moviepy.video.compositing.concatenate import concatenate_videoclips
+from moviepy.video.VideoClip import ImageClip
+
 
 @requires_duration
 def freeze(clip, t=0, freeze_duration=None, total_duration=None,
@@ -24,4 +25,4 @@ def freeze(clip, t=0, freeze_duration=None, total_duration=None,
     before = [clip.subclip(0,t)] if (t!=0) else []
     freeze = [clip.to_ImageClip(t).set_duration(freeze_duration)]
     after = [clip.subclip(t)] if (t !=clip.duration) else []
-    return concatenate_videoclips(before+freeze+after)
\ No newline at end of file
+    return concatenate_videoclips(before+freeze+after)
diff --git a/moviepy/video/fx/freeze_region.py b/moviepy/video/fx/freeze_region.py
index 8578fa3fd..a8ec7cf09 100644
--- a/moviepy/video/fx/freeze_region.py
+++ b/moviepy/video/fx/freeze_region.py
@@ -1,7 +1,8 @@
 from moviepy.decorators import apply_to_mask
-from .crop import crop
 from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
 
+from .crop import crop
+
 
 #@apply_to_mask
 def freeze_region(clip, t=0, region=None, outside_region=None, mask=None):
diff --git a/moviepy/video/fx/headblur.py b/moviepy/video/fx/headblur.py
index b1adf62b1..2d46d5a77 100644
--- a/moviepy/video/fx/headblur.py
+++ b/moviepy/video/fx/headblur.py
@@ -1,6 +1,5 @@
 import numpy as np
 
-
 #------- CHECKING DEPENDENCIES ----------------------------------------- 
 try:
     import cv2
diff --git a/moviepy/video/fx/loop.py b/moviepy/video/fx/loop.py
index ab9f7748e..b0c04beb3 100644
--- a/moviepy/video/fx/loop.py
+++ b/moviepy/video/fx/loop.py
@@ -1,6 +1,4 @@
-from moviepy.decorators import (apply_to_mask,
-                                 apply_to_audio,
-                                 requires_duration)
+from moviepy.decorators import apply_to_audio, apply_to_mask, requires_duration
 
 
 @requires_duration
diff --git a/moviepy/video/fx/make_loopable.py b/moviepy/video/fx/make_loopable.py
index 131f39a8f..485887c7f 100644
--- a/moviepy/video/fx/make_loopable.py
+++ b/moviepy/video/fx/make_loopable.py
@@ -1,6 +1,7 @@
 import moviepy.video.compositing.transitions as transfx
 from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
 
+
 def make_loopable(clip, cross):
     """
     Makes the clip fade in progressively at its own end, this way
diff --git a/moviepy/video/fx/margin.py b/moviepy/video/fx/margin.py
index 786299dd8..20dd1930e 100644
--- a/moviepy/video/fx/margin.py
+++ b/moviepy/video/fx/margin.py
@@ -1,4 +1,5 @@
 import numpy as np
+
 from moviepy.decorators import apply_to_mask
 from moviepy.video.VideoClip import ImageClip
 
@@ -55,5 +56,3 @@ def fl(gf, t):
             im[top:top + h, left:left + w] = pic
             return im
         return clip.fl(fl)
-            
-    
diff --git a/moviepy/video/fx/mask_and.py b/moviepy/video/fx/mask_and.py
index 9b5c21dd3..ccec602ab 100644
--- a/moviepy/video/fx/mask_and.py
+++ b/moviepy/video/fx/mask_and.py
@@ -1,6 +1,8 @@
 import numpy as np
+
 from ..VideoClip import ImageClip
 
+
 def mask_and(clip, other_clip):
     """ Returns the logical 'and' (min) between two masks.
         other_clip can be a mask clip or a picture (np.array).
@@ -15,4 +17,4 @@ def mask_and(clip, other_clip):
     	return clip.fl_image(lambda f : np.minimum(f, other_clip))
     else:
     	return clip.fl(lambda gf, t : np.minimum(gf(t),
-    		                                     other_clip.get_frame(t)))
\ No newline at end of file
+    		                                     other_clip.get_frame(t)))
diff --git a/moviepy/video/fx/mask_color.py b/moviepy/video/fx/mask_color.py
index b5c102d88..fa3851892 100644
--- a/moviepy/video/fx/mask_color.py
+++ b/moviepy/video/fx/mask_color.py
@@ -1,5 +1,6 @@
 import numpy as np
 
