python使用protobuf

1.安裝protobuf編譯器

./configure --prefix=dist; make; make install; 配置bin路徑

2.進入解壓後的python目錄下

參考README.txt，python setup.py install

3.使用

message RowProto {required uint32 null_map = 1;repeated string column = 2;}message TableProto {repeated string column = 1;repeated string row = 2;}

編譯

protoc --python_out=/data/home/ ./DataService.proto

得到DataService_pb2.py

執行個體

import sysimport DataService_pb2#create protorow = DataService_pb2.RowProto()row.null_map = 1row.column.append("wang")row.column.append("female")row_str=row.SerializeToString()print row_strtable = DataService_pb2.TableProto()table.column.append("name")table.column.append("gender")table.row.append(row_str)table_str = table.SerializeToString()#process prototable_proto = DataService_pb2.TableProto()table_proto.ParseFromString(table_str)print "column:"print table_proto.columnrow_str = table_proto.row[0]row_proto = DataService_pb2.RowProto()row_proto.ParseFromString(row_str.encode('utf8'))print "row1:"print row_proto.column

讀檔案

import sysimport DataService_pb2  f = open("table", 'rb',)  table_proto = DataService_pb2.TableProto()  table_proto.ParseFromString(f.read())  print table_proto.column  #print table_proto.row  for row in table_proto.row:    row_proto = DataService_pb2.RowProto()    row_proto.ParseFromString(row.encode('utf-8'))    print row_proto.column  f.close()