How to: *args, **kwargs, *args

Question

I'm just creating a test function to see how kwargs and args work.  What if I want to have a function which uses:  string, args, *kwargs, **args2
I was using this simple test function which works:
def test(required, *args, *kwargs,):
    print(required)
    if args:
        print(args)
    if kwargs:
        print(kwargs)
test('Hello', 1, 2, 3, key1='value', key2=999)
If I want to add a secondary args to this....is it possible? Example adds *args2 after *kwargs.
def test(required, *args, *kwargs, *args2):
    print(required)
    if args:
        print(args)
    if kwargs:
        print(kwargs)
    if args2:
        print(args2)
test('Hello', 1, 2, 3, key1='value', key2=999, ??????)
I've tried calling it, *args2=xx, I've tried just adding numbers in the same format as args 1 after the kwargs.....but can't figure it out.

adrian miranda · Answer

You say:
 What if I want to have a function which uses: string, args, *kwargs, **args2
I don't believe that is allowed by python. You can have args and *kwargs, but nothing else can come after that. args will grab any unnamed arguments that weren't already listed in the function definition. kwargs will grab any keyword arguments that aren't listed earlier in the function definition. There would be nothing left over to go into args2.
Does that help?

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Michael Roberts

Michael Roberts

How to: *args, **kwargs, *args

1 Answer

adrian miranda

adrian miranda