+
 def mask_color(clip, color=None, thr=0, s=1):
     """ Returns a new clip with a mask for transparency where the original
     clip is of the given color.
@@ -22,4 +23,4 @@ def mask_color(clip, color=None, thr=0, s=1):
     mask = clip.fl_image(flim)
     mask.ismask= True
     newclip = clip.set_mask(mask)
-    return newclip
\ No newline at end of file
+    return newclip
diff --git a/moviepy/video/fx/mask_or.py b/moviepy/video/fx/mask_or.py
index 66af20881..abe5e74f4 100644
--- a/moviepy/video/fx/mask_or.py
+++ b/moviepy/video/fx/mask_or.py
@@ -1,6 +1,8 @@
 import numpy as np
+
 from ..VideoClip import ImageClip
 
+
 def mask_or(clip, other_clip):
     """ Returns the logical 'or' (max) between two masks.
         other_clip can be a mask clip or a picture (np.array).
@@ -15,4 +17,4 @@ def mask_or(clip, other_clip):
     	return clip.fl_image(lambda f : np.maximum(f, other_clip))
     else:
     	return clip.fl(lambda gf, t : np.maximum(gf(t),
-                                                 other_clip.get_frame(t)))
\ No newline at end of file
+                                                 other_clip.get_frame(t)))
diff --git a/moviepy/video/fx/painting.py b/moviepy/video/fx/painting.py
index 85228e6e4..b41bac30d 100644
--- a/moviepy/video/fx/painting.py
+++ b/moviepy/video/fx/painting.py
@@ -13,6 +13,7 @@
 
 import numpy as np
 
+
 def to_painting(image,saturation = 1.4,black = 0.006):
     """ transforms any photo into some kind of painting """
     edges = sobel(image.mean(axis=2))
@@ -40,4 +41,3 @@ def painting(clip, newsize=None, height=None, width=None):
     
     painting.__doc__ = doc
 #----------------------------------------------------------------------- 
-
diff --git a/moviepy/video/fx/resize.py b/moviepy/video/fx/resize.py
index deed05b8e..8636e749a 100644
--- a/moviepy/video/fx/resize.py
+++ b/moviepy/video/fx/resize.py
@@ -56,7 +56,7 @@ def resizer(pic, newsize):
         
     
 from moviepy.decorators import apply_to_mask
-   
+
 
 def resize(clip, newsize=None, height=None, width=None, apply_to_mask=True):
     """ 
diff --git a/moviepy/video/fx/rotate.py b/moviepy/video/fx/rotate.py
index 5755ff540..da22268d0 100644
--- a/moviepy/video/fx/rotate.py
+++ b/moviepy/video/fx/rotate.py
@@ -1,5 +1,7 @@
-from moviepy.decorators import apply_to_mask
 import numpy as np
+
+from moviepy.decorators import apply_to_mask
+
 try:
     from PIL import Image
     PIL_FOUND = True
@@ -68,4 +70,4 @@ def fl(gf, t):
         else:
             return pil_rotater(im, a, resample=resample, expand=expand)
 
-    return clip.fl(fl, apply_to=["mask"])
\ No newline at end of file
+    return clip.fl(fl, apply_to=["mask"])
diff --git a/moviepy/video/fx/speedx.py b/moviepy/video/fx/speedx.py
index e98b7522e..1c6b82cff 100644
--- a/moviepy/video/fx/speedx.py
+++ b/moviepy/video/fx/speedx.py
@@ -1,4 +1,4 @@
-from moviepy.decorators import apply_to_mask,apply_to_audio
+from moviepy.decorators import apply_to_audio, apply_to_mask
 
 
 def speedx(clip, factor = None, final_duration=None):
diff --git a/moviepy/video/fx/supersample.py b/moviepy/video/fx/supersample.py
index 5c7162b50..93b9d7a43 100644
--- a/moviepy/video/fx/supersample.py
+++ b/moviepy/video/fx/supersample.py
@@ -1,5 +1,6 @@
 import numpy as np
- 
+
+
 def supersample(clip, d, nframes):
     """ Replaces each frame at time t by the mean of `nframes` equally spaced frames
     taken in the interval [t-d, t+d]. This results in motion blur."""
@@ -9,4 +10,4 @@ def fl(gf, t):
         avg = np.mean(1.0*np.array([gf(t_) for t_ in tt], dtype='uint16'), axis=0)
         return avg.astype("uint8")
 
