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FennMai 723bd71cf2 🐛 fix v30_to_v21 ArrowTypeError on pandas extension dtypes

`table.slice(...).to_pandas()` produces pandas ExtensionArrays for
`array[float32]` columns (e.g. `observation.states.end.orientation`)
on newer pandas/pyarrow combos, which then fail in
`pa.Table.from_pandas` inside `Dataset.from_pandas(...).to_parquet(...)`.

Skip the pandas round-trip and wrap the `pa.Table` slice in a
`Dataset` directly with `Dataset(episode_table).to_parquet(...)`.
This preserves the HuggingFace dataset metadata that `Dataset.to_parquet`
writes, while avoiding the ExtensionArray crash. No version pin on
datasets/pyarrow needed.

Closes #87

2026-04-30 07:03:03 +00:00

v16_to_v20

✨ add version convert collections (#63 )

2025-10-04 16:49:19 +08:00

v20_to_v21

✨ add version convert collections (#63 )

2025-10-04 16:49:19 +08:00

v21_to_v20

✨ add version convert collections (#63 )

2025-10-04 16:49:19 +08:00

v21_to_v30

🐛 fix dataset version convert (#75 )

2025-12-03 12:53:59 +08:00

v30_to_v21

🐛 fix v30_to_v21 ArrowTypeError on pandas extension dtypes

2026-04-30 07:03:03 +00:00

README.md

✨ add version convert collections (#63 )

2025-10-04 16:49:19 +08:00

README.md

LeRobot Dataset Version Convert

The LeRobot Dataset has undergone multiple versions over time, with significant improvements in data storage and reading performance in each iteration. The versions of the dataset are as follows: v1.0-v1.6, v2.0, v2.1, v3.0.

Version	Release Date	Version Conversion Link
v1.0-v1.6	2024-07-23	---
v2.0	2024-11-30	v1.6 to v2.0, v2.1 to v2.0
v2.1	2025-02-25	v2.0 to v2.1
v3.0	2025-09-15	v2.1 to v3.0