Interactive partial function completion prompt for interactive cli tools

gistfile1.txt

#!/usr/bin/env python3.6
import inspect

def cli_prompt_decorator(func):
    f_spec = inspect.getfullargspec(func)

    def wrapper(*args):
        arg_list = list(args)

        if not len(arg_list) >= len(f_spec.args):
            print("\nYou have not provided enough arguments from function: %s" % func.__name__)

            unspecified_args = f_spec.args[len(args):]

            for a in unspecified_args:
                new_a_val = input("Please enter a value for argument %s: " % a)
                arg_type = f_spec.annotations[a]
                cast_arg = arg_type(new_a_val)
                arg_list.append(cast_arg)

        return func(*arg_list)

    return wrapper
                

@cli_prompt_decorator
def print_something(some_string: str):
    print(some_string)


@cli_prompt_decorator
def add_two_vals(first_value: int, second_value: int):
    return first_value + second_value

print_something('abcde')
print_something()

print(add_two_vals(1,2))

print(add_two_vals(1))

print(add_two_vals())