-    return clip.fl(fl)
\ No newline at end of file
+    return clip.fl(fl)
diff --git a/moviepy/video/fx/time_mirror.py b/moviepy/video/fx/time_mirror.py
index 0e3da2305..1c044e3e3 100644
--- a/moviepy/video/fx/time_mirror.py
+++ b/moviepy/video/fx/time_mirror.py
@@ -1,5 +1,4 @@
-from moviepy.decorators import (apply_to_mask, apply_to_audio,
-                                 requires_duration)
+from moviepy.decorators import apply_to_audio, apply_to_mask, requires_duration
 
 
 @requires_duration
diff --git a/moviepy/video/fx/time_symmetrize.py b/moviepy/video/fx/time_symmetrize.py
index 9eca6f2b8..de2f3181d 100644
--- a/moviepy/video/fx/time_symmetrize.py
+++ b/moviepy/video/fx/time_symmetrize.py
@@ -1,8 +1,9 @@
-from moviepy.decorators import (apply_to_mask, apply_to_audio,
-                                 requires_duration)
+from moviepy.decorators import apply_to_audio, apply_to_mask, requires_duration
 from moviepy.video.compositing.concatenate import concatenate_videoclips
+
 from .time_mirror import time_mirror
 
+
 @requires_duration
 @apply_to_mask
 def time_symmetrize(clip):
diff --git a/moviepy/video/io/ImageSequenceClip.py b/moviepy/video/io/ImageSequenceClip.py
index 31b09558d..662138c00 100644
--- a/moviepy/video/io/ImageSequenceClip.py
+++ b/moviepy/video/io/ImageSequenceClip.py
@@ -1,8 +1,9 @@
 import os
+
 import numpy as np
+from imageio import imread
 
 from ..VideoClip import VideoClip
-from imageio import imread
 
 
 class ImageSequenceClip(VideoClip):
diff --git a/moviepy/video/io/VideoFileClip.py b/moviepy/video/io/VideoFileClip.py
index cd5534e1d..1d5c8b63e 100644
--- a/moviepy/video/io/VideoFileClip.py
+++ b/moviepy/video/io/VideoFileClip.py
@@ -1,9 +1,9 @@
 import os
 
-from moviepy.video.VideoClip import VideoClip
 from moviepy.audio.io.AudioFileClip import AudioFileClip
 from moviepy.Clip import Clip
 from moviepy.video.io.ffmpeg_reader import FFMPEG_VideoReader
+from moviepy.video.VideoClip import VideoClip
 
 
 class VideoFileClip(VideoClip):
diff --git a/moviepy/video/io/bindings.py b/moviepy/video/io/bindings.py
index 6451c117f..2545ff2b6 100644
--- a/moviepy/video/io/bindings.py
+++ b/moviepy/video/io/bindings.py
@@ -5,6 +5,7 @@
 
 import numpy as np
 
+
 def PIL_to_npimage(im):
     """ Transforms a PIL/Pillow image into a numpy RGB(A) image.
         Actually all this do is returning numpy.array(im)."""
@@ -29,5 +30,3 @@ def mplfig_to_npimage(fig):
     buf = canvas.tostring_rgb()
     image= np.fromstring(buf,dtype=np.uint8)
     return image.reshape(h,w,3)
-
-
diff --git a/moviepy/video/io/ffmpeg_reader.py b/moviepy/video/io/ffmpeg_reader.py
index 268d51b1e..b8ba8be6c 100644
--- a/moviepy/video/io/ffmpeg_reader.py
+++ b/moviepy/video/io/ffmpeg_reader.py
@@ -5,19 +5,22 @@
 
 from __future__ import division
 
-import subprocess as sp
+import logging
+import os
 import re
+import subprocess as sp
 import warnings
-import logging
-logging.captureWarnings(True)
-
 
 import numpy as np
+
+from moviepy.compat import DEVNULL, PY3
 from moviepy.config import get_setting  # ffmpeg, ffmpeg.exe, etc...
 from moviepy.tools import cvsecs
-from moviepy.compat import PY3, DEVNULL
 
