oop - Abstract attributes in Python -

what shortest / elegant way implement following scala code abstract attribute in python?

abstract class controller {      val path: string  }

a subclass of controller enforced define "path" scala compiler. subclass this:

class mycontroller extends controller {      override val path = "/home"  }

python has built-in exception this, though won't encounter exception until runtime.

class base(object):     @property     def path(self):         raise notimplementederror   class subclass(base):     path = 'blah'

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