下载地址：
http://code.google.com/p/protobuf/downloads/list
安装命令
tar -xzf protobuf-2.5.0.tar.gz
cd protobuf-2.5.0
./configure --prefix=$INSTALL_DIR
make
make check
make install
然后进入python目录,
python setup.py install --prefix=$INSTALL_DIR
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
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 <module>
from google.protobuf import reflection as _reflection
File "build/bdist.linux-i686/egg/google/protobuf/reflection.py", line 68, in <module>
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"