-import os
+logging.captureWarnings(True)
+
+
+
 
 
 class FFMPEG_VideoReader:
diff --git a/moviepy/video/io/ffmpeg_tools.py b/moviepy/video/io/ffmpeg_tools.py
index 523172f16..29d03c96c 100644
--- a/moviepy/video/io/ffmpeg_tools.py
+++ b/moviepy/video/io/ffmpeg_tools.py
@@ -1,12 +1,12 @@
 """ Misc. bindings to ffmpeg and ImageMagick."""
 
 import os
-import sys
 import subprocess as sp
+import sys
 
-from moviepy.tools import subprocess_call
 from moviepy.config import get_setting
-    
+from moviepy.tools import subprocess_call
+
 
 def ffmpeg_movie_from_frames(filename, folder, fps, digits=6, bitrate='v'):
     """
@@ -66,4 +66,3 @@ def ffmpeg_resize(video,output,size):
              output]
              
     subprocess_call(cmd)
-
diff --git a/moviepy/video/io/ffmpeg_writer.py b/moviepy/video/io/ffmpeg_writer.py
index 4d19968df..a4ab51949 100644
--- a/moviepy/video/io/ffmpeg_writer.py
+++ b/moviepy/video/io/ffmpeg_writer.py
@@ -3,14 +3,16 @@
 out of VideoClips
 """
 
-import subprocess as sp
 import os
+import subprocess as sp
+
 import numpy as np
 from proglog import proglog
 
-from moviepy.compat import PY3, DEVNULL
+from moviepy.compat import DEVNULL, PY3
 from moviepy.config import get_setting
 
+
 class FFMPEG_VideoWriter:
     """ A class for FFMPEG-based video writing.
 
diff --git a/moviepy/video/io/gif_writers.py b/moviepy/video/io/gif_writers.py
index c910eea72..b17d0e666 100644
--- a/moviepy/video/io/gif_writers.py
+++ b/moviepy/video/io/gif_writers.py
@@ -1,12 +1,13 @@
 import os
 import subprocess as sp
-from moviepy.config import get_setting
-from moviepy.decorators import (requires_duration,use_clip_fps_by_default)
-from moviepy.tools import subprocess_call
-import proglog
+
 import numpy as np
+import proglog
 
 from moviepy.compat import DEVNULL
+from moviepy.config import get_setting
+from moviepy.decorators import requires_duration, use_clip_fps_by_default
+from moviepy.tools import subprocess_call
 
 try:
     import imageio
diff --git a/moviepy/video/io/html_tools.py b/moviepy/video/io/html_tools.py
index acc251a85..f24af513f 100644
--- a/moviepy/video/io/html_tools.py
+++ b/moviepy/video/io/html_tools.py
@@ -11,10 +11,12 @@
 
 import os
 from base64 import b64encode
-from moviepy.tools import extensions_dict
 
-from ..VideoClip import VideoClip, ImageClip
 from moviepy.audio.AudioClip import AudioClip
+from moviepy.tools import extensions_dict
+
+from ..VideoClip import ImageClip, VideoClip
+from .ffmpeg_reader import ffmpeg_parse_infos
 
 try:
     from IPython.display import HTML
@@ -26,7 +28,6 @@ def __add__(self, other):
 except ImportError:
     ipython_available = False
 
-from .ffmpeg_reader import ffmpeg_parse_infos
 
 sorry = "Sorry, seems like your browser doesn't support HTML5 audio/video"
 templates = {"audio":("<audio controls>"
diff --git a/moviepy/video/io/preview.py b/moviepy/video/io/preview.py
index eb433bbaf..fbab22d41 100644
--- a/moviepy/video/io/preview.py
+++ b/moviepy/video/io/preview.py
@@ -1,12 +1,12 @@
 import threading
 import time
-import pygame as pg
+
 import numpy as np
 
-from moviepy.decorators import (requires_duration, convert_masks_to_RGB)
+import pygame as pg
+from moviepy.decorators import convert_masks_to_RGB, requires_duration
 from moviepy.tools import cvsecs
 
