Error in checking torchvision.__version__ with double digits in util/misc.py

[mfatiho]

  Traceback (most recent call last):
    File "/home/mfo/Projects/crowd-counting-gui/demo_gui.py", line 16, in <module>
      from models import build_model
    File "/home/mfo/Projects/crowd-counting-gui/CrowdCounting-P2PNet/models/__init__.py", line 1, in <module>
      from .p2pnet import build
    File "/home/mfo/Projects/crowd-counting-gui/CrowdCounting-P2PNet/models/p2pnet.py", line 5, in <module>
      from util.misc import (NestedTensor, nested_tensor_from_tensor_list,
    File "/home/mfo/Projects/crowd-counting-gui/CrowdCounting-P2PNet/util/misc.py", line 26, in <module>
      from torchvision.ops import _new_empty_tensor
  ImportError: cannot import name '_new_empty_tensor' from 'torchvision.ops' (/home/mfo/miniconda3/envs/p2pnet/lib/python3.9/site-packages/torchvision/ops/__init__.py)

[KunMengcode]

@mfatiho This issue is related to the version of Torchvision, and I have not yet explored the actual details. But I solved it. In the util/misc.py file, search for torchvision.__version__[:3] A total of two locations can be found, changing <0.7 to >0.7