For this sample, we've already generated the server and client stubs from helloworld.proto and we'll be using a specific reference platform.

Install gRPC:

$ pip install grpcio

Or, to install it system wide:

	$ sudo pip install grpcio

Download the example

  $ # Clone the repository to get the example code:
  $ git clone https://github.com/grpc/grpc
  $ # Navigate to the "hello, world" Python example:
  $ cd grpc/examples/python/helloworld

• Run the server

  $ python2.7 greeter_server.py &

• Run the client

  $ python2.7 greeter_client.py

You can find a more detailed tutorial in gRPC Basics: Python