TypeError: Not a cmessage when calling document.set()

[jstray]

This seems to be closely related to issue 778 and issue 680.

Getting TypeError: Not a cmessage on version 2.17.0, trying to execute this line:

db.collection("users").document(user_id).set(user_record)

Writing to the emulator, not the actual cloud. Recently did a pip install -r requirements.txt which seemed to break this, everything worked before. Unfortunately I don't have that log so can't say exactly what upgraded.
Deprecating urllib3 to 1.26.15 (as suggested here) was no help

Stack Trace

mailer_test.py:50: in create_test_data
    db.collection("users").document(user_id).set(user_record)
/usr/local/anaconda3/lib/python3.12/site-packages/google/cloud/firestore_v1/document.py:165: in set
    batch, kwargs = self._prep_set(document_data, merge, retry, timeout)
/usr/local/anaconda3/lib/python3.12/site-packages/google/cloud/firestore_v1/base_document.py:214: in _prep_set
    batch.set(self, document_data, merge=merge)
/usr/local/anaconda3/lib/python3.12/site-packages/google/cloud/firestore_v1/base_batch.py:112: in set
    write_pbs = _helpers.pbs_for_set_no_merge(
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

document_path = 'projects/prc-dev/databases/(default)/documents/users/never_sent_any_missing'
document_data = {'timestamp': Sentinel: Value used to set a document field to the server timestamp., 'user_id': 'never_sent_any_missing'}

    def pbs_for_set_no_merge(document_path, document_data) -> List[types.write.Write]:
        """Make ``Write`` protobufs for ``set()`` methods.
    
        Args:
            document_path (str): A fully-qualified document path.
            document_data (dict): Property names and values to use for
                replacing a document.
    
        Returns:
            List[google.cloud.firestore_v1.types.Write]: One
            or two ``Write`` protobuf instances for ``set()``.
        """
        extractor = DocumentExtractor(document_data)
    
        if extractor.deleted_fields:
            raise ValueError(
                "Cannot apply DELETE_FIELD in a set request without "
                "specifying 'merge=True' or 'merge=[field_paths]'."
            )
    
        set_pb = extractor.get_update_pb(document_path)
    
        if extractor.has_transforms:
            field_transform_pbs = extractor.get_field_transform_pbs(document_path)
>           set_pb.update_transforms.extend(field_transform_pbs)
E           TypeError: Not a cmessage

/usr/local/anaconda3/lib/python3.12/site-packages/google/cloud/firestore_v1/_helpers.py:723: TypeError

Environment details

• OS type and version: MacOS 15.5
• Python version: 3.12.4
• pip version: 24.0
• google-cloud-firestore version: 2.17.0

[jstray]

Update: bug does not occur when I remove timestamp fields on the document I am trying to save, e.g. "timestamp" : firestore.SERVER_TIMESTAMP

[jstray]

Update: downgrading to protobuf 3.20.1 fixed the error

[daniel-sanche]

Thanks for the detailed feedback. It sounds like this error was due to a bad update for one of our dependencies, so I'm going to close for now. If anyone is still seeing this problem, let me know and I'll re-open

[mileslow]

this is still happening and it only happens in some cases