code: def argstostr(self):
          "Query string arguments are bytes in Python3. This function Convert bytes to string with env.encoding(default to utf-8)."
          self.args = dict((k, self._tostr(v)) for k,v in self.args.items())
          return self.argf argstostr(self):
          "Query string arguments are bytes in Python3. This function Convert bytes to string with env.encoding(default to utf-8)."
          self.args = dict((k, self._tostr(v)) for k,v in self.args.items())
          return self.args
docs: Query string arguments are bytes in Python3. This function Convert bytes to string with env.encoding(default to utf-8).