Code cleanup

6 files changed, 181 insertions, 117 deletions

diff --git a/components/__base__.py b/components/__base__.py
index f564aad..94ac6f2 100644
--- a/components/__base__.py
+++ b/components/__base__.py
@@ -1,5 +1,6 @@
 from PyQt4 import QtGui
 
+
 class Component:
     def __str__(self):
         return self.__doc__
@@ -14,7 +15,7 @@ class Component:
 
     def reset(self):
         self.canceled = False
-        
+
     def preFrameRender(self, **kwargs):
         for var, value in kwargs.items():
             exec('self.%s = value' % var)
@@ -22,32 +23,35 @@ class Component:
     def pickColor(self):
         color = QtGui.QColorDialog.getColor()
         if color.isValid():
-            RGBstring = '%s,%s,%s' % (str(color.red()), str(color.green()), str(color.blue()))
-            btnStyle = "QPushButton { background-color : %s; outline: none; }" % color.name()
+            RGBstring = '%s,%s,%s' % (
+                str(color.red()), str(color.green()), str(color.blue()))
+            btnStyle = "QPushButton{background-color: %s; outline: none;}" \
+                % color.name()
             return RGBstring, btnStyle
         else:
             return None, None
 
     def RGBFromString(self, string):
-       ''' turns an RGB string like "255, 255, 255" into a tuple '''
-       try:
-         tup = tuple([int(i) for i in string.split(',')])
-         if len(tup) != 3:
-            raise ValueError
-         for i in tup:
-            if i > 255 or i < 0:
-               raise ValueError
-         return tup
-       except:
-         return (255, 255, 255)
+        ''' turns an RGB string like "255, 255, 255" into a tuple '''
+        try:
+            tup = tuple([int(i) for i in string.split(',')])
+            if len(tup) != 3:
+                raise ValueError
+            for i in tup:
+                if i > 255 or i < 0:
+                    raise ValueError
+            return tup
+        except:
+            return (255, 255, 255)
 
     '''
     ### Reference methods for creating a new component
     ### (Inherit from this class and define these)
-    
+
     def widget(self, parent):
         self.parent = parent
-        page = uic.loadUi(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'example.ui'))
+        page = uic.loadUi(os.path.join(
+            os.path.dirname(os.path.realpath(__file__)), 'example.ui'))
         # connect widgets signals
         self.page = page
         return page
@@ -55,13 +59,13 @@ class Component:
     def update(self):
         # read widget values
         self.parent.drawPreview()
-        
+
     def previewRender(self, previewWorker):
         width = int(previewWorker.core.settings.value('outputWidth'))
         height = int(previewWorker.core.settings.value('outputHeight'))
         image = Image.new("RGBA", (width, height), (0,0,0,0))
         return image
-        
+
     def frameRender(self, moduleNo, frameNo):
         width = int(self.worker.core.settings.value('outputWidth'))
         height = int(self.worker.core.settings.value('outputHeight'))
@@ -70,10 +74,10 @@ class Component:
 
     def loadPreset(self, presetDict):
         # update widgets using a preset dict
-        
+
     def savePreset(self):
         return {}
-        
+
     def cancel(self):
         self.canceled = True
 
diff --git a/components/color.py b/components/color.py
index c2a49e2..b050fbd 100644
--- a/components/color.py
+++ b/components/color.py
@@ -4,31 +4,39 @@ from PyQt4.QtGui import QColor
 import os
 from . import __base__
 
