写proto文件

package lm;

message Person

{

required int32  id = 1;

required string str = 2;

optional int32  opt = 3;

}

保存为 testp.testpb.proto

编译指令

protoc -I=/home/workspace/testprob --python_out=/home/workspace/testprob /home/workspace/testprob/testp.testpb.proto

google

https://developers.google.com/protocol-buffers/docs/pythontutorial

报错

package directory 'google/protobuf/compiler' does not exist

解决

https://groups.google.com/forum/?fromgroups=#!topic/protobuf/YeT5RW4qCxY

python ./setup.py build

sudo python ./setup.py install

报错

File "/home/workspace/testprob/testp/testpb_pb2.py", line 6, in

from google.protobuf import reflection as _reflection

File "build/bdist.linux-i686/egg/google/protobuf/reflection.py", line 68, in

File "build/bdist.linux-i686/egg/google/protobuf/internal/python_message.py"

ImportError: cannot import name enum_type_wrapper

解决

http://code.google.com/p/protobuf/issues/detail?id=438

Log message

Fix  issue 438 : add missing 'enum_type_wrapper' to setup.py

是安装包的一个改进文件，copy下来， 重新安装

根据安装目录下的demo  自己改写了个简单的， 觉得它那个还是麻烦

write.py

import testpb_pb4

import sys

p = testpb_pb2.Person()

try:

f = open(sys.argv[1], "rb")

p.ParseFromString(f.read())

f.close()

except IOError:

print sys.argv[1] + ": File not found.  Creating a new file."

p.id = 32

p.str = "test"

f = open(sys.argv[1], "wb")

f.write(p.SerializeToString())

f.close()

print "write success"

编译指令 python write.py "test"

read.py

import sys

import testpb_pb2

if len(sys.argv) != 2:

print "Usage:", sys.argv[0], "ADDRESS_BOOK_FILE"

sys.exit(-1)

p = testpb_pb2.Person()

f = open(sys.argv[1], "rb")

p.ParseFromString(f.read())

f.close()

print "p.str = ",  p.str

print "p.id=", p.id

编译指令 python read.py "test"