These are grpc.io demos for various tasks, I have written them in Node.js and Java, but feel free to contribute more demos in other languages!
To generate/update the Python gRPC code, you have to manually do it through the terminal. I don't know if there's a way to let a build tool do it for you, but here's how to do it:
# change folders into the python folder
cd python
# generate code
python -m grpc_tools.protoc -I../proto --python_out=. --grpc_python_out=. ../proto/interchange.proto
You'll obviously need to have installed required dependencies, being grpcio
and grpcio_tools
.