+
 class Component(__base__.Component):
     '''Color'''
     def widget(self, parent):
         self.parent = parent
-        page = uic.loadUi(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'color.ui'))
-        
-        self.color1 = (0,0,0)
-        self.color2 = (133,133,133)
+        page = uic.loadUi(os.path.join(
+            os.path.dirname(os.path.realpath(__file__)), 'color.ui'))
+
+        self.color1 = (0, 0, 0)
+        self.color2 = (133, 133, 133)
         self.x = 0
         self.y = 0
-        
+
         page.lineEdit_color1.setText('%s,%s,%s' % self.color1)
         page.lineEdit_color2.setText('%s,%s,%s' % self.color2)
-        page.pushButton_color1.clicked.connect(lambda: self.pickColor(1))
-        btnStyle = "QPushButton { background-color : %s; outline: none; }" % QColor(*self.color1).name()
+
+        btnStyle = "QPushButton { background-color : %s; outline: none; }" \
+            % QColor(*self.color1).name()
+
+        btnStyle = "QPushButton { background-color : %s; outline: none; }" \
+            % QColor(*self.color2).name()
+
         page.pushButton_color1.setStyleSheet(btnStyle)
-        page.pushButton_color2.clicked.connect(lambda: self.pickColor(2))
-        btnStyle = "QPushButton { background-color : %s; outline: none; }" % QColor(*self.color2).name()
         page.pushButton_color2.setStyleSheet(btnStyle)
+        page.pushButton_color1.clicked.connect(lambda: self.pickColor(1))
+        page.pushButton_color2.clicked.connect(lambda: self.pickColor(2))
+
         # disable color #2 until non-default 'fill' option gets changed
         page.lineEdit_color2.setDisabled(True)
         page.pushButton_color2.setDisabled(True)
         page.spinBox_x.setValue(self.x)
         page.spinBox_x.setValue(self.y)
-        
+
         page.lineEdit_color1.textChanged.connect(self.update)
         page.lineEdit_color2.textChanged.connect(self.update)
         page.spinBox_x.valueChanged.connect(self.update)
@@ -42,39 +50,44 @@ class Component(__base__.Component):
         self.x = self.page.spinBox_x.value()
         self.y = self.page.spinBox_y.value()
         self.parent.drawPreview()
-    
+
     def previewRender(self, previewWorker):
         width = int(previewWorker.core.settings.value('outputWidth'))
         height = int(previewWorker.core.settings.value('outputHeight'))
         return self.drawFrame(width, height)
-    
+
     def preFrameRender(self, **kwargs):
         super().preFrameRender(**kwargs)
         return ['static']
-    
+
     def frameRender(self, moduleNo, arrayNo, frameNo):
         width = int(self.worker.core.settings.value('outputWidth'))
         height = int(self.worker.core.settings.value('outputHeight'))
         return self.drawFrame(width, height)
-        
+
     def drawFrame(self, width, height):
-        r,g,b = self.color1
+        r, g, b = self.color1
         return Image.new("RGBA", (width, height), (r, g, b, 255))
 
     def loadPreset(self, pr):
         self.page.lineEdit_color1.setText('%s,%s,%s' % pr['color1'])
         self.page.lineEdit_color2.setText('%s,%s,%s' % pr['color2'])
-        btnStyle = "QPushButton { background-color : %s; outline: none; }" % QColor(*pr['color1']).name()
+
+        btnStyle = "QPushButton { background-color : %s; outline: none; }" \
+            % QColor(*pr['color1']).name()
+
+        btnStyle = "QPushButton { background-color : %s; outline: none; }" \
+            % QColor(*pr['color2']).name()
+
         self.page.pushButton_color1.setStyleSheet(btnStyle)
-        btnStyle = "QPushButton { background-color : %s; outline: none; }" % QColor(*pr['color2']).name()
         self.page.pushButton_color2.setStyleSheet(btnStyle)
-        
+
     def savePreset(self):
         return {
-            'color1' : self.color1,
-            'color2' : self.color2,
+            'color1': self.color1,
+            'color2': self.color2,
         }
-        
+
     def pickColor(self, num):
         RGBstring, btnStyle = super().pickColor()
         if not RGBstring:
diff --git a/components/image.py b/components/image.py
index ffbb117..f9a92ca 100644
--- a/components/image.py
+++ b/components/image.py
@@ -3,26 +3,28 @@ from PyQt4 import uic, QtGui, QtCore
 import os
 from . import __base__
 
+
 class Component(__base__.Component):
     '''Image'''
     def widget(self, parent):
         self.parent = parent
         self.settings = parent.settings
-        page = uic.loadUi(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'image.ui'))
+        page = uic.loadUi(os.path.join(
+            os.path.dirname(os.path.realpath(__file__)), 'image.ui'))
         self.imagePath = ''
         self.x = 0
         self.y = 0
-        
+
         page.lineEdit_image.textChanged.connect(self.update)
         page.pushButton_image.clicked.connect(self.pickImage)
-        
+
         self.page = page
         return page
 
     def update(self):
         self.imagePath = self.page.lineEdit_image.text()
         self.parent.drawPreview()
-        
+
     def previewRender(self, previewWorker):
         width = int(previewWorker.core.settings.value('outputWidth'))
         height = int(previewWorker.core.settings.value('outputHeight'))
@@ -36,9 +38,9 @@ class Component(__base__.Component):
         width = int(self.worker.core.settings.value('outputWidth'))
         height = int(self.worker.core.settings.value('outputHeight'))
         return self.drawFrame(width, height)
-        
+
     def drawFrame(self, width, height):
-        frame = Image.new("RGBA", (width, height), (0,0,0,0))
+        frame = Image.new("RGBA", (width, height), (0, 0, 0, 0))
         if self.imagePath and os.path.exists(self.imagePath):
             image = Image.open(self.imagePath)
             if image.size != (width, height):
@@ -48,16 +50,16 @@ class Component(__base__.Component):
 
     def loadPreset(self, pr):
         self.page.lineEdit_image.setText(pr['image'])
-        
+
     def savePreset(self):
         return {
-            'image' : self.imagePath,
+            'image': self.imagePath,
         }
-        
+
     def pickImage(self):
         imgDir = self.settings.value("backgroundDir", os.path.expanduser("~"))
-        filename = QtGui.QFileDialog.getOpenFileName(self.page,
-            "Choose Image", imgDir, "Image Files (*.jpg *.png)")
+        filename = QtGui.QFileDialog.getOpenFileName(
+            self.page, "Choose Image", imgDir, "Image Files (*.jpg *.png)")
         if filename: 
             self.settings.setValue("backgroundDir", os.path.dirname(filename))
             self.page.lineEdit_image.setText(filename)
diff --git a/components/original.py b/components/original.py
index b0a7579..4d0e83b 100644
--- a/components/original.py
+++ b/components/original.py
@@ -2,7 +2,8 @@ import numpy
 from PIL import Image, ImageDraw
 from PyQt4 import uic, QtGui
 from PyQt4.QtGui import QColor
-import os, random
+import os
+import random
 from . import __base__
 import time
 from copy import copy
@@ -12,24 +13,25 @@ class Component(__base__.Component):
     '''Original Audio Visualization'''
     def widget(self, parent):
         self.parent = parent
-        self.visColor = (255,255,255)
+        self.visColor = (255, 255, 255)
 
-        page = uic.loadUi(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'original.ui'))
+        page = uic.loadUi(os.path.join(
+            os.path.dirname(os.path.realpath(__file__)), 'original.ui'))
         page.comboBox_visLayout.addItem("Classic")
         page.comboBox_visLayout.addItem("Split")
         page.comboBox_visLayout.addItem("Bottom")
-        #visLayoutValue = int(self.settings.value('visLayout'))
         page.comboBox_visLayout.setCurrentIndex(0)
         page.comboBox_visLayout.currentIndexChanged.connect(self.update)
         page.lineEdit_visColor.setText('%s,%s,%s' % self.visColor)
         page.pushButton_visColor.clicked.connect(lambda: self.pickColor())
-        btnStyle = "QPushButton { background-color : %s; outline: none; }" % QColor(*self.visColor).name()
+        btnStyle = "QPushButton { background-color : %s; outline: none; }" \
+            % QColor(*self.visColor).name()
         page.pushButton_visColor.setStyleSheet(btnStyle)
         page.lineEdit_visColor.textChanged.connect(self.update)
         self.page = page
         self.canceled = False
         return page
-    
+
     def update(self):
         self.layout = self.page.comboBox_visLayout.currentIndex()
         self.visColor = self.RGBFromString(self.page.lineEdit_visColor.text())
@@ -37,21 +39,25 @@ class Component(__base__.Component):
 
     def loadPreset(self, pr):
         self.page.lineEdit_visColor.setText('%s,%s,%s' % pr['visColor'])
-        btnStyle = "QPushButton { background-color : %s; outline: none; }" % QColor(*pr['visColor']).name()
+        btnStyle = "QPushButton { background-color : %s; outline: none; }" \
+            % QColor(*pr['visColor']).name()
         self.page.pushButton_visColor.setStyleSheet(btnStyle)
         self.page.comboBox_visLayout.setCurrentIndex(pr['layout'])
-        
+
     def savePreset(self):
-        return { 'layout' : self.layout,
-                  'visColor' : self.visColor,
-                }
+        return {
+            'layout': self.layout,
+            'visColor': self.visColor,
+        }
 
