[XiaoHongbo-Hope]

Purpose

pypaimon[lerobot] pins LeRobot below 0.5, preventing installation alongside current LeRobot. Newer LeRobot also exposes DatasetInfo instead of a dict, which breaks local and Hub imports.

Support LeRobot 0.6.x with its dataset extra on Python 3.12+, retain 0.4.x on Python 3.10–3.11, and normalize import and custom-reader metadata through to_dict() when available. Preserve original info JSON extensions for local and Hub imports. Add a versioned CI matrix for import, metadata and training reads. The LeRobot Dataset v3 storage contract is unchanged.

Tests

• LeRobot 0.4.4 / Python 3.11: 99 passed, 1 skipped.
• LeRobot 0.6.1 / Python 3.12: 99 passed, 1 skipped, 79 subtests passed.
• LeRobot 0.6.0 previously passed 98 tests; the latest Hub fix has not been rerun on 0.6.0.
• Coverage includes real dataset creation/import, Hub metadata loading (mocked download, real LeRobot objects), standard metadata in custom readers, info extension preservation, images/video, tags, pickle and DataLoader reads. New-version dependency installation and checks passed.
• CI covers 0.4.4 on Python 3.10 and 0.6.0/0.6.1 on Python 3.12. Repository flake8, Python 3.6 syntax compilation and git diff --check passed.