def _check_redirect_uri(self):
        if self.redirect_uri is None:
            raise MissingRedirectURI('No redirect_uri to send response.')
        if not absolute_http_url_re.match(self.redirect_uri):
            raise MissingRedirectURI('Absolute redirect_uri required.')
Raise MissingRedirectURI if no redirect_uri is available.
dataset/ETHPy150Open hiidef/oauth2app/oauth2app/authorize.py/Authorizer._check_redirect_uri