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Python/Descriptors

• Described in the datamodel: https://docs.python.org/3/reference/datamodel.html
  • https://docs.python.org/3/reference/datamodel.html#implementing-descriptors
• Applied when instance of class containing the method == descriptor, appears in an owner class
  • __get__ get value of attribute for instance or class
  • __set__ set value of instance (data descriptor)
  • __delete__ delete attribute on instance
  • "Descriptor" is an object attribute with binding behavior
  • a.x
    • == x.__get__(a)
    • == type(a).__dict__['x'].__get__(a, type(a))
    • etc.
  • No get means it returns the object itself
• @staticmethod & @classmethod are non-data descriptors
• Non-data descriptors can be overridden **

— Kunal