以下是照着python操作protobuf进行的protobuf-python的学习笔记：
首先是protobuf的下载与安装：
1 由于google被墙，所以去github上面搜索了一下protobuf，于是找到了protobuf的git页：protobuf on github。
2 可以自己将protobuf下载下来进行编译，也可以直接用人家编译好的发行版，这个要看个人，我选择的是用编译好的发行版，下载地址在这里：protobuf realse version。
记得要同时下载两个东西，例如我下载的是：protobuf-2.6.1.zip 和 protobuf-2.6.1-win32.zip。
前者包含了protobuf与各语言（java，python）之间的protobuf运行时库，这个在转换的时候需要用到，相当与protobuf与各语言之间的协定格式。
后者包含了一个文件 protoc.exe，编译工具来的。
3 由于我们是要学习protobuf-python来着，所以解压玩protobuf-2.6.1.zip之后，我们可以在文件夹下面找到一个python文件夹，在其中会看到一个setup.py。
我们依次运行：python setup.py build 和 python setup.py install
有没有成功在控制台可以看得到。
这样环境就安装好了（python 建议选择2.7版本）。
接着就是编写和转换proto文件：
1 新建一个addressbook.proto文件，这个文件完全是按照原帖编写的，如下：
package tutorial;
message Person{
required string name = 1;
required int32 id = 2;
optional string email = 3;
enum PhoneType{
MOBILE = 0;
HOME = 1;
WORK = 2;
}
message PhoneNumber{
required string number = 1;
optional PhoneType type = 2[default = HOME];
}
repeated PhoneNumber phone = 4;
}
message AddressBook{
repeated Person person = 1;
}
2 利用protoc.exe编译proto文件，如下：
其中 -I是源文件目录 --python_out是文件输出目录 最后的参数addressbook.proto是你需要编译的协议文件，
编译好之后你就会在目标目录里面看到输出的结果文件，如下：
# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: addressbook.proto import sys
_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
from google.protobuf import descriptor as _descriptor
from google.protobuf import message as _message
from google.protobuf import reflection as _reflection
from google.protobuf import symbol_database as _symbol_database
from google.protobuf import descriptor_pb2
# @@protoc_insertion_point(imports) _sym_db = _symbol_database.Default() DESCRIPTOR = _descriptor.FileDescriptor(
name='addressbook.proto',
package='tutorial',
serialized_pb=_b('\n\x11\x61\x64\x64ressbook.proto\x12\x08tutorial\"\xda\x01\n\x06Person\x12\x0c\n\x04name\x18\x01 \x02(\t\x12\n\n\x02id\x18\x02 \x02(\x05\x12\r\n\x05\x65mail\x18\x03 \x01(\t\x12+\n\x05phone\x18\x04 \x03(\x0b\x32\x1c.tutorial.Person.PhoneNumber\x1aM\n\x0bPhoneNumber\x12\x0e\n\x06number\x18\x01 \x02(\t\x12.\n\x04type\x18\x02 \x01(\x0e\x32\x1a.tutorial.Person.PhoneType:\x04HOME\"+\n\tPhoneType\x12\n\n\x06MOBILE\x10\x00\x12\x08\n\x04HOME\x10\x01\x12\x08\n\x04WORK\x10\x02\"/\n\x0b\x41\x64\x64ressBook\x12 \n\x06person\x18\x01 \x03(\x0b\x32\x10.tutorial.Person')
)
_sym_db.RegisterFileDescriptor(DESCRIPTOR) _PERSON_PHONETYPE = _descriptor.EnumDescriptor(
name='PhoneType',
full_name='tutorial.Person.PhoneType',
filename=None,
file=DESCRIPTOR,
values=[
_descriptor.EnumValueDescriptor(
name='MOBILE', index=0, number=0,
options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='HOME', index=1, number=1,
options=None,
type=None),
_descriptor.EnumValueDescriptor(
name='WORK', index=2, number=2,
options=None,
type=None),
],
containing_type=None,
options=None,
serialized_start=207,
serialized_end=250,
)
_sym_db.RegisterEnumDescriptor(_PERSON_PHONETYPE) _PERSON_PHONENUMBER = _descriptor.Descriptor(
name='PhoneNumber',
full_name='tutorial.Person.PhoneNumber',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='number', full_name='tutorial.Person.PhoneNumber.number', index=0,
number=1, type=9, cpp_type=9, label=2,
has_default_value=False, default_value=_b("").decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='type', full_name='tutorial.Person.PhoneNumber.type', index=1,
number=2, type=14, cpp_type=8, label=1,
has_default_value=True, default_value=1,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=128,
serialized_end=205,
) _PERSON = _descriptor.Descriptor(
name='Person',
full_name='tutorial.Person',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='name', full_name='tutorial.Person.name', index=0,
number=1, type=9, cpp_type=9, label=2,
has_default_value=False, default_value=_b("").decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='id', full_name='tutorial.Person.id', index=1,
