Datasets:

THULab
/

makermods_so101_merged_20260701_fixed

Exception:    SplitsNotFoundError
Message:      The split names could not be parsed from the dataset config.
Traceback:    Traceback (most recent call last):
                File "tsfile/tsfile_py_cpp.pyx", line 567, in tsfile.tsfile_py_cpp.tsfile_reader_new_c
              tsfile.exceptions.FileOpenError: 28: 
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 286, in get_dataset_config_info
                  for split_generator in builder._split_generators(
                                         ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      StreamingDownloadManager(base_path=builder.base_path, download_config=download_config)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/tsfile/tsfile.py", line 271, in _split_generators
                  scan = self._scan_metadata(all_files)
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/tsfile/tsfile.py", line 318, in _scan_metadata
                  with self._open_reader(file) as reader:
                       ~~~~~~~~~~~~~~~~~^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/tsfile/tsfile.py", line 742, in _open_reader
                  return TsFileReader(file)
                File "tsfile/tsfile_reader.pyx", line 323, in tsfile.tsfile_reader.TsFileReaderPy.__init__
              SystemError: <class '_weakrefset.WeakSet'> returned a result with an exception set
              
              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/split_names.py", line 68, in compute_split_names_from_streaming_response
                  for split in get_dataset_split_names(
                               ~~~~~~~~~~~~~~~~~~~~~~~^
                      path=dataset,
                      ^^^^^^^^^^^^^
                      config_name=config,
                      ^^^^^^^^^^^^^^^^^^^
                      token=hf_token,
                      ^^^^^^^^^^^^^^^
                  )
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 340, in get_dataset_split_names
                  info = get_dataset_config_info(
                      path,
                  ...<6 lines>...
                      **config_kwargs,
                  )
                File "/usr/local/lib/python3.14/site-packages/datasets/inspect.py", line 291, in get_dataset_config_info
                  raise SplitsNotFoundError("The split names could not be parsed from the dataset config.") from err
              datasets.inspect.SplitsNotFoundError: The split names could not be parsed from the dataset config.

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SO101 Merged 20260701 Fixed TsFile

This repository contains the numeric time-series portion of makermods/so101_merged_20260701_fixed, a LeRobot v3.0 SO follower robot dataset.

Source And Attribution

Original dataset: makermods/so101_merged_20260701_fixed
Original author, repository owner, uploader, and contributor: makermods
License: Apache-2.0
Robot: so_follower; LeRobot version: v3.0
Split: train; 20 episodes, 16,723 rows, 2 tasks, sampled at 30 fps
Task 0: place the red cube into the box (9 episodes, 5,854 rows)
Task 1: Trying Lerobot (11 episodes, 10,869 rows)
Source numeric layout: data/chunk-{chunk_index:03d}/file-{file_index:03d}.parquet
The source card provides no paper, external homepage, or completed citation.

TsFile Data

Path: data/makermods_so101_merged_20260701_fixed.tsfile
Table: makermods_so101_merged_20260701_fixed
Layout: one TsFile for the train split, with all 20 episodes represented by TAG values
Rows: 16,723
Time precision: milliseconds
Source Parquet size: 499,985 bytes
TsFile size: 310,689 bytes
TsFile/source size ratio: 0.621

Schema And Mapping

Time = round(timestamp * 1000) milliseconds. Time starts at zero and is strictly increasing in every episode. The source timestamp is omitted after the mapping because it can be recovered as Time / 1000 seconds.

TsFile column	Role	Type	Source mapping
`Time`	TIME	TIMESTAMP	`round(timestamp * 1000)` ms
`episode_index`	TAG	STRING	Original INT64 episode index
`task_index`	TAG	STRING	Original INT64 task index
`frame_index`	FIELD	INT64	Preserved
`sample_index`	FIELD	INT64	Renamed from `index`
`action_0` ... `action_5`	FIELD	FLOAT	Flattened from `action[6]`
`observation_state_0` ... `observation_state_5`	FIELD	FLOAT	Flattened from `observation.state[6]`

The six action and state dimensions are shoulder_pan.pos, shoulder_lift.pos, elbow_flex.pos, wrist_flex.pos, wrist_roll.pos, and gripper.pos. Dots in source names become underscores. No numeric row, episode, task, action dimension, or state dimension is dropped.

Source Videos

Videos are not included in this TsFile repository. Both original AV1 streams are 640x480 at 30 fps without audio, and each stream is stored as one MP4:

The general source layout is videos/{video_key}/chunk-{chunk_index:03d}/file-{file_index:03d}.mp4. Use episode_index, frame_index, and the original episode metadata to align numeric samples with video frames.

Read Example

from tsfile import TsFileReader

reader = TsFileReader("data/makermods_so101_merged_20260701_fixed.tsfile")
with reader.query_table(
    "makermods_so101_merged_20260701_fixed",
    ["episode_index", "task_index", "frame_index", "sample_index", "action_0"],
    batch_size=65536,
) as result:
    print(result.read_arrow_batch().to_pandas().head())
reader.close()

Citation

The source dataset does not provide a paper or completed citation. Cite the original makermods/so101_merged_20260701_fixed dataset and its publisher, makermods.

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