No module named 'torch.backends.mps'

The error message "No module named 'torch.backends.mps'" suggests that the 'torch.backends.mps' module is missing from your environment.

This module is part of the PyTorch library and is used for multi-process service (MPS) support. However, not all versions or installations of PyTorch include this module.

To resolve this issue, you can try updating PyTorch to the latest version by running the following command:

pip install --upgrade torch

If you still encounter the same error after updating PyTorch, it's possible that the specific functionality you're trying to use is not available in your current PyTorch installation. In that case, you might need to modify your code or try a different approach to achieve your desired outcome.