old_contents: import sys
  from ..util.singleton import Singleton
  from .color import Color
  from .level import Level
  
  class Messenger(object):
      __metaclass__ = Singleton
  
      def __init__(self, level = Level.LOWINFO):
          self.set_level(level)
  
      def set_level(self, level):
          self._level = level
  
      def log(self, level, message):
          if (level >= self._level):
              print('%s%s%s' % (self._color(level), message, self._reset()))
  
      def debug(self, message):
          self.log(Level.DEBUG, message)
  
      def lowinfo(self, message):
          self.log(Level.LOWINFO, message)
  
      def info(self, message):
          self.log(Level.INFO, message)
  
      def warning(self, message):
          self.log(Level.WARNING, message)
  
      def error(self, message):
          self.log(Level.ERROR, message)
      
      def _color(self, level):
          '''
          Get a color (terminal escape sequence) according to a level.
          '''
          if not sys.stdout.isatty():
              return ''
          elif level < Level.DEBUG:
              return ''
          elif Level.DEBUG <= level < Level.LOWINFO:
              return Color.YELLOW
          elif Level.LOWINFO <= level < Level.INFO:
              return Color.BLUE
          elif Level.INFO <= level < Level.WARNING:
              return Color.GREEN
          elif Level.WARNING <= level < Level.ERROR:
              return Color.MAGENTA
          elif Level.ERROR <= level:
              return Color.RED
  
      def _reset(self):
          '''
          Get a reset color (terminal escape sequence).
          '''
          if not sys.stdout.isatty():
              return ''
          else:
              return Color.RESET
  
new_contents: import sys
  from ..util.singleton import Singleton
  from .color import Color
  from .level import Level
  
  class Messenger(object):
      __metaclass__ = Singleton
  
      def __init__(self, level = Level.LOWINFO):
          self.set_level(level)
  
      def set_level(self, level):
          self._level = level
  
      def log(self, level, message):
          if (level >= self._level):
              print('%s%s%s' % (self._color(level), message, self._reset()))
  
      def debug(self, message):
          self.log(Level.DEBUG, message)
  
      def lowinfo(self, message):
          self.log(Level.LOWINFO, message)
  
      def info(self, message):
          self.log(Level.INFO, message)
  
      def warning(self, message):
          self.log(Level.WARNING, message)
  
      def error(self, message):
          self.log(Level.ERROR, message)
  
      def _color(self, level):
          '''
          Get a color (terminal escape sequence) according to a level.
          '''
          if not sys.stdout.isatty():
              return ''
          elif level < Level.DEBUG:
              return ''
          elif Level.DEBUG <= level < Level.LOWINFO:
              return Color.YELLOW
          elif Level.LOWINFO <= level < Level.INFO:
              return Color.BLUE
          elif Level.INFO <= level < Level.WARNING:
              return Color.GREEN
          elif Level.WARNING <= level < Level.ERROR:
              return Color.MAGENTA
          elif Level.ERROR <= level:
              return Color.RED
  
      def _reset(self):
          '''
          Get a reset color (terminal escape sequence).
          '''
          if not sys.stdout.isatty():
              return ''
          else:
              return Color.RESET
  
subject: Fix whitespace error