def order_pythonic(sentence: str) -> str:
    """Returns ordered sentence (pythonic).

    Examples:
        >>> assert order_pythonic("") == ""
        >>> assert order_pythonic("is2 Thi1s T4est 3a") == "Thi1s is2 3a T4est"
    """
    return " ".join(
        sorted(sentence.split(), key=lambda x: "".join(filter(str.isdigit, x)))
    )