flake8 compliance (except for PyQt5Gui)

photobooth/camera/CameraDummy.py

@@ -42,6 +42,7 @@ class X:
 
         return x
 
+
 class Y:
 
     def eval(self, x, y):
@@ -82,6 +83,7 @@ class Times:
 
         return self.lhs.eval(x, y) * self.rhs.eval(x, y)
 
+
 def buildExpr(prob=0.99):
 
     if random.random() < prob:
@@ -89,6 +91,7 @@ def buildExpr(prob = 0.99):
     else:
         return random.choice([X, Y])()
 
+
 def plotIntensity(exp, pixelsPerUnit=150):
 
     canvasWidth = 2 * pixelsPerUnit + 1
@@ -107,6 +110,7 @@ def plotIntensity(exp, pixelsPerUnit = 150):
 
     return canvas
 
+
 def plotColor(redExp, greenExp, blueExp, pixelsPerUnit=150):
 
     redPlane = plotIntensity(redExp, pixelsPerUnit)