Python gprc AttributeError: 'NoneType' object has no attribute 'message_types_by_name'

Question

I just want to complete a simple demo, but I got this error message.

Traceback (most recent call last):
  File "E:/grpc/biliService.py", line 10, in <module>
    import hello_bilibili_pb2 as pb2
  File "E:\grpc\hello_bilibili_pb2.py", line 21, in <module>
    _HELLODEWEIREQ = DESCRIPTOR.message_types_by_name['HelloDeweiReq']
AttributeError: 'NoneType' object has no attribute 'message_types_by_name'

Patagium

Answer 1

grpcio==1.30.0
grpcio-tools==1.30.0

The latest grpcio version 1.44.0 generate incompatible pb2 files, so I've seen the same question, I downgrade grpcio 1.30.0， and it worked.

Wonderland

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I wasn't able to run this inside docker for these versions for some reason 🤔 – Frascati