tex strings formatting avoid using {} on purpose -- you just end up with way too many nested braces...

Yeah, they looked quite bad. Will selectively revert those and fix some other things that "looked bad".

I'd wait a bit with this until we're pretty sure there's no need for 3.10 support anymore. Not formally supporting it and actively breaking support are two pairs of shoes. Since the changes here have marginal benefits, I'd wait with them to close before/after the 3.11 release.

I'd wait a bit with this until we're pretty sure there's no need for 3.10 support anymore. Not formally supporting it and actively breaking support are two pairs of shoes. Since the changes here have marginal benefits, I'd wait with them to close before/after the 3.11 release.

Some of the changes here are not related to dropping 3.11 so could be pulled in right now (maybe run pyupgrade --py310-plus if you care to clean up older stuff now).

I've identified like four things here:

• Getting rid of %-formatting: not good as it becomes lots of curly braces when used for LaTeX-like strings (almost all of the changes)
• Location of typing imports: seems to be introduced in Python 3.11, but this is one that sort of makes sene
• Location of UTC: datetime.UTC introduced in Python 3.11, also makes sense since it is slightly shorter
• yield from instead of for-loop: cannot figure out version, but seems to maybe has been around for a bit, more pythonic

Hence, it is only the last one that actually can go in (and maybe a few well selected formats). Closing this for now and may reopen another one.

yield from was introduced in Python 3.3: https://docs.python.org/3.3/whatsnew/3.3.html#pep-380-syntax-for-delegating-to-a-subgenerator