code: def _escapify(qstring):
      
  
      text = ''
      for c in qstring:
          if c in __escaped:
              text += '\\' + c
          elif ord(c) >= 0x20 and ord(c) < 0x7F:
              text += c
          else:
              text += '\\%03d' % ord(c)
      return text
docs: Escape the characters in a quoted string which need it.
  
      @param qstring: the string
      @type qstring: string
      @returns: the escaped string
      @rtype: string