Automated fixes to put imports that are only used in type hints into TYPE_CHECKING imports. This also enables the RUFF TCH rules which will automatically apply autofixes to move imports in and out of TYPE_CHECKING blocks as needed in the future, this will make the initial PyTorch import faster and will reduce cyclic dependencies.
Co-authored-by: Xuehai Pan <XuehaiPan@pku.edu.cn>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/127688
Approved by: https://github.com/XuehaiPan, https://github.com/ezyang, https://github.com/malfet
By moving AsyncCompile to its own file, we can import codecache without running the side effects of AsyncCompile. This will be important for AOTAutogradCaching, where we want to share some implementation details with codecache.py without spawning new processes.
To conservatively maintain the same behavior elsewhere, every time we import codecache, I've added an import to torch._inductor.async_compile (except in autograd_cache.py, where the explicit goal is to not do this)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/127235
Approved by: https://github.com/aorenste, https://github.com/oulgen, https://github.com/masnesral
