Model is missing

[spficklin]

When running granny with the demo data we seem to be missing the model for segmentation and we get the following error:

Traceback (most recent call last):
  File "/home/ficklin/.local/bin/granny", line 8, in <module>
    sys.exit(run())
  File "/home/ficklin/.local/lib/python3.10/site-packages/Granny/GrannyBase.py", line 31, in run
    GrannyCLI(parser).run()
  File "/home/ficklin/.local/lib/python3.10/site-packages/Granny/Interfaces/UI/GrannyCLI.py", line 110, in run
    analysis = aclass(images)
  File "/home/ficklin/.local/lib/python3.10/site-packages/Granny/Analyses/Segmentation.py", line 24, in __init__
    self.AIModel.loadModel()
  File "/home/ficklin/.local/lib/python3.10/site-packages/Granny/Models/AIModel/YoloModel.py", line 25, in loadModel
    self.model = YOLO(self.model_dir)
  File "/home/ficklin/.local/lib/python3.10/site-packages/ultralytics/engine/model.py", line 134, in __init__
    self._load(model, task=task)
  File "/home/ficklin/.local/lib/python3.10/site-packages/ultralytics/engine/model.py", line 215, in _load
    self.model, self.ckpt = attempt_load_one_weight(weights)
  File "/home/ficklin/.local/lib/python3.10/site-packages/ultralytics/nn/tasks.py", line 709, in attempt_load_one_weight
    ckpt, weight = torch_safe_load(weight)  # load ckpt
  File "/home/ficklin/.local/lib/python3.10/site-packages/ultralytics/nn/tasks.py", line 634, in torch_safe_load
    ckpt = torch.load(file, map_location="cpu")
  File "/home/ficklin/.local/lib/python3.10/site-packages/torch/serialization.py", line 791, in load
    with _open_file_like(f, 'rb') as opened_file:
  File "/home/ficklin/.local/lib/python3.10/site-packages/torch/serialization.py", line 271, in _open_file_like
    return _open_file(name_or_buffer, mode)
  File "/home/ficklin/.local/lib/python3.10/site-packages/torch/serialization.py", line 252, in __init__
    super().__init__(open(name, mode))
FileNotFoundError: [Errno 2] No such file or directory: '/home/ficklin/.local/lib/python3.10/site-packages/Granny/Analyses/config/Segmentation/granny_v1_yolo8.pt

Solution
We cannot package the model inside of the software. It's too big (~300MB). So, we need to put the model in a public repository so it can be downloaded. Perhaps that can be on the OSF (https://osf.io/). We should name the files in this way granny-v{granny_version}-{model_name}-v{model_version}.pt. We should add a new argument to the segmentation step that indicates where the model is located. If a local path is provided then the local model file is used. If a string of the form {model_name}-v{model_version} is provided, then Granny will download the model file from OSF, store it in the current directory and then use that model.