old_contents: import os
  
  from tailor.types.location import Location
  
  
  class Printer:
  
      def __init__(self, filepath):
          self.__filepath = os.path.abspath(filepath)
  
      def warn(self, warn_msg, ctx=None, loc=Location(1, 1)):
          self.__print('warning', warn_msg, ctx, loc)
  
      def error(self, err_msg, ctx=None, loc=Location(1, 1)):
          self.__print('error', err_msg, ctx, loc)
  
      def __print(self, classification, msg, ctx, loc):
          if ctx is not None:
              print(self.__filepath + ':' + str(ctx.start.line) + ':' +
                    str(ctx.start.column + 1) + ': ' +
                    classification + ': ' + msg)
          else:
              print(self.__filepath + ':' + str(loc.line) + ':' +
                    str(loc.column) + ': ' + classification + ': ' + msg)
  
new_contents: import os
  
  from tailor.types.location import Location
  
  
  class Printer:
  
      def __init__(self, filepath):
          self.__filepath = os.path.abspath(filepath)
  
      def warn(self, warn_msg, ctx=None, loc=Location(1, 1)):
          self.__print('warning', warn_msg, ctx, loc)
  
      def error(self, err_msg, ctx=None, loc=Location(1, 1)):
          self.__print('error', err_msg, ctx, loc)
  
      def __print(self, classification, msg, ctx, loc):
          if ctx is not None:
              print(self.__filepath + ':' + str(ctx.start.line) + ':' +
                    str(ctx.start.column + 1) + ': ' + classification +
                    ': ' + msg)
          else:
              print(self.__filepath + ':' + str(loc.line) + ':' +
                    str(loc.column) + ': ' + classification + ': ' + msg)
  
subject: Fix whitepsace