Can file an issue on github with more details about the protobuf versions,
OS, etc: https://github.com/protocolbuffers/protobuf/issues
On Friday, November 17, 2023 at 6:48:05 AM UTC-5 priya_cast_23 wrote:
> I was wondering if someone experienced this error before.
> I tried to check if the descriptor is a repeated scalar fields and
> convert to a list by
> changing the new_element to a list but it did not work.
>
> I appreciate your time and thoughtful consideration.
> On Thursday, November 16, 2023 at 12:39:58 PM UTC priya_cast_23 wrote:
>
>> I am trying to parallelize a protobuf application
>> one instance in each thread but I am getting this error
>>
>> /usr/local/lib/python3.10/dist-packages/google/protobuf/internal/containers.py",
>>
>> line 250, in __reduce__
>> raise pickle.PickleError("Can't pickle repeated scalar fields,
>> convert to list first")
>>
>> I compiled protobuf
>> ./configure CPPFLAGS="-DGOOGLE_PROTOBUF_NO_THREAD_SAFETY"
>>
>> def __reduce__(self, **kwargs) -> NoReturn:
>> # Convert repeated scalar fields to lists
>> raise pickle.PickleError("Can't pickle repeated scalar fields,
>> convert to list first")
>>
>>
>> def add(self, **kwargs: Any) -> _T:
>> """Adds a new element at the end of the list and returns it. Keyword
>> arguments may be used to initialize the element.
>> """
>> new_element = self._message_descriptor._concrete_class(**kwargs)
>> new_element._SetListener(self._message_listener)
>> self._values.append(new_element)
>> if not self._message_listener.dirty:
>> self._message_listener.Modified()
>> return new_element
>>
>
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