-
 pg.init()
 pg.display.set_caption('MoviePy')
 
diff --git a/moviepy/video/io/sliders.py b/moviepy/video/io/sliders.py
index 8411631d1..f94eae0e1 100644
--- a/moviepy/video/io/sliders.py
+++ b/moviepy/video/io/sliders.py
@@ -1,5 +1,6 @@
 import matplotlib.pyplot as plt
-from matplotlib.widgets import Slider, Button
+from matplotlib.widgets import Button, Slider
+
 
 def sliders(f, sliders_properties, wait_for_validation = False):
     """ A light GUI to manually explore and tune the outputs of 
diff --git a/moviepy/video/tools/credits.py b/moviepy/video/tools/credits.py
index 77b67ab11..77f0397de 100644
--- a/moviepy/video/tools/credits.py
+++ b/moviepy/video/tools/credits.py
@@ -4,9 +4,9 @@
 matter.
 """
 
-from moviepy.video.VideoClip import TextClip, ImageClip
 from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
 from moviepy.video.fx.resize import resize
+from moviepy.video.VideoClip import ImageClip, TextClip
 
 
 def credits1(creditfile, width, stretch=30, color='white', stroke_color='black',
diff --git a/moviepy/video/tools/cuts.py b/moviepy/video/tools/cuts.py
index f8ab7d086..0c0afcefc 100644
--- a/moviepy/video/tools/cuts.py
+++ b/moviepy/video/tools/cuts.py
@@ -2,9 +2,12 @@
 the cuts in MoviePy """
 
 from collections import defaultdict
-from moviepy.decorators import use_clip_fps_by_default
+
 import numpy as np
 
+from moviepy.decorators import use_clip_fps_by_default
+
+
 @use_clip_fps_by_default
 def find_video_period(clip,fps=None,tmin=.3):
     """ Finds the period of a video based on frames correlation """
diff --git a/moviepy/video/tools/drawing.py b/moviepy/video/tools/drawing.py
index b398708c6..8713a545f 100644
--- a/moviepy/video/tools/drawing.py
+++ b/moviepy/video/tools/drawing.py
@@ -5,6 +5,7 @@
 
 import numpy as np
 
+
 def blit(im1, im2, pos=None, mask=None, ismask=False):
     """ Blit an image over another.
     
diff --git a/moviepy/video/tools/interpolators.py b/moviepy/video/tools/interpolators.py
index 3bfdcb785..9d1f4955a 100644
--- a/moviepy/video/tools/interpolators.py
+++ b/moviepy/video/tools/interpolators.py
@@ -5,6 +5,7 @@
 
 import numpy as np
 
+
 class Interpolator:
     """ Poorman's linear interpolator, doesn't require Scipy. """
     
diff --git a/moviepy/video/tools/segmenting.py b/moviepy/video/tools/segmenting.py
index f79989d62..935dd497b 100644
--- a/moviepy/video/tools/segmenting.py
+++ b/moviepy/video/tools/segmenting.py
@@ -1,4 +1,5 @@
 import numpy as np
+
 import scipy.ndimage as ndi
 from moviepy.video.VideoClip import ImageClip
 
diff --git a/moviepy/video/tools/subtitles.py b/moviepy/video/tools/subtitles.py
index 427e2fe86..fc396c1a0 100644
--- a/moviepy/video/tools/subtitles.py
+++ b/moviepy/video/tools/subtitles.py
@@ -1,10 +1,12 @@
 """ Experimental module for subtitles support. """
 
 import re
+
 import numpy as np
-from moviepy.video.VideoClip import VideoClip, TextClip
-from moviepy.tools import cvsecs
+
 from moviepy.decorators import convert_to_seconds
+from moviepy.tools import cvsecs
+from moviepy.video.VideoClip import TextClip, VideoClip
 
 
 class SubtitlesClip(VideoClip):
diff --git a/moviepy/video/tools/tracking.py b/moviepy/video/tools/tracking.py
index 6b0a6fca8..459c4e82f 100644
--- a/moviepy/video/tools/tracking.py
+++ b/moviepy/video/tools/tracking.py
@@ -9,12 +9,12 @@
 """
 
 import numpy as np
+
+from moviepy.decorators import convert_to_seconds, use_clip_fps_by_default
 from scipy.interpolate import interp1d
 
 from ..io.preview import imdisplay
 from .interpolators import Trajectory
-from moviepy.decorators import (convert_to_seconds, use_clip_fps_by_default)
-
 
 try:
     import cv2
diff --git a/tests/test_AudioClips.py b/tests/test_AudioClips.py
index e7d160c37..6f6953a8d 100644
--- a/tests/test_AudioClips.py
+++ b/tests/test_AudioClips.py
@@ -3,14 +3,16 @@
 import os
 import sys
 
