# newer for poetry
curl -sSL https://install.python-poetry.org | POETRY_VERSION=1.2.1 python3 -
# install dependency
poetry install
poetry shell
pre-commit install
pre-commit run -a

$ cd grpc-errors
$ python -m grpc_tools.protoc --proto_path=./ --python_out=./stub --grpc_python_out=./stub ./hello.proto

$ python server.py &
$ python client.py