Merge pull request #582 from gpantelis/patch-7

PEP 8 compatible

moviepy/audio/fx/volumex.py

@@ -1,19 +1,21 @@
 from moviepy.decorators import audio_video_fx
 
+
 @audio_video_fx
 def volumex(clip, factor):
     """ Returns a clip with audio volume multiplied by the
     value `factor`. Can be applied to both audio and video clips.
 
     This effect is loaded as a clip method when you use moviepy.editor,
     so you can just write ``clip.volumex(2)``
-    
+
     Examples
     ---------
 
     >>> newclip = volumex(clip, 2.0) # doubles audio volume
     >>> newclip = clip.fx( volumex, 0.5) # half audio, use with fx
     >>> newclip = clip.volumex(2) # only if you used "moviepy.editor"
-    """ 
+    """
     return clip.fl(lambda gf, t: factor * gf(t),
-    	           keep_duration = True)
+                   keep_duration=True)
+