util.py 文件源码

def splat(f: Callable[..., A]) -> Callable[[Iterable], A]:
    """Convert a function taking multiple arguments into a function taking a single iterable argument.

    Args:
        f: Any function

    Returns:
        A function that accepts a single iterable argument. Each element of this iterable argument is passed as an
        argument to ``f``.

    Example:
        $ def f(a, b, c):
        $     return a + b + c
        $
        $ f(1, 2, 3)  # 6
        $ g = splat(f)
        $ g([1, 2, 3])  # 6
    """

    def splatted(args):
        return f(*args)

    return splatted