$ pip install grpcio

$ pip install protobuf

pip install grpcio-tools

client目錄下的 main.py 實現(xiàn)了客戶端用于發(fā)送數(shù)據(jù)并打印接收到 server 端處理后的數(shù)據(jù)

syntax = "proto3";
package example;
service FormatData {
  rpc DoFormat(Data) returns (Data){}
}
message Data {
  string text = 1;
}

python -m grpc_tools.protoc -I. --python_out=. --grpc_python_out=. ./data.proto 

#在 example 目錄中執(zhí)行編譯,，會生成：data_pb2.py 與 data_pb2_grpc.py

#! /usr/bin/env python
# -*- coding: utf-8 -*-
import grpc
import time
from concurrent import futures
from example import data_pb2, data_pb2_grpc

_ONE_DAY_IN_SECONDS = 60 * 60 * 24
_HOST = 'localhost'
_PORT = '8080'

class FormatData(data_pb2_grpc.FormatDataServicer):
    def DoFormat(self, request, context):
        str = request.text
        return data_pb2.Data(text=str.upper())

def serve():
    grpcServer = grpc.server(futures.ThreadPoolExecutor(max_workers=4))
    data_pb2_grpc.add_FormatDataServicer_to_server(FormatData(), grpcServer)
    grpcServer.add_insecure_port(_HOST + ':' + _PORT)
    grpcServer.start()
    try:
        while True:
            time.sleep(_ONE_DAY_IN_SECONDS)
    except KeyboardInterrupt:
        grpcServer.stop(0)

if __name__ == '__main__':
    serve()

#! /usr/bin/env python
# -*- coding: utf-8 -*-
import grpc
from example import data_pb2, data_pb2_grpc

_HOST = 'localhost'
_PORT = '8080'

def run():
    conn = grpc.insecure_channel(_HOST + ':' + _PORT)
    client = data_pb2_grpc.FormatDataStub(channel=conn)
    response = client.DoFormat(data_pb2.Data(text='hello,world!'))
    print("received: " + response.text)

if __name__ == '__main__':
    run()

先啟動 server,，之后再執(zhí)行 client