I installed protoc to my ubuntu and got version libprotoc 3.12.4
I reproduce all my steps and got typical example of pb2.py file consisted
all data
# -*- coding: utf-8 -*-
# Generated by the protocol buffer compiler. DO NOT EDIT!
# source: test.proto
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
# @@protoc_insertion_point(imports)
_sym_db = _symbol_database.Default()
DESCRIPTOR = _descriptor.FileDescriptor(
name='test.proto',
package='',
syntax='proto3',
serialized_options=None,
create_key=_descriptor._internal_create_key,
serialized_pb=b'\n\ntest.proto\"M\n\rSearchRequest\x12\r\n\x05query\x18\x01
\x01(\t\x12\x13\n\x0bpage_number\x18\x02
\x01(\x05\x12\x18\n\x10results_per_page\x18\x03 \x01(\x05\x62\x06proto3'
)
_SEARCHREQUEST = _descriptor.Descriptor(
name='SearchRequest',
full_name='SearchRequest',
filename=None,
file=DESCRIPTOR,
containing_type=None,
create_key=_descriptor._internal_create_key,
fields=[
_descriptor.FieldDescriptor(
name='query', full_name='SearchRequest.query', index=0,
number=1, 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,
serialized_options=None, file=DESCRIPTOR,
create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='page_number', full_name='SearchRequest.page_number', index=1,
number=2, type=5, cpp_type=1, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR,
create_key=_descriptor._internal_create_key),
_descriptor.FieldDescriptor(
name='results_per_page', full_name='SearchRequest.results_per_page',
index=2,
number=3, type=5, cpp_type=1, label=1,
has_default_value=False, default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
serialized_options=None, file=DESCRIPTOR,
create_key=_descriptor._internal_create_key),
],
extensions=[
],
nested_types=[],
enum_types=[
],
serialized_options=None,
is_extendable=False,
syntax='proto3',
extension_ranges=[],
oneofs=[
],
serialized_start=14,
serialized_end=91,
)
DESCRIPTOR.message_types_by_name['SearchRequest'] = _SEARCHREQUEST
_sym_db.RegisterFileDescriptor(DESCRIPTOR)
SearchRequest = _reflection.GeneratedProtocolMessageType('SearchRequest',
(_message.Message,), {
'DESCRIPTOR' : _SEARCHREQUEST,
'__module__' : 'test_pb2'
# @@protoc_insertion_point(class_scope:SearchRequest)
})
_sym_db.RegisterMessage(SearchRequest)
# @@protoc_insertion_point(module_scope)
And I have a question - what did I wrong in my first attempt? Is it a new
version of protoc? or is it a problem in my Windows? Or anything else?
On Tuesday, 1 August 2023 at 14:35:32 UTC+3 Nikita Ig wrote:
> Hello. I'm a rookie in protocol buffers and I'm trying to repeat example
> from documentation.
>
> Step 1. Installed protoc
> Step 2. Created test.proto file consisted this code:
> syntax = "proto3";
>
> message SearchRequest {
> string query = 1;
> int32 page_number = 2;
> int32 results_per_page = 3;
> }
> Step 3. I ran protoc with help command:
> protoc.exe --proto_path=${PWD}/protobuf --python_out=${PWD}/protobuf/
> ${PWD}/protobuf/test.proto
>
> Step 4. I got test_pb2.py file consisted this code:
> # -*- coding: utf-8 -*-
> # Generated by the protocol buffer compiler. DO NOT EDIT!
> # source: test.proto
> """Generated protocol buffer code."""
> from google.protobuf import descriptor as _descriptor
> from google.protobuf import descriptor_pool as _descriptor_pool
> from google.protobuf import symbol_database as _symbol_database
> from google.protobuf.internal import builder as _builder
> # @@protoc_insertion_point(imports)
>
> _sym_db = _symbol_database.Default()
>
>
>
>
> DESCRIPTOR =
> _descriptor_pool.Default().AddSerializedFile(b'\n\ntest.proto\"M\n\rSearchRequest\x12\r\n\x05query\x18\x01
>
> \x01(\t\x12\x13\n\x0bpage_number\x18\x02
> \x01(\x05\x12\x18\n\x10results_per_page\x18\x03 \x01(\x05\x62\x06proto3')
>
> _globals = globals()
> _builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, _globals)
> _builder.BuildTopDescriptorsAndMessages(DESCRIPTOR, 'test_pb2', _globals)
> if _descriptor._USE_C_DESCRIPTORS == False:
>
> DESCRIPTOR._options = None
> _globals['_SEARCHREQUEST']._serialized_start=14
> _globals['_SEARCHREQUEST']._serialized_end=91
> # @@protoc_insertion_point(module_scope)
>
> But documentation said about other format file for python generated file
> and I have no idea what I need to import in my producer for create message
> object. Generated file didn't contain any classes or something other entity
> for import.
>
> Thanks for any help.
>
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