-from numpy import sin, pi
 import pytest
+from numpy import pi, sin
 
+from moviepy.audio.AudioClip import (AudioClip, CompositeAudioClip,
+                                     concatenate_audioclips)
 from moviepy.audio.io.AudioFileClip import AudioFileClip
-from moviepy.audio.AudioClip import AudioClip, concatenate_audioclips, CompositeAudioClip
 
 from .test_helper import TMP_DIR
 
+
 def test_audio_coreader():
     if sys.platform.startswith("win"):
         pytest.skip("Temporarily skipping on windows because otherwise test suite fails with Invalid Handle Error")
diff --git a/tests/test_ImageSequenceClip.py b/tests/test_ImageSequenceClip.py
index 535260658..1fe3d86fe 100644
--- a/tests/test_ImageSequenceClip.py
+++ b/tests/test_ImageSequenceClip.py
@@ -4,10 +4,12 @@
 import sys
 
 import pytest
+
 from moviepy.video.io.ImageSequenceClip import ImageSequenceClip
 
 from .test_helper import TMP_DIR
 
+
 def test_1():
     images=[]
     durations=[]
diff --git a/tests/test_PR.py b/tests/test_PR.py
index 246d2adef..0ed03eeb7 100644
--- a/tests/test_PR.py
+++ b/tests/test_PR.py
@@ -4,14 +4,16 @@
 import sys
 
 import pytest
+
+from moviepy.utils import close_all_clips
+from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
 from moviepy.video.fx.scroll import scroll
 from moviepy.video.io.VideoFileClip import VideoFileClip
 from moviepy.video.tools.interpolators import Trajectory
 from moviepy.video.VideoClip import ColorClip, ImageClip, TextClip
-from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
-from moviepy.utils import close_all_clips
 
-from .test_helper import TMP_DIR, FONT
+from .test_helper import FONT, TMP_DIR
+
 
 def test_PR_306():
 
diff --git a/tests/test_TextClip.py b/tests/test_TextClip.py
index 4d4106dd4..376219aef 100644
--- a/tests/test_TextClip.py
+++ b/tests/test_TextClip.py
@@ -1,12 +1,14 @@
 import sys
 
 import pytest
+
 from moviepy.utils import close_all_clips
 from moviepy.video.fx.blink import blink
 from moviepy.video.VideoClip import TextClip
 
 from .test_helper import TMP_DIR
 
+
 def test_duration():
 
     clip = TextClip('hello world', size=(1280,720), color='white')
diff --git a/tests/test_VideoClip.py b/tests/test_VideoClip.py
index 2305f5daa..d040ddd6b 100644
--- a/tests/test_VideoClip.py
+++ b/tests/test_VideoClip.py
@@ -1,18 +1,19 @@
-import sys
 import os
-from numpy import sin, pi
+import sys
 
 import pytest
+from numpy import pi, sin
 
-from moviepy.video.VideoClip import VideoClip, ColorClip
-from moviepy.video.io.VideoFileClip import VideoFileClip
 from moviepy.audio.AudioClip import AudioClip
 from moviepy.audio.io.AudioFileClip import AudioFileClip
-from moviepy.video.fx.speedx import speedx
 from moviepy.utils import close_all_clips
+from moviepy.video.fx.speedx import speedx
+from moviepy.video.io.VideoFileClip import VideoFileClip
+from moviepy.video.VideoClip import ColorClip, VideoClip
 
 from .test_helper import TMP_DIR
 
+
 def test_check_codec():
     clip = VideoFileClip("media/big_buck_bunny_432_433.webm")
     location = os.path.join(TMP_DIR, "not_a_video.mas")
diff --git a/tests/test_VideoFileClip.py b/tests/test_VideoFileClip.py
index b2501224b..1dc448736 100644
--- a/tests/test_VideoFileClip.py
+++ b/tests/test_VideoFileClip.py
@@ -4,13 +4,15 @@
 import sys
 
