khwilson commented on issue #44406: URL: https://github.com/apache/arrow/issues/44406#issuecomment-2412650636
I believe this already works. See https://github.com/apache/arrow/blob/main/python/pyarrow/array.pxi#L372 and this example: ```python from uuid import uuid4 import pyarrow as pa class UuidType(pa.ExtensionType): def __init__(self): pa.ExtensionType.__init__(self, pa.binary(16), "my_package.uuid") def __arrow_ext_serialize__(self): # since we don't have a parameterized type, we don't need extra # metadata to be deserialized return b'' @classmethod def __arrow_ext_deserialize__(self, storage_type, serialized): # return an instance of this subclass given the serialized # metadata. return UuidType() def main(): data = [uuid4().bytes] arr = pa.array(data, type=UuidType()) print(arr) if __name__ == "__main__": main() ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
