Which site?

There is no langlinks entry in api result if the page hasn't langlinks. Might be the api behaviour has been changed.
See https://en.wikipedia.org/w/api.php?action=query&titles=13th%20Regiment%20Armory&prop=langlinks

I found two pages at en-wiki which doesn't has language links and cause this failure ( there are other pages at zh-wiki):

• https://en.wikipedia.org/wiki/13th_Regiment_Armory
• https://en.wikipedia.org/wiki/14th_Regiment_Armory

Seems all tests are failing now due to this.

Again in https://api.travis-ci.org/v3/job/621982242/log.txt

This is Python 3.8 only, isn't it?

Seems Python 2.7 is preinstalled on Mac OS
https://docs.python.org/3/using/mac.html

In T240058#5720129, @Dvorapa wrote:

For me on my PC, the redirect always goes to /en. Perhaps assertIn(r.data.url, ['https://www.gandi.net/en', 'https://www.gandi.net/en-US'])?

unfortunately this behaviour isn't deterministic:

unfortunately this behaviour isn't deterministic:

Done already, see https://gerrit.wikimedia.org/r/#/c/pywikibot/core/+/538244/

See https://gerrit.wikimedia.org/r/plugins/gitiles/pywikibot/core/+/e44958427050500a0b32d365d4f9c9924b4d7f29/docs/conf.py
line 362

Is I figured out toggling this page depends on the bot option not the bot itself. As I can see the bots are reverting themselves. The reason is that the bot with double action option follows the redirect chain whereas the broken action option tries to restore the broken link by restoring the move target but it does not follow the redirect chain (what it should do here).

In T239539#5703449, @Zoranzoki21 wrote:

URL no works for me, it shows 404.. Why?

There are still some other tests failing:

Probably solved with https://gerrit.wikimedia.org/r/#/c/pywikibot/core/+/525179/
Otherwise reopen this task.

Decreasing maxlag parameter may lead to decreasing performance because some queries are probably waiting for a lower server lag

Seems there is not L10N object found in referencesSections dict for the given site. Which site are you using?

Same for tests.site_tests.TestPagePreloading testMethod=test_preload_templates