Dataset Viewer issue: TypeError: Couldn't cast array

#5
by albertvillanova HF staff - opened

The dataset viewer is not working.

Error details:

Error code:   DatasetGenerationError
Exception:    TypeError
Message:      Couldn't cast array of type
              struct<identifier: int64, comment: string, is_minor_edit: bool, editor: struct<identifier: int64, name: string, is_anonymous: bool, edit_count: int64, groups: list<item: string>, is_patroller: bool, date_started: timestamp[s], is_admin: bool>, number_of_characters: int64, size: struct<value: int64, unit_text: string>, tags: list<item: string>, scores: struct<revertrisk: struct<probability: struct<false: double, true: double>, prediction: bool>>, maintenance_tags: struct<>, noindex: bool>
              to
              {'identifier': Value(dtype='int64', id=None), 'comment': Value(dtype='string', id=None), 'is_minor_edit': Value(dtype='bool', id=None), 'scores': {'revertrisk': {'probability': {'false': Value(dtype='float64', id=None), 'true': Value(dtype='float64', id=None)}, 'prediction': Value(dtype='bool', id=None)}}, 'editor': {'identifier': Value(dtype='int64', id=None), 'name': Value(dtype='string', id=None), 'edit_count': Value(dtype='int64', id=None), 'groups': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'date_started': Value(dtype='timestamp[s]', id=None), 'is_patroller': Value(dtype='bool', id=None), 'is_bot': Value(dtype='bool', id=None), 'is_admin': Value(dtype='bool', id=None), 'is_anonymous': Value(dtype='bool', id=None), 'has_advanced_rights': Value(dtype='bool', id=None)}, 'number_of_characters': Value(dtype='int64', id=None), 'size': {'value': Value(dtype='int64', id=None), 'unit_text': Value(dtype='string', id=None)}, 'noindex': Value(dtype='bool', id=None), 'maintenance_tags': {'pov_count': Value(dtype='int64', id=None), 'update_count': Value(dtype='int64', id=None), 'citation_needed_count': Value(dtype='int64', id=None)}, 'tags': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'is_breaking_news': Value(dtype='bool', id=None)}
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 2013, in _prepare_split_single
                  writer.write_table(table)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/arrow_writer.py", line 585, in write_table
                  pa_table = table_cast(pa_table, self._schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2302, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2261, in cast_table_to_schema
                  arrays = [cast_array_to_feature(table[name], feature) for name, feature in features.items()]
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2261, in <listcomp>
                  arrays = [cast_array_to_feature(table[name], feature) for name, feature in features.items()]
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 1802, in wrapper
                  return pa.chunked_array([func(chunk, *args, **kwargs) for chunk in array.chunks])
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 1802, in <listcomp>
                  return pa.chunked_array([func(chunk, *args, **kwargs) for chunk in array.chunks])
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2122, in cast_array_to_feature
                  raise TypeError(f"Couldn't cast array of type\n{_short_str(array.type)}\nto\n{_short_str(feature)}")
              TypeError: Couldn't cast array of type
              struct<identifier: int64, comment: string, is_minor_edit: bool, editor: struct<identifier: int64, name: string, is_anonymous: bool, edit_count: int64, groups: list<item: string>, is_patroller: bool, date_started: timestamp[s], is_admin: bool>, number_of_characters: int64, size: struct<value: int64, unit_text: string>, tags: list<item: string>, scores: struct<revertrisk: struct<probability: struct<false: double, true: double>, prediction: bool>>, maintenance_tags: struct<>, noindex: bool>
              to
              {'identifier': Value(dtype='int64', id=None), 'comment': Value(dtype='string', id=None), 'is_minor_edit': Value(dtype='bool', id=None), 'scores': {'revertrisk': {'probability': {'false': Value(dtype='float64', id=None), 'true': Value(dtype='float64', id=None)}, 'prediction': Value(dtype='bool', id=None)}}, 'editor': {'identifier': Value(dtype='int64', id=None), 'name': Value(dtype='string', id=None), 'edit_count': Value(dtype='int64', id=None), 'groups': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'date_started': Value(dtype='timestamp[s]', id=None), 'is_patroller': Value(dtype='bool', id=None), 'is_bot': Value(dtype='bool', id=None), 'is_admin': Value(dtype='bool', id=None), 'is_anonymous': Value(dtype='bool', id=None), 'has_advanced_rights': Value(dtype='bool', id=None)}, 'number_of_characters': Value(dtype='int64', id=None), 'size': {'value': Value(dtype='int64', id=None), 'unit_text': Value(dtype='string', id=None)}, 'noindex': Value(dtype='bool', id=None), 'maintenance_tags': {'pov_count': Value(dtype='int64', id=None), 'update_count': Value(dtype='int64', id=None), 'citation_needed_count': Value(dtype='int64', id=None)}, 'tags': Sequence(feature=Value(dtype='string', id=None), length=-1, id=None), 'is_breaking_news': Value(dtype='bool', id=None)}
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1391, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 990, in stream_convert_to_parquet
                  builder._prepare_split(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1884, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 2040, in _prepare_split_single
                  raise DatasetGenerationError("An error occurred while generating the dataset") from e
              datasets.exceptions.DatasetGenerationError: An error occurred while generating the dataset

I am investigating it.

Wikimedia org

Thanks @albertvillanova !

We'll also be looking at it, let us know if we need to change anything.

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