Google Protobuf简明教程

pip install protobuf    # 安装protobuf库
sudo apt-get install protobuf-compiler  # 安装protobuf编译器

.
├── my
│   ├── helloworld_pb2.py
│   ├── helloworld_pb2.pyc
│   └── __init__.py
├── mybuffer.io
├── my.helloworld.proto
├── reader.py
└── writer.py

package my;
message helloworld
{
    required int32 id = 1;
    required string str = 2;
    optional int32 wow = 3;
}

protoc -I=./ --python_out=./ ./my.helloworld.proto

from my.helloworld_pb2 import helloworld

def main():
    hw = helloworld()
    hw.id = 123
    hw.str = "eric"
    print hw

    with open("mybuffer.io", "wb") as f:
        f.write(hw.SerializeToString())

if __name__ == "__main__":
    main()

from my.helloworld_pb2 import helloworld


def main():
    hw = helloworld()
    with open("mybuffer.io", "rb") as f:
        hw.ParseFromString(f.read())
        print hw.id
        print hw.str


if __name__ == "__main__":
    main()