401     def add_header(self, key, val):  argument
405     def add_unredirected_header(self, key, val):  argument
529     def _open(self, req, data=None):  argument
642     def http_error_default(self, req, fp, code, msg, hdrs):  argument
653     def redirect_request(self, req, fp, code, msg, headers, newurl):  argument
691     def http_error_302(self, req, fp, code, msg, headers):  argument
806     def proxy_open(self, req, proxy, type):  argument
986     def http_error_auth_reqed(self, authreq, host, req, headers):  argument
1012     def retry_http_basic_auth(self, host, req, realm):  argument
1024     def http_request(self, req):  argument
1037     def http_response(self, req, response):  argument
1054     def http_error_401(self, req, fp, code, msg, headers):  argument
1065     def http_error_407(self, req, fp, code, msg, headers):  argument
1103     def http_error_auth_reqed(self, auth_header, host, req, headers):  argument
1123     def retry_http_digest_auth(self, req, auth):  argument
1146     def get_authorization(self, req, chal):  argument
1236     def http_error_401(self, req, fp, code, msg, headers):  argument
1249     def http_error_407(self, req, fp, code, msg, headers):  argument
1307     def do_open(self, http_class, req, **http_conn_args):  argument
1376     def http_open(self, req):  argument
1390         def https_open(self, req):  argument
1417     def unknown_open(self, req):  argument
1476     def file_open(self, req):  argument
1498     def open_local_file(self, req):  argument
1532     def ftp_open(self, req):  argument
1642     def data_open(self, req):  argument