number=2, type=5, cpp_type=1, label=2,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='email', full_name='tutorial.Person.email', index=2,
number=3, type=9, cpp_type=9, label=1,
has_default_value=False, default_value=_b("").decode('utf-8'),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
_descriptor.FieldDescriptor(
name='phone', full_name='tutorial.Person.phone', index=3,
number=4, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[_PERSON_PHONENUMBER, ],
enum_types=[
_PERSON_PHONETYPE,
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=32,
serialized_end=250,
) _ADDRESSBOOK = _descriptor.Descriptor(
name='AddressBook',
full_name='tutorial.AddressBook',
filename=None,
file=DESCRIPTOR,
containing_type=None,
fields=[
_descriptor.FieldDescriptor(
name='person', full_name='tutorial.AddressBook.person', index=0,
number=1, type=11, cpp_type=10, label=3,
has_default_value=False, default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[],
enum_types=[
],
options=None,
is_extendable=False,
extension_ranges=[],
oneofs=[
],
serialized_start=252,
serialized_end=299,
) _PERSON_PHONENUMBER.fields_by_name['type'].enum_type = _PERSON_PHONETYPE
_PERSON_PHONENUMBER.containing_type = _PERSON
_PERSON.fields_by_name['phone'].message_type = _PERSON_PHONENUMBER
_PERSON_PHONETYPE.containing_type = _PERSON
_ADDRESSBOOK.fields_by_name['person'].message_type = _PERSON
DESCRIPTOR.message_types_by_name['Person'] = _PERSON
DESCRIPTOR.message_types_by_name['AddressBook'] = _ADDRESSBOOK Person = _reflection.GeneratedProtocolMessageType('Person', (_message.Message,), dict( PhoneNumber = _reflection.GeneratedProtocolMessageType('PhoneNumber', (_message.Message,), dict(
DESCRIPTOR = _PERSON_PHONENUMBER,
__module__ = 'addressbook_pb2'
# @@protoc_insertion_point(class_scope:tutorial.Person.PhoneNumber)
))
,
DESCRIPTOR = _PERSON,
__module__ = 'addressbook_pb2'
# @@protoc_insertion_point(class_scope:tutorial.Person)
))
_sym_db.RegisterMessage(Person)
_sym_db.RegisterMessage(Person.PhoneNumber) AddressBook = _reflection.GeneratedProtocolMessageType('AddressBook', (_message.Message,), dict(
DESCRIPTOR = _ADDRESSBOOK,
__module__ = 'addressbook_pb2'
# @@protoc_insertion_point(class_scope:tutorial.AddressBook)
))
_sym_db.RegisterMessage(AddressBook) # @@protoc_insertion_point(module_scope)
addressbook_pb2.py
然后我们就可以使用生成的python文件了，
1 首先新建一个程序文档，代码还是来自原帖的：
import addressbook_pb2
import sys def PromptForAddress(person):
person.id = int(raw_input("Please input the id of this person..."))
person.name = raw_input("Please input a name for the person...")
email = raw_input("Please enter the email address of the person....") if email != "":
person.email = email
pass while True:
number = raw_input("Enter a phone number :")
if number == "":
break
pass phone_number = person.phone.add()
phone_number.number = number type = raw_input("Is this a mobile, home, or work phone?")
if type == "mobile":
phone_number.type = addressbook_pb2.Person.MOBILE
elif type == "home":
phone_number.type = addressbook_pb2.Person.HOME
elif type == "work":
phone_number.type = addressbook_pb2.Person.WORK
else:
print("Unknown phont type; leaving as default value.")
pass
pass
pass if len(sys.argv) != 2:
print("Usage:", sys.argv[0], "ADDRESS_BOOK_FILE")
sys.exit(-1)
pass
print("What am i doing....")
address_book = addressbook_pb2.AddressBook() try:
f = open(sys.argv[1], "rb")
address_book.ParseFromString(f.read())
f.close()
except IOError, e:
print(sys.argv[1] + " : File not found. Creating a new file")
pass PromptForAddress(address_book.person.add()) f = open(sys.argv[1], "wb")
f.write(address_book.SerializeToString())
f.close()
add_person.py
2 然后运行这个文件，并按照提示进行操作：
然后你就可以在你的文件夹下面发现了保存的beach文件。