code: def to_url(self):
          
          base_url = urlparse(self.url)
  
          if PY3:
              query = parse_qs(base_url.query)
              for k, v in self.items():
                  query.setdefault(k, []).append(to_utf8_optional_iterator(v))
              scheme = base_url.scheme
              netloc = base_url.netloc
              path = base_url.path
              params = base_url.params
              fragment = base_url.fragment
          else:
              query = parse_qs(to_utf8(base_url.query))
              for k, v in self.items():
                  query.setdefault(to_utf8(k), []).append(to_utf8_optional_iterator(v))
              scheme = to_utf8(base_url.scheme)
              netloc = to_utf8(base_url.netloc)
              path = to_utf8(base_url.path)
              params = to_utf8(base_url.params)
              fragment = to_utf8(base_url.fragment)
  
          url = (scheme, netloc, path, params, urlencode(query, True), fragment)
          return urlunparse(url)
docs: Serialize as a URL for a GET request.