rtd ist not following language code update for Chinese

[Flohack74]

Details

• Try to configure Chinese traditional and simplified languages

Expected Result

• The selection should be zh_Hans and zh_Hant

Actual Result

• Selection is zh_CN and zh_TW

See https://code.djangoproject.com/ticket/18419 for example. zh_CN is no longer common sense, and we got issues with linking our Weblate to rtd, since Weblate does not support zh_CN anymore.

[RichardLitt]

@Flohack74 Can this be closed, now?

[Flohack74]

Not really. We reverted our patch because otherwise we could no longer feed transtlations into readthedocs I assume. It seems that at a certain point Django was switched to the new codes, and new language po files fill always be named like that.

Please evaluate the situation here, maybe allowing support for both naming schemes.

[humitos]

I suppose we should check some things here:

• our current translations under transifex
• this change is supported by Sphinx
• old URLs that point to zn_CN

[agjohnson]

Sounds like we need to update our language selector to add the new identifiers for chinese lanuages? We can leave the old identifiers probably? Optionally, we can hide the deprecated identifier for new projects.

Sphinx should be agnostic to this.

I imagine a PR should be fairly quick to put together for this.

[Flohack74]

Yeah I think thats the best way, stay compatible with whats there, but try to offer only the new shortcuts for new stuff.