def authorize_redirect(self, callback_uri=None):
        if callback_uri and getattr(self, "_OAUTH_NO_CALLBACKS", False):
            raise Exception("This service does not support oauth_callback")
        http = httpclient.AsyncHTTPClient()
        http.fetch(self._oauth_request_token_url(), self.async_callback(
            self._on_request_token, self._OAUTH_AUTHORIZE_URL, callback_uri))
Redirects the user to obtain OAuth authorization for this service.
dataset/ETHPy150Open IanLewis/kay/kay/ext/gaema/auth.py/OAuthMixin.authorize_redirect