'ModelProto' object has no attribute 'opset_import'

[tjingrant]

Hi,

I'm seeing the following error when loading official onnx models:

Traceback (most recent call last):
  File "test_model_large_stepping.py", line 37, in test
    cf_rep = c2.prepare(_model)
  File "/Users/xxx/onnx-caffe2/onnx_caffe2/backend.py", line 559, in prepare
    for imp in model.opset_import:
AttributeError: 'ModelProto' object has no attribute 'opset_import'

I'm using latest onnx from source, latest onnx-caffe2 from pip install.

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals

import unittest
import numpy as np
import onnx
import onnx_caffe2.backend as c2
from onnx import helper
from onnx.onnx_pb2 import TensorProto

class TestLargeModel(unittest.TestCase):
  MODEL_PATH = "../../../onnx_models/"

  def test(self):
    _model = onnx.load(self.MODEL_PATH + "shufflenet/model.pb")
    cf_rep = c2.prepare(_model)

if __name__ == '__main__':
  unittest.main()

maybe time to update model zoo?

Best wishes,
Tian Jin.

[ezyang]

What is the commit ID of the onnx Git checkout you are building with? opset_import was added relatively recently, so the most plausible explanation is your onnx checkout is still not recent enough.