http://wiki-sv.genealogy.net/Huvudsida fails, but http://wiki-sv.genealogy.net/w/api.php?action=query&meta=siteinfo works
generate_family_file.py should be able to create a family class, at least if using the API; i.e. T101843: generate_family_file.py: support api urls
And APISite should be able to initialise, even if some of the methods do not work.
T103470: Many Battlestar wikis are broken also has wikis which can be partially accessed via the API even when the front page is broken.