python-grpc-simple. virtualenv -p python3 env. source env/bin/activate. pip install grpcio-tools==1.33.2. python3 -m grpc_tools.protoc --proto_path=. ./protos/greeting.proto --python_out=. --grpc_python_out=. Server up. python grpc_client_test.py Test Client. python grpc_client_test.py