     def previewRender(self, previewWorker):
-        spectrum = numpy.fromfunction(lambda x: 0.008*(x-128)**2, (255,), dtype="int16")
+        spectrum = numpy.fromfunction(
+            lambda x: 0.008*(x-128)**2, (255,), dtype="int16")
         width = int(previewWorker.core.settings.value('outputWidth'))
         height = int(previewWorker.core.settings.value('outputHeight'))
-        return self.drawBars(width, height, spectrum, self.visColor, self.layout)
-    
+        return self.drawBars(
+            width, height, spectrum, self.visColor, self.layout)
+
     def preFrameRender(self, **kwargs):
         super().preFrameRender(**kwargs)
         self.smoothConstantDown = 0.08
@@ -64,19 +70,24 @@ class Component(__base__.Component):
         for i in range(0, len(self.completeAudioArray), self.sampleSize):
             if self.canceled:
                 break
-            self.lastSpectrum = self.transformData(i, self.completeAudioArray, self.sampleSize,
-                self.smoothConstantDown, self.smoothConstantUp, self.lastSpectrum)
+            self.lastSpectrum = self.transformData(
+                i, self.completeAudioArray, self.sampleSize,
+                self.smoothConstantDown, self.smoothConstantUp,
+                self.lastSpectrum)
             self.spectrumArray[i] = copy(self.lastSpectrum)
 
             progress = int(100*(i/len(self.completeAudioArray)))
             if progress >= 100:
                 progress = 100
-            pStr = "Analyzing audio: "+ str(progress) +'%'
+            pStr = "Analyzing audio: "+str(progress)+'%'
             self.progressBarSetText.emit(pStr)
             self.progressBarUpdate.emit(int(progress))
-        
+
     def frameRender(self, moduleNo, arrayNo, frameNo):
-        return self.drawBars(self.width, self.height, self.spectrumArray[arrayNo], self.visColor, self.layout)
+        return self.drawBars(
+            self.width, self.height,
+            self.spectrumArray[arrayNo],
+            self.visColor, self.layout)
 
     def pickColor(self):
         RGBstring, btnStyle = super().pickColor()
@@ -85,14 +96,17 @@ class Component(__base__.Component):
         self.page.lineEdit_visColor.setText(RGBstring)
         self.page.pushButton_visColor.setStyleSheet(btnStyle)
 
-    def transformData(self, i, completeAudioArray, sampleSize, smoothConstantDown, smoothConstantUp, lastSpectrum):
+    def transformData(
+      self, i, completeAudioArray, sampleSize,
+      smoothConstantDown, smoothConstantUp, lastSpectrum):
         if len(completeAudioArray) < (i + sampleSize):
             sampleSize = len(completeAudioArray) - i
 
         window = numpy.hanning(sampleSize)
         data = completeAudioArray[i:i+sampleSize][::1] * window
         paddedSampleSize = 2048
-        paddedData = numpy.pad(data, (0, paddedSampleSize - sampleSize), 'constant')
+        paddedData = numpy.pad(
+            data, (0, paddedSampleSize - sampleSize), 'constant')
         spectrum = numpy.fft.fft(paddedData)
         sample_rate = 44100
         frequencies = numpy.fft.fftfreq(len(spectrum), 1./sample_rate)
@@ -106,8 +120,13 @@ class Component(__base__.Component):
         y[numpy.isinf(y)] = 0
 
         if lastSpectrum is not None:
-            lastSpectrum[y < lastSpectrum] = y[y < lastSpectrum] * smoothConstantDown + lastSpectrum[y < lastSpectrum] * (1 - smoothConstantDown)
-            lastSpectrum[y >= lastSpectrum] = y[y >= lastSpectrum] * smoothConstantUp + lastSpectrum[y >= lastSpectrum] * (1 - smoothConstantUp)
+            lastSpectrum[y < lastSpectrum] = \
+                y[y < lastSpectrum] * smoothConstantDown + \
+                lastSpectrum[y < lastSpectrum] * (1 - smoothConstantDown)
+
+            lastSpectrum[y >= lastSpectrum] = \
+                y[y >= lastSpectrum] * smoothConstantUp + \
+                lastSpectrum[y >= lastSpectrum] * (1 - smoothConstantUp)
         else:
             lastSpectrum = y
 
