[protobuf] Issue 277 in protobuf: warning: [serial] serializable class has no definition of serialVersionUID
Status: New Owner: liuj...@google.com Labels: Type-Defect Priority-Medium New issue 277 by chiragpa...@gmail.com: warning: [serial] serializable class has no definition of serialVersionUID http://code.google.com/p/protobuf/issues/detail?id=277 Hi, We are still getting these serialization warnings reported in http://code.google.com/p/protobuf/issues/detail?id=246 We are using 2.4.0a release. We upgraded from 2.3.0 where it was not giving such warnings. I am not sure if I need to do anything special with my proto files here to generate serialVersionUID definition? one of the proto files attached here. Thanks, -Chirag Attachments: error.proto 194 bytes -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Python Client: pickling error
Environment: CentOS 64bit Python 2.6 Protocol Buffers 2.4.0.a Python client with Native C++ support python protocol buffers installed to ~/protobuf LD_LIBRARY_PATH=~/protobuf/lib:~/protobuf/google/protobuf/src/.libs PYTHONPATH=:~/protobuf/:.:~/protobuf/google/protobuf/src/.libs:~/ protobuf/lib Hi, In a multiprocessing environment, my code is trying to add decoded messages to a shared Queue, and then pop them off at a later stage. Inserting messages in the Queue is working fine. But while fetching those messages, am getting this error: Traceback (most recent call last): File /usr/lib64/python2.6/multiprocessing/queues.py, line 242, in _feed send(obj) PicklingError: Can't pickle type 'google3.net.google.protobuf.python.internal._net_proto2___python.CMessage': import of module google3.net.google.protobuf.python.internal._net_proto2___python failed Verified LD_LIBRARY_PATH, LD_RUN_PATH, PYTHONPATH and they all seem to be valid. Anyway help in solving this problem is appreciated. Inserting messages to Queue: while not self.stopped(): el = self.rcvr.next_message() if el is not None: print %s is the event%el Q.put(el) Popping messages off Queue: def next_message(self): Returns next event (if available) from Queue return Q.get() where Q is multiprocessing.Queue -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Issue 278 in protobuf: SerializeToString fail if nested types all field is empty
Status: New
Owner: liuj...@google.com
Labels: Type-Defect Priority-Medium
New issue 278 by muzuiget: SerializeToString fail if nested types all field
is empty
http://code.google.com/p/protobuf/issues/detail?id=278
version protobuf-2.4.0a, python2.6 ubuntu 10.10 install from source tarball
with easy_install.
If define a proto file as below
$cat test.proto
message Child {
repeated int32 a = 1;
repeated int32 b = 2;
}
message Partent {
required Child child = 1;
}
generate a python class file, run code as below
$ cat test1.py
import test_pb2
p = test_pb2.Partent()
print p
p.SerializeToString()
$ python test1.py
Traceback (most recent call last):
File test1.py, line 4, in module
p.SerializeToString()
File /usr/local/lib/python2.6/dist-packages/protobuf-2.4.0a-py2.6.egg/google/protobuf/internal/python_message.py,
line 730, in SerializeToString
','.join(self.FindInitializationErrors()))
google.protobuf.message.EncodeError: Message is missing required fields:
child
Because both child.a and child.b are empty, it cause child empty. A
solution is change the Child tag to optional.
I don't know it is a feature or bug. But if I run
$ cat test2.py
import test_pb2
p = test_pb2.Partent()
print p
print p.child.a
p.child.a.append(1)
p.child.a.remove(1)
print p
print p.child.a
p.SerializeToString()
$ python test2.py
[]
child {
}
[]
After append and remove, child.a and child.b sitll empty, but this time
child is not empty, SerializeToString success.
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