scikit-learn version 1.2.2 is not supported. Minimum required version: 0.17. Maximum required version: 1.1.2. Disabling scikit-learn conversion API.
Torch version 2.0.1 has not been tested with coremltools. You may run into unexpected errors. Torch 2.0.0 is the most recent version that has been tested.
Testing with coremltools version: 7.0b1 ...
Converting PyTorch Frontend ==> MIL Ops:  91%|████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████              | 10/11 [00:00<00:00, 6644.97 ops/s]
Traceback (most recent call last):
  File "/Users/oliverxu/Workspace/coremltools_issues/v7.0b_torch_dynamicshape.py", line 24, in <module>
    converted = ct.convert(
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/_converters_entry.py", line 530, in convert
    mlmodel = mil_convert(
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/mil/converter.py", line 188, in mil_convert
    return _mil_convert(model, convert_from, convert_to, ConverterRegistry, MLModel, compute_units, **kwargs)
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/mil/converter.py", line 212, in _mil_convert
    proto, mil_program = mil_convert_to_proto(
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/mil/converter.py", line 286, in mil_convert_to_proto
    prog = frontend_converter(model, **kwargs)
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/mil/converter.py", line 108, in __call__
    return load(*args, **kwargs)
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/mil/frontend/torch/load.py", line 63, in load
    return _perform_torch_convert(converter, debug)
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/mil/frontend/torch/load.py", line 102, in _perform_torch_convert
    prog = converter.convert()
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/mil/frontend/torch/converter.py", line 439, in convert
    convert_nodes(self.context, self.graph)
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/mil/frontend/torch/ops.py", line 92, in convert_nodes
    add_op(context, node)
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/mil/frontend/torch/ops.py", line 1569, in pad
    if pad.val is not None:
AttributeError: 'list' object has no attribute 'val'

import torch
import torch.nn as nn
import torch.nn.functional as F

import coremltools as ct

class TryPad(nn.Module):
    def forward(self, x):
        pad_length = x.size(2)
        y = F.pad(x, [0, 0, pad_length, pad_length])
        return y
torch_model = TryPad().eval()

length = 10
x = torch.Tensor([[1] * length * 192]).reshape(1, 192, length)

y = torch_model(x)

print('Testing with coremltools version:', ct.__version__, '...')

traced_model = torch.jit.trace(torch_model, x)
converted = ct.convert(
    traced_model,
    inputs=[ct.TensorType(
        name='x',
        shape=ct.Shape(shape=(1, 192,
            # 10, # static shape, conversion succeed
            ct.RangeDim(lower_bound=2, upper_bound=1024, default=length) # dynamic shape, conversion failed
    )))],
    outputs=[ct.TensorType(name='y')],
    # convert_to="mlprogram", # same w/ or w/o
)

Throwing:
  File "/Users/oliverxu/Workspace/coremltools/coremltools/converters/mil/frontend/torch/ops.py", line 1569, in pad
    if pad.val is not None:
AttributeError: 'list' object has no attribute 'val'

(base) 7.0b1clean ~/Workspace/coremltools
 $ git status
On branch 7.0b1
nothing to commit, working tree clean
(base) 7.0b1clean ~/Workspace/coremltools
 $ git log -1
commit b5ba7e1d19310dafc10fb26a2e8ef525214b91ff (HEAD -> 7.0b1, tag: 7.0b1)
Author: Toby Roseman <[email protected]>
Date:   Mon Jun 5 15:11:04 2023 -0700

    7.0b1 release (#1874)