Python uses protobuf

1. Install the PROTOBUF compiler

./configure--prefix=dist; Make make install; Configuring the Bin Path

2. Into the extracted Python directory

Reference Readme.txt,python setup.py Install

3. Use

Message Rowproto {
required uint32 null_map = 1;
Repeated string column = 2;
}

Message Tableproto {
repeated string column = 1;
Repeated string row = 2;
}

Compile

Protoc--python_out=/data/home/./dataservice.proto

Get dataservice_pb2.py

Instance

Import sys
import DATASERVICE_PB2

#create proto
row = dataservice_pb2. Rowproto ()
row.null_map = 1
row.column.append ("Wang")
row.column.append ("female")
Row_str=row. Serializetostring ()
print row_str
table = dataservice_pb2. Tableproto ()
table.column.append ("name")
table.column.append ("gender")
Table.row.append (ROW_STR)
table_str = table. Serializetostring ()

#process proto
Table_proto = dataservice_pb2. Tableproto ()
Table_proto. Parsefromstring (TABLE_STR)
print "column:"
print table_proto.column

row_str = table_proto.row[0]
Row_proto = dataservice_pb2. Rowproto ()
Row_proto. Parsefromstring (Row_str.encode (' UTF8 '))
print "Row1:"
print Row_proto.column

Read files

Import sys
import 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 ()