[GitHub] [airflow] ValBerthe edited a comment on issue #16172: Cattrs 1.7.0 break lineage and papermill

[GitBox <gi...@apache.org>]

ValBerthe edited a comment on issue #16172:
URL: https://github.com/apache/airflow/issues/16172#issuecomment-857692522


   Downgrading `cattrs` doesn't seem to fix this issue.
   Tried:
   - 1.7.0
   - 1.4.0
   - 1.1.2
   - 1.0.0
   
   Stacktrace :
   
   ```
   Traceback (most recent call last):
     File "/usr/local/lib/python3.8/dist-packages/airflow/models/taskinstance.py", line 1137, in _run_raw_task
       self._prepare_and_execute_task_with_callbacks(context, task)
     File "/usr/local/lib/python3.8/dist-packages/airflow/models/taskinstance.py", line 1288, in _prepare_and_execute_task_with_callbacks
       task_copy.pre_execute(context=context)
     File "/usr/local/lib/python3.8/dist-packages/airflow/lineage/__init__.py", line 186, in wrapper
       self.inlets = [_render_object(i, context) for i in self.inlets if attr.has(i)]
     File "/usr/local/lib/python3.8/dist-packages/airflow/lineage/__init__.py", line 186, in <listcomp>
       self.inlets = [_render_object(i, context) for i in self.inlets if attr.has(i)]
     File "/usr/local/lib/python3.8/dist-packages/airflow/lineage/__init__.py", line 74, in _render_object
       return structure(
     File "/usr/local/lib/python3.8/dist-packages/cattr/converters.py", line 223, in structure
       # Classes to Python primitives.
     File "", line 8, in structure_NoteBook
     File "/usr/local/lib/python3.8/dist-packages/cattr/converters.py", line 439, in _structure_union
       # optional with more than one parameter.
     File "/usr/local/lib/python3.8/dist-packages/cattr/dispatch.py", line 47, in _dispatch
       return self._function_dispatch.dispatch(cl)
     File "/usr/local/lib/python3.8/dist-packages/cattr/dispatch.py", line 121, in dispatch
       return handler(typ)
     File "/usr/local/lib/python3.8/dist-packages/cattr/converters.py", line 711, in gen_structure_mapping
     File "/usr/local/lib/python3.8/dist-packages/cattr/gen.py", line 353, in make_mapping_structure_fn
       val_handler = converter._structure_func.dispatch(val_type)
   ValueError: not enough values to unpack (expected 1, got 0)
   ```


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