[GitHub] [incubator-mxnet] leezu commented on pull request #18445: updating ubuntu_cpu base image to 20.04 to observe failing tests regarding Python 3.8

[GitBox <gi...@apache.org>]

leezu commented on pull request #18445:
URL: https://github.com/apache/incubator-mxnet/pull/18445#issuecomment-652702713


   @ma-hei I also noticed this error in some unrelated cd job which was building mxnet for python 3.8. Just FYI, and not necessarily something you need to take into account here.
   
   ```
   Traceback (most recent call last):
   
     File "setup.py", line 137, in <module>
   
       from mxnet.base import _generate_op_module_signature
   
     File "/Users/travis/build/dmlc/mxnet-distro/mxnet/__init__.py", line 34, in <module>
   
       from . import contrib
   
     File "/Users/travis/build/dmlc/mxnet-distro/mxnet/contrib/__init__.py", line 31, in <module>
   
       from . import onnx
   
     File "/Users/travis/build/dmlc/mxnet-distro/mxnet/contrib/onnx/__init__.py", line 21, in <module>
   
       from .mx2onnx.export_model import export_model
   
     File "/Users/travis/build/dmlc/mxnet-distro/mxnet/contrib/onnx/mx2onnx/__init__.py", line 23, in <module>
   
       from . import _op_translations
   
     File "/Users/travis/build/dmlc/mxnet-distro/mxnet/contrib/onnx/mx2onnx/_op_translations.py", line 60, in <module>
   
       import onnx
   
     File "/Users/travis/.local/lib/python3.8/site-packages/onnx/__init__.py", line 8, in <module>
   
       from onnx.external_data_helper import load_external_data_for_model, write_external_data_tensors
   
     File "/Users/travis/.local/lib/python3.8/site-packages/onnx/external_data_helper.py", line 10, in <module>
   
       from .onnx_pb import TensorProto, ModelProto
   
     File "/Users/travis/.local/lib/python3.8/site-packages/onnx/onnx_pb.py", line 8, in <module>
   
       from .onnx_ml_pb2 import *  # noqa
   
     File "/Users/travis/.local/lib/python3.8/site-packages/onnx/onnx_ml_pb2.py", line 19, in <module>
   
       DESCRIPTOR = _descriptor.FileDescriptor(
   
   TypeError: __init__() got an unexpected keyword argument 'serialized_options'
   
   ```


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