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The dataset generation failed
Error code:   DatasetGenerationError
Exception:    TypeError
Message:      int() argument must be a string, a bytes-like object or a real number, not 'NoneType'
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1531, in _prepare_split_single
                  for key, record in generator:
                                     ^^^^^^^^^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 613, in wrapped
                  for item in generator(*args, **kwargs):
                              ~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/webdataset/webdataset.py", line 127, in _generate_examples
                  for example_idx, example in enumerate(self._get_pipeline_from_tar(tar_path, tar_iterator)):
                                              ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/webdataset/webdataset.py", line 32, in _get_pipeline_from_tar
                  for filename, f in tar_iterator:
                                     ^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/utils/track.py", line 49, in __iter__
                  for x in self.generator(*self.args):
                           ~~~~~~~~~~~~~~^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/utils/file_utils.py", line 1405, in _iter_from_urlpath
                  with xopen(urlpath, "rb", download_config=download_config, block_size=0) as f:
                       ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/utils/file_utils.py", line 982, in xopen
                  file_obj = fs.open(paths[0], mode)
                File "<string>", line 3, in open
                File "/usr/local/lib/python3.14/unittest/mock.py", line 1176, in __call__
                  return self._mock_call(*args, **kwargs)
                         ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/unittest/mock.py", line 1180, in _mock_call
                  return self._execute_mock_call(*args, **kwargs)
                         ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/unittest/mock.py", line 1247, in _execute_mock_call
                  result = effect(*args, **kwargs)
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 786, in wrapped
                  tracker.files[urlpath] = {"read": 0, "size": int(f.size)}
                                                               ~~~^^^^^^^^
              TypeError: int() argument must be a string, a bytes-like object or a real number, not 'NoneType'
              
              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 1369, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                                                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      builder, max_dataset_size_bytes=max_dataset_size_bytes
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
                  builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
                  ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1393, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~^
                      gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  ):
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1571, 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

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jsonl
unknown
__key__
string
__url__
string
"eyJpZCI6IjAwNDc3NTYzIiwibmFtZSI6IjdiODEyNzZjZjk5MmZjNjAxMjIyIiwiaHVtYW5fY291bnQiOjEsImZwcyI6MzAuMCw(...TRUNCATED)
metadata
"hf://datasets/shadowlynx92/motion_example_0801_dance_tar@50b40b4d8638e16f431f9152f77dbc89b3f1dd6b/m(...TRUNCATED)
"eyJpZCI6IjAwNDc3NTYzIiwibmFtZSI6IjdiODEyNzZjZjk5MmZjNjAxMjIyIiwiaHVtYW5fY291bnQiOjEsImZwcyI6MzAuMCw(...TRUNCATED)
metadata_caption
"hf://datasets/shadowlynx92/motion_example_0801_dance_tar@50b40b4d8638e16f431f9152f77dbc89b3f1dd6b/m(...TRUNCATED)
"eyJpZCI6IjAwNDc3NTYzIiwibmFtZSI6IjdiODEyNzZjZjk5MmZjNjAxMjIyIiwiaHVtYW5fY291bnQiOjEsImZwcyI6MzAuMCw(...TRUNCATED)
metadata_classification
"hf://datasets/shadowlynx92/motion_example_0801_dance_tar@50b40b4d8638e16f431f9152f77dbc89b3f1dd6b/m(...TRUNCATED)
"eyJpZCI6IjAwNDc3NTYzIiwibmFtZSI6IjdiODEyNzZjZjk5MmZjNjAxMjIyIiwiaHVtYW5fY291bnQiOjEsImZwcyI6MzAuMCw(...TRUNCATED)
metadata_objects
"hf://datasets/shadowlynx92/motion_example_0801_dance_tar@50b40b4d8638e16f431f9152f77dbc89b3f1dd6b/m(...TRUNCATED)
"eyJpZCI6IjAwNDc3NTYzIiwibmFtZSI6IjdiODEyNzZjZjk5MmZjNjAxMjIyIiwiaHVtYW5fY291bnQiOjEsImZwcyI6MzAuMCw(...TRUNCATED)
metadata_render
"hf://datasets/shadowlynx92/motion_example_0801_dance_tar@50b40b4d8638e16f431f9152f77dbc89b3f1dd6b/m(...TRUNCATED)
null
human_motion/00466/003b8235b62026a971ec
"hf://datasets/shadowlynx92/motion_example_0801_dance_tar@50b40b4d8638e16f431f9152f77dbc89b3f1dd6b/m(...TRUNCATED)
null
human_motion/00466/005113477d598581d2b5
"hf://datasets/shadowlynx92/motion_example_0801_dance_tar@50b40b4d8638e16f431f9152f77dbc89b3f1dd6b/m(...TRUNCATED)
null
human_motion/00466/015b4dd94223b7cb9134
"hf://datasets/shadowlynx92/motion_example_0801_dance_tar@50b40b4d8638e16f431f9152f77dbc89b3f1dd6b/m(...TRUNCATED)
null
human_motion/00466/023358c7df25d32262bb
"hf://datasets/shadowlynx92/motion_example_0801_dance_tar@50b40b4d8638e16f431f9152f77dbc89b3f1dd6b/m(...TRUNCATED)
null
human_motion/00466/0251d89d7da5211f18c5
"hf://datasets/shadowlynx92/motion_example_0801_dance_tar@50b40b4d8638e16f431f9152f77dbc89b3f1dd6b/m(...TRUNCATED)
End of preview.

Motion Example 0801 Dance

This is the dance subset of Motion Example 0801. It contains 291,952 motion examples in 30 dance categories, selected using motion_type.startswith("dance_") in metadata_classification.jsonl. The original sample IDs, names, relative paths, and metadata contents are preserved. The separate fitness_dance_workout category is not part of this subset.

Archives

The dataset is stored in 286 uncompressed tar archives, retaining the original directory numbers from 00466 to 00751:

  • motion_example_0801_dance_00466.tar: 645 examples and all five metadata files.
  • motion_example_0801_dance_00467.tar through motion_example_0801_dance_00750.tar: 1,024 examples per archive.
  • motion_example_0801_dance_00751.tar: 491 examples.

Each example contains three files:

human_motion/<original_shard>/<name>.pt
motion_caption/<original_shard>/<name>.json
rendered_videos/<original_shard>/<name>.mp4

The first archive also contains:

metadata.jsonl
metadata_caption.jsonl
metadata_classification.jsonl
metadata_objects.jsonl
metadata_render.jsonl

Each metadata file has 291,952 rows in matching sample order. Paths are relative to the extracted dataset directory. Original IDs range from 00477563 to 00769514; they have not been renumbered.

video_path remains empty. Stickman videos are referenced by rendering_path in metadata_render.jsonl; they are visualizations of the SMPL motion. video_caption in metadata_caption.jsonl contains the previously composed, gender-neutral descriptions of the two source clips, using one of eight transition templates. The captions and motion segment JSON files are unchanged from the full dataset.

Verification and extraction

archive_index.tsv lists the archive names and example counts. SHA256SUMS contains the SHA256 checksum for each tar archive. After downloading all archives:

sha256sum -c SHA256SUMS
mkdir -p motion_example_0801_dance
for archive in motion_example_0801_dance_*.tar; do
    tar -xf "$archive" -C motion_example_0801_dance
done

The archives contain the three data directories and the five metadata files listed above.

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