forked from SVIG/python-bootcamp
51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
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class Vault:
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def __init__(self):
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self._treasure = "gold"
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self._known_good_copy = self.__dict__.copy()
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def __getattribute__(self, name):
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if name == "treasure":
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if self.__dict__ != self._known_good_copy:
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print("Attribute deleted!")
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return self._treasure
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else:
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return object.__getattribute__(self, name)
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def __setattr__(self, name, value):
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if name != "_treasure" and name != "_known_good_copy":
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print("Attribute deletion detected!")
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self._known_good_copy = self.__dict__.copy()
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object.__setattr__(self, name, value)
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v = Vault()
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Vault.treasure = " haha monkeypatched"
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print(v.treasure)
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'''
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class Vault:
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def __init__(self):
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self._treasure = "gold"
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self._known_good_copy = self.__dict__.copy()
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def __get__(self, instance, owner):
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if instance is None:
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return self
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else:
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if instance.__dict__ != self._known_good_copy:
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print("Attribute deleted!")
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return self._treasure
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def __set__(self, instance, value):
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print("Attribute deletion detected!")
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self._known_good_copy = instance.__dict__.copy()
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def __delete__(self, instance):
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print("Attribute deletion detected!")
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self._known_good_copy = instance.__dict__.copy()
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def __set_name__(self, owner, name):
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self.name = name
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v = Vault()
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Vault._treasure = " haha monkeypatched"
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print(v._treasure)
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'''
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