kainoa21 commented on a change in pull request #10981: URL: https://github.com/apache/arrow/pull/10981#discussion_r694940645
########## File path: python/pyarrow/types.pxi ########## @@ -2349,12 +2363,23 @@ cpdef MapType map_(key_type, item_type, keys_sorted=False): map_type : DataType """ cdef: - DataType _key_type = ensure_type(key_type, allow_none=False) - DataType _item_type = ensure_type(item_type, allow_none=False) + Field _key_field + Field _item_field shared_ptr[CDataType] map_type MapType out = MapType.__new__(MapType) - map_type.reset(new CMapType(_key_type.sp_type, _item_type.sp_type, + if isinstance(key_type, Field): + _key_field = key_type Review comment: Added a commit to ensure the nullability for a passed field is correct. -- 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: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org