Metaclasses(Draft)

Attributes, Lookup, Bound Methods

• code/attributes.py

• code/descriptor-bound-method.py

Todo

• class

  • __new__

  • __init__

  • __getattr__(self, name)

    fallback if attr found nowhere (neither instance, nor class hierarchy)

  • __getattribute__

    called before lookup

    if raises AttributeError, python calls __getattr__

  • super

  • descriptors

    https://docs.python.org/3/howto/descriptor.html

    descriptor protocol -> doc

    __get__, __set__, __delete__

    livehack: write own @property

    code/descriptor.py

    code/descriptor-bound-method.py (function vs. bound method)

    class method is a plain function. actually a descriptor that returns a bound method on __get__

    • f.bar()

    • f.__dict__ is empty

    • bar found in Foo -> function

    • ich checks nimmer