* Automatically applies ruff rule 401. Turns loops into equivalent list comprehensions which are faster and do not leak the scope of the loop variables.
* list comprehensions not only often have better typing, but are 50+% faster than for loops on overhead. They also preserve length information etc and are better for the interpreter to optimize.
* Manually went back and made mypy happy after the change.
* Also fixed style lints in files covered by flake8 but not by pyfmt
Pull Request resolved: https://github.com/pytorch/pytorch/pull/140980
Approved by: https://github.com/justinchuby, https://github.com/malfet
Part of #134054.
This corresponds to the pytorch mypy changes from D61493706. Updating takes so
long and touches so many files that it's impossible to land as a whole without conflicting with some other intermediate change.
So landing these 'type: ignore' for pytorch in advance of them actually being needed.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/134202
Approved by: https://github.com/Skylion007
Changed the API of `pipeline()` to take microbatch instead of full batch as example args.
Main purpose is to:
- make this API more atomic;
- decouple tracing frontend from runtime info like `num_chunks`.
Side effects:
- Creates opportunity for varying `num_chunks` of schedules with the same `pipe` object.
- User has to create example microbatch input.
- Chunk spec stuff are now all moved to runtime side.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/128163
Approved by: https://github.com/H-Huang
