## Description of the problem, including code/CLI snippet in section https://python-gitlab.readthedocs.io/en/master/gl_objects/users.html#id2 replace ":" by "," : `user.customattributes.set('role': 'QA')` by `user.customattributes.set('role', 'QA')` - python-gitlab version: 1.5.1 - API version you are using (v3/v4): v4 - Gitlab server version (or gitlab.com): 11.4.4