Why single dispatch is not working

Question

Refer code below:

Why it is not working?
https://sololearn.com/compiler-playground/chb215v6YsD9/?ref=app

Answer 1

https://sololearn.com/compiler-playground/ct7tO9qK6w51/?ref=app

Answer 2

More on the topic on singledispatch, workaround for OOP and alternative libararies to use:

https://stackoverflow.com/questions/24601722/how-can-i-use-functools-singledispatch-with-instance-methods

Basically, for OOP, use singledispatchmethod
instead of singledispatch
https://sololearn.com/compiler-playground/clQkeTocrFe7/?ref=app

Answer 3

you need to specify what types they will handle ( the second and third registered functions ):

https://sololearn.com/compiler-playground/c46fmfprYlHV/?ref=app
or
https://sololearn.com/compiler-playground/ciHHzSk0uKLM/?ref=app

Answer 4

There's also a multipledispatch library:

https://sololearn.com/compiler-playground/cUKggWX2aiqx/?ref=app

Answer 5

Function overloading like this is actually inefficient and harder to use.

1. You are actually doing more work just to be able to use the same function name.

2. It's unclear what the function's return will be.

Why not just use different functions with more specifically descriptive names instead of insisting to use the same function name?

It's an anti-pattern. Remember that " just because you can doesn't mean you should "...

https://sololearn.com/compiler-playground/c6DM5TWwmOiF/?ref=app

Answer 6

Thanks Everyone for these great solutions!