pytorch

491ee70e - Avoid `collections` deprecation warning (#72239)

Avoid `collections` deprecation warning (#72239) Summary: Avoids the following deprecation warning: ```python loss.backward(*args, **kwargs) /usr/local/lib/python3.7/dist-packages/torch/tensor.py:245: in backward torch.autograd.backward(self, gradient, retain_graph, create_graph, inputs=inputs) /usr/local/lib/python3.7/dist-packages/torch/autograd/__init__.py:147: in backward allow_unreachable=True, accumulate_grad=True) # allow_unreachable flag /usr/local/lib/python3.7/dist-packages/torch/autograd/function.py:89: in apply return self._forward_cls.backward(self, *args) # type: ignore /usr/local/lib/python3.7/dist-packages/torch/nn/parallel/_functions.py:34: in backward return (None,) + ReduceAddCoalesced.apply(ctx.input_device, ctx.num_inputs, *grad_outputs) /usr/local/lib/python3.7/dist-packages/torch/nn/parallel/_functions.py:45: in forward return comm.reduce_add_coalesced(grads_, destination) /usr/local/lib/python3.7/dist-packages/torch/nn/parallel/comm.py:143: in reduce_add_coalesced flat_result = reduce_add(flat_tensors, destination) /usr/local/lib/python3.7/dist-packages/torch/nn/parallel/comm.py:96: in reduce_add nccl.reduce(inputs, output=result, root=root_index) /usr/local/lib/python3.7/dist-packages/torch/cuda/nccl.py:69: in reduce _check_sequence_type(inputs) /usr/local/lib/python3.7/dist-packages/torch/cuda/nccl.py:48: in _check_sequence_type if not isinstance(inputs, collections.Container) or isinstance(inputs, torch.Tensor): _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ name = 'Container' def __getattr__(name): # For backwards compatibility, continue to make the collections ABCs # through Python 3.6 available through the collections module. # Note, no new collections ABCs were added in Python 3.7 if name in _collections_abc.__all__: obj = getattr(_collections_abc, name) import warnings warnings.warn("Using or importing the ABCs from 'collections' instead " "of from 'collections.abc' is deprecated since Python 3.3," "and in 3.9 it will stop working", > DeprecationWarning, stacklevel=2) E DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated since Python 3.3,and in 3.9 it will stop working /usr/lib/python3.7/collections/__init__.py:52: DeprecationWarning ``` Pull Request resolved: https://github.com/pytorch/pytorch/pull/72239 Reviewed By: ngimel Differential Revision: D34387815 Pulled By: mruberry fbshipit-source-id: 30c9b4fe518351bc9a6f211269e27ee3ab73a13c (cherry picked from commit 1f68cdfac5875b56893b6b7ab3e8db96897f128b)