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python-bootcamp/test3.py
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2023-04-13 15:42:15 -04:00
class Vault:
def __init__(self):
self._treasure = "gold"
self._known_good_copy = self.__dict__.copy()
def __getattribute__(self, name):
if name == "treasure":
if self.__dict__ != self._known_good_copy:
print("Attribute deleted!")
return self._treasure
else:
return object.__getattribute__(self, name)
def __setattr__(self, name, value):
if name != "_treasure" and name != "_known_good_copy":
print("Attribute deletion detected!")
self._known_good_copy = self.__dict__.copy()
object.__setattr__(self, name, value)
v = Vault()
Vault.treasure = " haha monkeypatched"
print(v.treasure)
'''
class Vault:
def __init__(self):
self._treasure = "gold"
self._known_good_copy = self.__dict__.copy()
def __get__(self, instance, owner):
if instance is None:
return self
else:
if instance.__dict__ != self._known_good_copy:
print("Attribute deleted!")
return self._treasure
def __set__(self, instance, value):
print("Attribute deletion detected!")
self._known_good_copy = instance.__dict__.copy()
def __delete__(self, instance):
print("Attribute deletion detected!")
self._known_good_copy = instance.__dict__.copy()
def __set_name__(self, owner, name):
self.name = name
v = Vault()
Vault._treasure = " haha monkeypatched"
print(v._treasure)
'''