 import pytest
+
+from moviepy.utils import close_all_clips
 from moviepy.video.compositing.CompositeVideoClip import clips_array
-from moviepy.video.VideoClip import ColorClip
 from moviepy.video.io.VideoFileClip import VideoFileClip
-from moviepy.utils import close_all_clips
+from moviepy.video.VideoClip import ColorClip
 
 from .test_helper import TMP_DIR
 
+
 def test_setup():
     """Test VideoFileClip setup."""
     red = ColorClip((256,200), color=(255,0,0))
diff --git a/tests/test_Videos.py b/tests/test_Videos.py
index 8989ff3f4..32b4d1c69 100644
--- a/tests/test_Videos.py
+++ b/tests/test_Videos.py
@@ -4,12 +4,14 @@
 import sys
 
 import pytest
+
 from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
 from moviepy.video.fx.mask_color import mask_color
 from moviepy.video.VideoClip import ColorClip, ImageClip
 
 from .test_helper import TMP_DIR
 
+
 def test_afterimage():
     ai = ImageClip("media/afterimage.png")
     masked_clip = mask_color(ai, color=[0,255,1]) # for green
diff --git a/tests/test_compositing.py b/tests/test_compositing.py
index c09d6999c..422070679 100644
--- a/tests/test_compositing.py
+++ b/tests/test_compositing.py
@@ -1,10 +1,13 @@
 # -*- coding: utf-8 -*-
 """Compositing tests for use with pytest."""
-from os.path import join
 import sys
+from os.path import join
+
 import pytest
+
 from moviepy.editor import *
 from moviepy.utils import close_all_clips
+
 from .test_helper import TMP_DIR
 
 
diff --git a/tests/test_ffmpeg_reader.py b/tests/test_ffmpeg_reader.py
index 86589d7bd..c70a9efae 100644
--- a/tests/test_ffmpeg_reader.py
+++ b/tests/test_ffmpeg_reader.py
@@ -1,10 +1,12 @@
 # -*- coding: utf-8 -*-
 """FFmpeg reader tests meant to be run with pytest."""
 import sys
+
 import pytest
 
 from moviepy.video.io.ffmpeg_reader import ffmpeg_parse_infos
 
+
 def test_ffmpeg_parse_infos():
     d=ffmpeg_parse_infos("media/big_buck_bunny_432_433.webm")
     assert d['duration'] == 1.0
diff --git a/tests/test_fx.py b/tests/test_fx.py
index 4fd4d80bd..67aa8444f 100644
--- a/tests/test_fx.py
+++ b/tests/test_fx.py
@@ -2,6 +2,9 @@
 import sys
 
 import pytest
+
+from moviepy.audio.fx.audio_normalize import audio_normalize
+from moviepy.audio.io.AudioFileClip import AudioFileClip
 from moviepy.utils import close_all_clips
 from moviepy.video.fx.blackwhite import blackwhite
 # from moviepy.video.fx.blink import blink
@@ -21,12 +24,11 @@
 from moviepy.video.fx.speedx import speedx
 from moviepy.video.fx.time_mirror import time_mirror
 from moviepy.video.fx.time_symmetrize import time_symmetrize
-from moviepy.audio.fx.audio_normalize import audio_normalize
-from moviepy.audio.io.AudioFileClip import AudioFileClip
 from moviepy.video.io.VideoFileClip import VideoFileClip
 
 from .test_helper import TMP_DIR
 
+
 def get_test_video():
     return VideoFileClip("media/big_buck_bunny_432_433.webm").subclip(0, 1)
 
diff --git a/tests/test_helper.py b/tests/test_helper.py
index 9a17b495b..3ba28ef71 100644
--- a/tests/test_helper.py
+++ b/tests/test_helper.py
@@ -15,4 +15,3 @@
     # it doesn't help.
 else:
     FONT = "Liberation-Mono" # This is available in the fonts-liberation package on Linux.
-
diff --git a/tests/test_issues.py b/tests/test_issues.py
index 4bf0c0224..709d08152 100644
--- a/tests/test_issues.py
+++ b/tests/test_issues.py
@@ -4,13 +4,14 @@
 import sys
 
 import pytest
+
 from moviepy.editor import *
 from moviepy.utils import close_all_clips
+from moviepy.video.fx.blink import blink
+from moviepy.video.fx.resize import resize
 
 from .test_helper import PYTHON_VERSION, TMP_DIR, TRAVIS
 
-from moviepy.video.fx.blink import blink
-from moviepy.video.fx.resize import resize
 
 def test_issue_145():
     video = ColorClip((800, 600), color=(255, 0, 0)).set_duration(5)
diff --git a/tests/test_misc.py b/tests/test_misc.py
index 143e77318..b52eb946c 100644
--- a/tests/test_misc.py
+++ b/tests/test_misc.py
@@ -1,16 +1,18 @@
 import os
 import sys
 
