ahh hmm, now I come back and look at this with fresh eyes, the names are a little different. When you browse to https://zh.wikipedia.org/wiki/花鄉東橋站 , you get redirected (301) to https://zh.wikipedia.org/wiki/花乡东桥站 . It's not a mediawiki redirect, I don't think. Not sure how it's set up, but I guess that's the issue here. edit: seems this is a mechanism in Chinese wikipedia to convert between simplified and traditional renderings; however that's implemented, it doesn't work at the level of API requests. So there's probably not much that can be done here. I'll close the issue.

mwclient 0.11.0 is now released with this fixed on that side. It also comes with four years of other changes, so please test carefully before deploying :)

mwclient-side fix is merged and I intend to do a new mwclient release tomorrow, if nothing else comes up, and none of the other maintainers can think of a reason why not.

As one of the new(ish) maintainers of mwclient - thanks for alerting us to this (see https://github.com/mwclient/mwclient/issues/344). We are currently trying to pull together a 0.11 release of mwclient, but it's taking a bit of time as we're all spare time maintainers. We'll definitely try and resolve this as part of that release.

Just in case anyone else runs across the same deprecation messages and winds up here looking for help: yeah, upgrading Requests to 2.0.6 avoids the problem (once we lined up all the relevant ducks to make that port work properly).