@@ -120,7 +139,7 @@ class Component(__base__.Component):
         bF = width / 64
         bH = bF / 2
         bQ = bF / 4
-        imTop = Image.new("RGBA", (width, height),(0,0,0,0))
+        imTop = Image.new("RGBA", (width, height), (0, 0, 0, 0))
         draw = ImageDraw.Draw(imTop)
         r, g, b = color
         color2 = (r, g, b, 125)
@@ -128,12 +147,17 @@ class Component(__base__.Component):
         bP = height / 1200
 
         for j in range(0, 63):
-            draw.rectangle((bH + j * bF, vH+bQ, bH + j * bF + bF, vH + bQ - spectrum[j * 4] * bP - bH), fill=color2)
-            draw.rectangle((bH + bQ + j * bF, vH , bH + bQ + j * bF + bH, vH - spectrum[j * 4] * bP), fill=color)
+            draw.rectangle((
+                bH + j * bF, vH+bQ, bH + j * bF + bF, vH + bQ -
+                spectrum[j * 4] * bP - bH), fill=color2)
+
+            draw.rectangle((
+                bH + bQ + j * bF, vH, bH + bQ + j * bF + bH, vH -
+                spectrum[j * 4] * bP), fill=color)
 
         imBottom = imTop.transpose(Image.FLIP_TOP_BOTTOM)
 
-        im = Image.new("RGBA", (width, height),(0,0,0,0))
+        im = Image.new("RGBA", (width, height), (0, 0, 0, 0))
 
         if layout == 0:
             y = 0 - int(height/100*43)
diff --git a/components/text.py b/components/text.py
index 56a9502..6cdc0dd 100644
--- a/components/text.py
+++ b/components/text.py
@@ -25,9 +25,7 @@ class Component(__base__.Component):
         self.yPosition = height / 2 * 1.036
 
         page = uic.loadUi(os.path.join(
-            os.path.dirname(os.path.realpath(__file__)),
-            'text.ui'
-        ))
+            os.path.dirname(os.path.realpath(__file__)), 'text.ui'))
         page.comboBox_textAlign.addItem("Left")
         page.comboBox_textAlign.addItem("Middle")
         page.comboBox_textAlign.addItem("Right")
@@ -61,7 +59,8 @@ class Component(__base__.Component):
         self.fontSize = self.page.spinBox_fontSize.value()
         self.xPosition = self.page.spinBox_xTextAlign.value()
         self.yPosition = self.page.spinBox_yTextAlign.value()
-        self.textColor = self.RGBFromString(self.page.lineEdit_textColor.text())
+        self.textColor = self.RGBFromString(
+            self.page.lineEdit_textColor.text())
         self.parent.drawPreview()
 
     def getXY(self):
@@ -95,14 +94,14 @@ class Component(__base__.Component):
 
     def savePreset(self):
         return {
-                'title': self.title,
-                'titleFont': self.titleFont.toString(),
-                'alignment': self.alignment,
-                'fontSize': self.fontSize,
-                'xPosition': self.xPosition,
-                'yPosition': self.yPosition,
-                'textColor': self.textColor
-                }
+            'title': self.title,
+            'titleFont': self.titleFont.toString(),
+            'alignment': self.alignment,
+            'fontSize': self.fontSize,
+            'xPosition': self.xPosition,
+            'yPosition': self.yPosition,
+            'textColor': self.textColor
+        }
 
     def previewRender(self, previewWorker):
         width = int(previewWorker.core.settings.value('outputWidth'))
diff --git a/components/video.py b/components/video.py
index de91264..67a96dd 100644
--- a/components/video.py
+++ b/components/video.py
@@ -1,12 +1,18 @@
 from PIL import Image, ImageDraw
 from PyQt4 import uic, QtGui, QtCore
-import os, subprocess, threading
+import os
+import subprocess
+import threading
 from queue import PriorityQueue
 from . import __base__
 
+
 class Video:
     '''Video Component Frame-Fetcher'''
-    def __init__(self, ffmpeg, videoPath, width, height, frameRate, chunkSize, parent, loopVideo):
+    def __init__(
+      self, ffmpeg, videoPath, width, height,
+      frameRate, chunkSize, parent, loopVideo):
+
         self.parent = parent
         self.chunkSize = chunkSize
         self.size = (width, height)
@@ -27,15 +33,18 @@ class Video:
             '-filter:v', 'scale='+str(width)+':'+str(height),
             '-vcodec', 'rawvideo', '-',
         ]
-        
+
         self.frameBuffer = PriorityQueue()
         self.frameBuffer.maxsize = int(frameRate)
         self.finishedFrames = {}
-        
-        self.thread = threading.Thread(target=self.fillBuffer, name=self.__doc__)
+
+        self.thread = threading.Thread(
+            target=self.fillBuffer,
+            name=self.__doc__
+        )
         self.thread.daemon = True
         self.thread.start()
-        
+
     def frame(self, num):
         while True:
             if num in self.finishedFrames:
@@ -44,9 +53,12 @@ class Video:
             i, image = self.frameBuffer.get()
             self.finishedFrames[i] = image
             self.frameBuffer.task_done()
-    
-    def fillBuffer(self):        
-        self.pipe = subprocess.Popen(self.command, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL, bufsize=10**8)
+
+    def fillBuffer(self):
+        self.pipe = subprocess.Popen(
+            self.command, stdout=subprocess.PIPE,
+            stderr=subprocess.DEVNULL, bufsize=10**8
+        )
         while True:
             if self.parent.canceled:
                 break
@@ -58,26 +70,29 @@ class Video:
                 continue
 
