util.py 文件源码

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

    Args:
        f: Any function taking a single iterable argument

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

    Example:
        $ def f(a):
        $     return a[0] + a[1] + a[2]
        $
        $ f([1, 2, 3])  # 6
        $ g = unsplat(f)
        $ g(1, 2, 3)  # 6
    """

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

    return unsplatted