The Pywikibot-OAuth GSOC code has been merged, with unit tests regularly testing test.wikipedia, test.orain, and beta cluster sites en.wp and zh.wp.
On both the beta cluster sites, tests are regularly encountering failures which appear to be T106066: Don't show "Nonce already used" error on memcache failure
https://travis-ci.org/wikimedia/pywikibot-core/jobs/75715387#L910