jayvdb added subscribers: Nemo_bis, MZMcBride, jayvdb. jayvdb added a comment.

In the Wikimedia family definitions for pywikibot, these are the 'obsolete' entries which map to another code. i.e. dk.wikipedia.org -> da.wikipedia.org, etc

'dk': 'da', 'jp': 'ja', 'mo': 'ro', 'nl_nds': 'nl-nds', # miss-spelling 'nb': 'no' 'minnan': 'zh-min-nan', 'zh-cn': 'zh' 'zh-tw': 'zh',

For each, the purpose of each needs to be established. There may be hints in the original commit, but it will be easier if some of the old hands help explain why these sub-domains existed. Specifically we need to establish whether the old code : a) is present in current wiki pages are interwiki links (high priority) b) was ever a valid interwiki link, and therefore will exist in old revisions (lower priority) c) was the mapping due to a MediaWiki language change, or only a Wikimedia subdomain choice. i.e. was "nl_nds" a language code in MediaWiki in the past, but has been updated in the software?

TASK DETAIL https://phabricator.wikimedia.org/T74674

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To: jayvdb Cc: pywikipedia-bugs, XZise, JAnD, Mpaa, Kronf, Nemo_bis, MZMcBride, jayvdb