rohitg00/ai-engineering-from-scratch · error · ValueError

record root must be an object

Error message

record root must be an object

What it means

Error "record root must be an object" thrown in rohitg00/ai-engineering-from-scratch.

Source

Thrown at certifications/claude/lessons/01-claude-product-and-model-landscape/code/main.py:209

    return isinstance(value, str) and value.startswith(OFFICIAL_DOC_PREFIXES)


def _nonempty_strings(value: Any) -> bool:
    return isinstance(value, list) and bool(value) and all(isinstance(item, str) and item.strip() for item in value)


def _iso_date(value: Any) -> bool:
    try:
        date.fromisoformat(value)
        return isinstance(value, str)
    except (TypeError, ValueError):
        return False


def load_record(path: Path) -> dict[str, Any]:
    value = json.loads(path.read_text(encoding="utf-8"))
    if not isinstance(value, dict):
        raise ValueError("record root must be an object")
    return value


if __name__ == "__main__":
    path = Path(__file__).parents[1] / "outputs" / "product-selection-record.json"
    record = load_record(path)
    print(json.dumps({"valid": not validate_record(record), "recommendation": recommend(record)}, indent=2))

View on GitHub (pinned to 39ea8a1c6d)

When it happens

Trigger: Thrown at certifications/claude/lessons/01-claude-product-and-model-landscape/code/main.py:209 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of rohitg00/ai-engineering-from-scratch@39ea8a1c6d (2026-08-26). Data as JSON: /api/errors/3b52ae3745b0bf7f. Report an issue: GitHub.