pytorch/torch/autograd/variable.py
Xuehai Pan b005ec62b9 [BE] Remove dependency on six and future (#94709)
Remove the Python 2 and 3 compatibility library [six](https://pypi.org/project/six) and [future](https://pypi.org/project/future) and `torch._six`. We only support Python 3.8+ now. It's time to retire them.

Pull Request resolved: https://github.com/pytorch/pytorch/pull/94709
Approved by: https://github.com/malfet, https://github.com/Skylion007
2023-02-14 09:14:14 +00:00

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Python

import torch
from torch._C import _ImperativeEngine as ImperativeEngine
__all__ = ["VariableMeta", "Variable"]
class VariableMeta(type):
def __instancecheck__(cls, other):
return isinstance(other, torch.Tensor)
class Variable(torch._C._LegacyVariableBase, metaclass=VariableMeta): # type: ignore[misc]
_execution_engine = ImperativeEngine()