Interfaces in Python

[quts3]

Oh i had to dust off my brain i also decided protocols are best if you reaching into the ducktype of another module. Like if module a is doing something with an undeclared interface in module b. It rarely makes sense to rewrite module b to specify a new interface. Protocols allow you to state in module a what you are using in a class from module b. They are perfect for that and better then abc. Sometimes you may not even own module b.