Schema-Registry client badly formed hexadecimal UUID string #2098
Description
Hello we've seen this error when using sync schema registry to encode messages into avro
File "/e2e/utils/kafka/avro.py", line 43, in __call__ return encoder(message, {}) File "/.venv/lib/python3.13/site-packages/confluent_kafka/schema_registry/_sync/avro.py", line 290, in __call__ return self.__serialize(obj, ctx) ~~~~~~~~~~~~~~~~^^^^^^^^^^ File "/.venv/lib/python3.13/site-packages/confluent_kafka/schema_registry/_sync/avro.py", line 327, in __serialize self._schema_id = SchemaId(AVRO_TYPE, registered_schema.schema_id, registered_schema.guid) ~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/.venv/lib/python3.13/site-packages/confluent_kafka/schema_registry/common/serde.py", line 336, in __init__ self.guid = uuid.UUID(guid) if guid is not None else None ~~~~~~~~~^^^^^^ File "/.local/share/uv/python/cpython-3.13.7-linux-x86_64-gnu/lib/python3.13/uuid.py", line 181, in __init__ raise ValueError('badly formed hexadecimal UUID string') ValueError: badly formed hexadecimal UUID string It is caused by the order of arguments used here - https://github.com/confluentinc/confluent-kafka-python/blob/master/src/confluent_kafka/schema_registry/_async/schema_registry_client.py#L670
which does not match the semantics of the class it creates here
https://github.com/confluentinc/confluent-kafka-python/blame/master/src/confluent_kafka/schema_registry/common/schema_registry_client.py#L937