             self.currentFrame = self.pipe.stdout.read(self.chunkSize)
-            #print('creating frame #%s' % str(self.frameNo))
             if len(self.currentFrame) != 0:
                 self.frameBuffer.put((self.frameNo, self.currentFrame))
                 self.lastFrame = self.currentFrame
 
+
 class Component(__base__.Component):
     '''Video'''
     def widget(self, parent):
         self.parent = parent
         self.settings = parent.settings
-        page = uic.loadUi(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'video.ui'))
+        page = uic.loadUi(os.path.join(
+            os.path.dirname(os.path.realpath(__file__)),
+            'video.ui'
+        ))
         self.videoPath = ''
         self.x = 0
         self.y = 0
         self.loopVideo = False
-        
+
         page.lineEdit_video.textChanged.connect(self.update)
         page.pushButton_video.clicked.connect(self.pickVideo)
         page.checkBox_loop.stateChanged.connect(self.update)
-        
+
         self.page = page
         return page
 
@@ -85,46 +100,50 @@ class Component(__base__.Component):
         self.videoPath = self.page.lineEdit_video.text()
         self.loopVideo = self.page.checkBox_loop.isChecked()
         self.parent.drawPreview()
-        
+
     def previewRender(self, previewWorker):
         width = int(previewWorker.core.settings.value('outputWidth'))
         height = int(previewWorker.core.settings.value('outputHeight'))
         self.chunkSize = 4*width*height
         frame = self.getPreviewFrame(width, height)
         if not frame:
-            return Image.new("RGBA", (width, height),(0,0,0,0))
+            return Image.new("RGBA", (width, height), (0, 0, 0, 0))
         else:
             return frame
-    
+
     def preFrameRender(self, **kwargs):
         super().preFrameRender(**kwargs)
         width = int(self.worker.core.settings.value('outputWidth'))
         height = int(self.worker.core.settings.value('outputHeight'))
         self.chunkSize = 4*width*height
-        self.video = Video(self.parent.core.FFMPEG_BIN, self.videoPath,
+        self.video = Video(
+            self.parent.core.FFMPEG_BIN, self.videoPath,
             width, height, self.settings.value("outputFrameRate"),
-            self.chunkSize, self.parent, self.loopVideo)
-        
+            self.chunkSize, self.parent, self.loopVideo
+        )
+
     def frameRender(self, moduleNo, arrayNo, frameNo):
         return self.video.frame(frameNo)
 
     def loadPreset(self, pr):
         self.page.lineEdit_video.setText(pr['video'])
-        
+
     def savePreset(self):
         return {
-            'video' : self.videoPath,
+            'video': self.videoPath,
         }
-        
+
     def pickVideo(self):
         imgDir = self.settings.value("backgroundDir", os.path.expanduser("~"))
-        filename = QtGui.QFileDialog.getOpenFileName(self.page,
-            "Choose Video", imgDir, "Video Files (*.mp4 *.mov)")
+        filename = QtGui.QFileDialog.getOpenFileName(
+            self.page, "Choose Video",
+            imgDir, "Video Files (*.mp4 *.mov)"
+        )
         if filename: 
             self.settings.setValue("backgroundDir", os.path.dirname(filename))
             self.page.lineEdit_video.setText(filename)
             self.update()
-    
+
     def getPreviewFrame(self, width, height):
         if not self.videoPath or not os.path.exists(self.videoPath):
             return
@@ -139,7 +158,10 @@ class Component(__base__.Component):
             '-ss', '90',
             '-vframes', '1',
         ]
-        pipe = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL, bufsize=10**8)
+        pipe = subprocess.Popen(
+            command, stdout=subprocess.PIPE,
+            stderr=subprocess.DEVNULL, bufsize=10**8
+        )
         byteFrame = pipe.stdout.read(self.chunkSize)
         image = Image.frombytes('RGBA', (width, height), byteFrame)
         pipe.stdout.close()