lib_functions.py 文件源码

def curry(func):
    """
    Return the curried version of a function.
    """

    spec = inspect.getfullargspec(func)
    if spec.varargs or spec.varkw or spec.kwonlyargs:
        raise TypeError('cannot curry a variadic function')

    def incomplete_factory(arity, used_args):
        return lambda *args: (
            func(*(used_args + args))
            if len(used_args) + len(args) >= arity
            else incomplete_factory(arity, used_args + args)
        )
    return incomplete_factory(len(spec.args), ())