+import pytest
+
 import moviepy.video.tools.cuts as cuts
 from moviepy.utils import close_all_clips
-import pytest
 from moviepy.video.compositing.CompositeVideoClip import CompositeVideoClip
 from moviepy.video.compositing.concatenate import concatenate_videoclips
+from moviepy.video.io.VideoFileClip import VideoFileClip
 from moviepy.video.tools.subtitles import SubtitlesClip, file_to_subtitles
 from moviepy.video.VideoClip import ColorClip, TextClip
-from moviepy.video.io.VideoFileClip import VideoFileClip
 
-from .test_helper import TMP_DIR, FONT
+from .test_helper import FONT, TMP_DIR
+
 
 def test_cuts1():
     clip = VideoFileClip("media/big_buck_bunny_432_433.webm").resize(0.2)
diff --git a/tests/test_resourcerelease.py b/tests/test_resourcerelease.py
index 87ac1bebd..bb9b2c501 100644
--- a/tests/test_resourcerelease.py
+++ b/tests/test_resourcerelease.py
@@ -7,16 +7,17 @@
     
     Note: Platform dependent test. Will only fail on Windows > NT. """
 
-from os import remove
-from os.path import join
 import subprocess as sp
 import time
-# from tempfile import NamedTemporaryFile
-from .test_helper import TMP_DIR
+from os import remove
+from os.path import join
 
 from moviepy.video.compositing.CompositeVideoClip import clips_array
-from moviepy.video.VideoClip import ColorClip
 from moviepy.video.io.VideoFileClip import VideoFileClip
+from moviepy.video.VideoClip import ColorClip
+
+# from tempfile import NamedTemporaryFile
+from .test_helper import TMP_DIR
 
 
 def test_release_of_file_via_close():
diff --git a/tests/test_resourcereleasedemo.py b/tests/test_resourcereleasedemo.py
index f68c41f82..5cee24a04 100644
--- a/tests/test_resourcereleasedemo.py
+++ b/tests/test_resourcereleasedemo.py
@@ -7,16 +7,18 @@
     
     Note: Platform dependent test. Will only fail on Windows > NT. """
 
-from os import remove
-from os.path import join
 import subprocess as sp
 import time
-# from tempfile import NamedTemporaryFile
-from .test_helper import TMP_DIR
+from os import remove
+from os.path import join
 
 from moviepy.video.compositing.CompositeVideoClip import clips_array
-from moviepy.video.VideoClip import ColorClip
 from moviepy.video.io.VideoFileClip import VideoFileClip
+from moviepy.video.VideoClip import ColorClip
+
+# from tempfile import NamedTemporaryFile
+from .test_helper import TMP_DIR
+
 # import pytest
 
 
diff --git a/tests/test_tools.py b/tests/test_tools.py
index 3711f16ee..6319b27ad 100644
--- a/tests/test_tools.py
+++ b/tests/test_tools.py
@@ -3,9 +3,10 @@
 import sys
 import time
 
-import moviepy.tools as tools
 import pytest
 
+import moviepy.tools as tools
+
 
 def test_ext():
     """Test for find_extension function."""
diff --git a/tests/test_videotools.py b/tests/test_videotools.py
index 076dcdeeb..7098a5878 100644
--- a/tests/test_videotools.py
+++ b/tests/test_videotools.py
@@ -1,12 +1,13 @@
 # -*- coding: utf-8 -*-
 """Video file clip tests meant to be run with pytest."""
-import sys
 import os
+import sys
 
 from moviepy.video.tools.credits import credits1
 
 from .test_helper import TMP_DIR
 
+
 def test_credits():
     credit_file = "# This is a comment\n" \
                   "# The next line says : leave 4 blank lines\n" \