Page.authorship() calls https://xtools.wmcloud.org/authorship to get authorship data bur any call fails with HTTPError('403 Client Error: Forbidden for url: https://xtools.wmcloud.org/authorship/... and the response page says: For performance reasons, the requested data is only available to logged-in users.
Therefore:
- Implement (oauth) login for xtools
- Skip doctests in meantime until login is implemented