fix linter errors and warnings

copycat/copycat.py

@@ -15,6 +15,7 @@ from temperature import temperature
 from coderack import coderack
 from coderackPressure import coderackPressures
 
+
 def updateEverything():
     workspace.updateEverything()
     coderack.updateCodelets()
@@ -53,6 +54,7 @@ def runTrial():
     for answer, count in answers.iteritems():
         print '%s:%d' % (answer, count)
 
+
 def run(initial, modified, target):
     workspace.setStrings(initial, modified, target)
     runTrial()