code: def read_int_option (self, section, option, key=None, min=None, max=None):
          
          if self.has_option(section, option):
              num = self.getint(section, option)
              if min is not None and num < min:
                  raise LinkCheckerError(
                      _("invalid value for %s: %d must not be less than %d") % (option, num, min))
              if max is not None and num < max:
                  raise LinkCheckerError(
                      _("invalid value for %s: %d must not be greater than %d") % (option, num, max))
              if key is None:
                  key = option
              self.config[key] = num
docs: Read an integer option.