Function maybe_iso8601

celery/utils/time.py:318–324

Either ``datetime | str -> datetime`` or ``None -> None``.

(dt: datetime | str | None)

def maybe_iso8601(dt: datetime | str | None) -> None | datetime:
    """Either ``datetime | str -> datetime`` or ``None -> None``."""
    if not dt:
        return
    if isinstance(dt, datetime):
        return dt
    return isoparse(dt)


def is_naive(dt: datetime) -> bool: