docs: def checkPath(filename):
      """
      Check the given path, printing out any warnings detected.
  
      @return: the number of warnings printed
      """
      try:
          return check(file(filename, 'U').read() + '\n', filename)
      except IOError, msg:
          sys.stderr.write("%s: %s\n" % (filename, msg.args[1]))
          return 1