I found that when trying to implement the LongRunning Operations service, there was no OperationsServicer base class in the generated code, only the OperationsStub class.

I would normally expect this class (and the add_OperationsServicer_to_server() method) to be generated: https://grpc.io/docs/languages/python/generated-code/

What I noticed upon inspection of this repository is that the file google/longrunning/operations_grpc_pb2.py only has the OperationsStub class. Additionally, in noxfile.py, the generate_protos() method never actually regenerates the grpc generated code. A --grpc_python_out argument would be required somewhere in the grpctools.protoc call.

Environment details

• OS type and version: Windows 10 x64
• Python version: 3.8.1
• pip version: 20.0.2
• googleapis-common-protos version: 1.52.0

Steps to reproduce

Attempt to use the expected OperationsServicer class, as in the following snippet.

Code example

from google.longrunning import operations_pb2
class Servicer(operations_pb2.OperationsServicer):
    pass

Stack trace

(.venv) λ py operation_service.py
Traceback (most recent call last):
  File "operation_service.py", line 3, in <module>
    class Service(operations_pb2.OperationsServicer):
AttributeError: module 'google.longrunning.operations_pb2' has no attribute 'OperationsServicer'