Files
pytorch/torch/_compile.py
Animesh Jain 0444f9f85b [dynamo] Reland #104317 - Lazy disable_dynamo API out-of-dynamo (#104664)
Internal failed because of torch.deploy issues with disable_dynamo in fx/* and _jit/* files. Removing disable_dynamo for both. Added a comment in the code.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/104664
Approved by: https://github.com/wconstab
2023-07-06 00:48:02 +00:00

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Python

"""
APIs related to torch.compile which lazily import torch._dynamo to avoid
circular dependencies.
"""
import functools
def _disable_dynamo(fn=None, recursive=True):
"""
This API should be only used inside torch, external users should still use
torch._dynamo.disable. The main goal of this API is to avoid circular
imports issues that is common while using _dynamo.disable inside torch
itself.
This API avoids it by lazily importing torch._dynamo from the import time to
the invocation of the decorated function.
"""
if fn is not None:
@functools.wraps(fn)
def inner(*args, **kwargs):
import torch._dynamo
return torch._dynamo.disable(fn, recursive)(*args, **kwargs)
return inner
else:
# decorator usage like @_disable_dynamo(recursive=False). The resulting
# object expects the original decorated function as the arg.
return functools.partial(_disable_dynamo, recursive=recursive)