old_contents: import time
  
  
  class SimpleTimer(object):
  
      def __init__(self):
          self.reset()
  
      def now(self):
          return time.time()
  
      def elapsed(self):
          return self.now() - self.t0
  
      def reset(self):
          self.t0 = self.now()
  
  
  class FPSCounter(object):
  
      def __init__(self):
          self.averageComputer = MovingAverageComputer()
          self.printToConsole = False
  
      def tick(self):
          newAverage =  self.averageComputer.timer.elapsed() > self.averageComputer.timeWindow
          self.averageComputer.update(1)
          if newAverage and self.printToConsole:
              print 'fps:', self.getAverageFPS()
  
      def getAverageFPS(self):
          return self.averageComputer.getAverage()
  
  
  class AverageComputer(object):
  
      def __init__(self):
          self.timer = SimpleTimer()
          self.quantity = 0.0
  
      def update(self, quantitySinceLastUpdate):
          self.quantity += quantitySinceLastUpdate
  
      def getAverage(self):
          return self.quantity / self.timer.elapsed()
  
      def reset(self):
          self.quantity = 0.0
          self.timer.reset()
  
  
  class MovingAverageComputer(object):
  
      def __init__(self):
          self.timer = SimpleTimer()
          self.alpha = 0.9
          self.timeWindow = 1.0
          self.average = 0.0
          self.quantityThisWindow = 0.0
  
      def update(self, quantitySinceLastUpdate):
          self.quantityThisWindow += quantitySinceLastUpdate
          self._updateAverage()
  
      def getAverage(self):
          self._updateAverage()
          return self.average
  
      def _updateAverage(self):
  
          elapsedTime = self.timer.elapsed()
  
          if elapsedTime > self.timeWindow:
  
              # compute FPS for this time window
              averageThisWindow = self.quantityThisWindow / elapsedTime
  
              # update moving average
              self.average = self.alpha * averageThisWindow + (1.0 - self.alpha) * self.average
  
              # reset
              self.timer.reset()
              self.quantityThisWindow = 0.0
  
new_contents: import time
  
  
  class SimpleTimer(object):
  
      def __init__(self):
          self.reset()
  
      def now(self):
          return time.time()
  
      def elapsed(self):
          return self.now() - self.t0
  
      def reset(self):
          self.t0 = self.now()
  
  
  class FPSCounter(object):
  
      def __init__(self):
          self.averageComputer = MovingAverageComputer()
          self.printToConsole = False
  
      def tick(self):
          newAverage =  self.averageComputer.timer.elapsed() > self.averageComputer.timeWindow
          self.averageComputer.update(1)
          if newAverage and self.printToConsole:
              print('fps:', self.getAverageFPS())
  
      def getAverageFPS(self):
          return self.averageComputer.getAverage()
  
  
  class AverageComputer(object):
  
      def __init__(self):
          self.timer = SimpleTimer()
          self.quantity = 0.0
  
      def update(self, quantitySinceLastUpdate):
          self.quantity += quantitySinceLastUpdate
  
      def getAverage(self):
          return self.quantity / self.timer.elapsed()
  
      def reset(self):
          self.quantity = 0.0
          self.timer.reset()
  
  
  class MovingAverageComputer(object):
  
      def __init__(self):
          self.timer = SimpleTimer()
          self.alpha = 0.9
          self.timeWindow = 1.0
          self.average = 0.0
          self.quantityThisWindow = 0.0
  
      def update(self, quantitySinceLastUpdate):
          self.quantityThisWindow += quantitySinceLastUpdate
          self._updateAverage()
  
      def getAverage(self):
          self._updateAverage()
          return self.average
  
      def _updateAverage(self):
  
          elapsedTime = self.timer.elapsed()
  
          if elapsedTime > self.timeWindow:
  
              # compute FPS for this time window
              averageThisWindow = self.quantityThisWindow / elapsedTime
  
              # update moving average
              self.average = self.alpha * averageThisWindow + (1.0 - self.alpha) * self.average
  
              # reset
              self.timer.reset()
              self.quantityThisWindow = 0.0
  
subject: fix print statement python 2to3 conversion