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Python/Descriptors

• #+title: 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