Алмаз Сейтхазин (КФ МГУ, кафедра НДС) ClassCounter 10837			david_Yakhin_312 ClassCounter 10840
t	1	class Generative(type):	t	1	class Generative(type):
	2	_counter = 0		2	_counter = 0
	3			3
	4	class _GenerationDescriptor:		4	class _GenerationDescriptor:
	5			5
	6	def __get__(self, obj, owner=None):		6	def __get__(self, obj, owner=None):
	7	if owner is None:		7	if owner is None:
	8	return None		8	return None
	9	meta = owner.__class__		9	meta = owner.__class__
	10	return getattr(meta, '_counter', None)		10	return getattr(meta, '_counter', None)
	11			11
	12	def __set__(self, obj, value):		12	def __set__(self, obj, value):
	13	raise AttributeError("can't set attribute 'generation'")		13	raise AttributeError("can't set attribute 'generation'")
	14			14
	15	def __delete__(self, obj):		15	def __delete__(self, obj):
	16	raise AttributeError("can't delete attribute 'generation'")		16	raise AttributeError("can't delete attribute 'generation'")
	17			17
	18	def __new__(mcls, name, bases, namespace, **kwargs):		18	def __new__(mcls, name, bases, namespace, **kwargs):
	19	cls = super().__new__(mcls, name, bases, namespace, **kwargs)		19	cls = super().__new__(mcls, name, bases, namespace, **kwargs)
	20	mcls._counter += 1		20	mcls._counter += 1
	21	type.__setattr__(cls, 'generation', mcls._GenerationDescriptor()		21	type.__setattr__(cls, 'generation', mcls._GenerationDescriptor()
	>	)		>	)
	22	return cls		22	return cls
	23			23
	24	def __setattr__(cls, name, value):		24	def __setattr__(cls, name, value):
	25	if name == 'generation':		25	if name == 'generation':
	26	raise AttributeError("can't set attribute 'generation'")		26	raise AttributeError("can't set attribute 'generation'")
	27	super().__setattr__(name, value)		27	super().__setattr__(name, value)
	28			28
	29	def __delattr__(cls, name):		29	def __delattr__(cls, name):
	30	if name == 'generation':		30	if name == 'generation':
	31	raise AttributeError("can't delete attribute 'generation'")		31	raise AttributeError("can't delete attribute 'generation'")
	32	super().__delattr__(name)		32	super().__delattr__(name)
	33			33
	34	class Generative(type):		34	class Generative(type):
	35	_counter = 0		35	_counter = 0
	36			36
	37	class _GenerationDescriptor:		37	class _GenerationDescriptor:
	38			38
	39	def __get__(self, obj, owner=None):		39	def __get__(self, obj, owner=None):
	40	if owner is None:		40	if owner is None:
	41	return None		41	return None
	42	meta = owner.__class__		42	meta = owner.__class__
	43	return getattr(meta, '_counter', None)		43	return getattr(meta, '_counter', None)
	44			44
	45	def __set__(self, obj, value):		45	def __set__(self, obj, value):
	46	raise AttributeError("can't set attribute 'generation'")		46	raise AttributeError("can't set attribute 'generation'")
	47			47
	48	def __delete__(self, obj):		48	def __delete__(self, obj):
	49	raise AttributeError("can't delete attribute 'generation'")		49	raise AttributeError("can't delete attribute 'generation'")
	50			50
	51	def __new__(mcls, name, bases, namespace, **kwargs):		51	def __new__(mcls, name, bases, namespace, **kwargs):
	52	cls = super().__new__(mcls, name, bases, namespace, **kwargs)		52	cls = super().__new__(mcls, name, bases, namespace, **kwargs)
	53	mcls._counter += 1		53	mcls._counter += 1
	54	type.__setattr__(cls, 'generation', mcls._GenerationDescriptor()		54	type.__setattr__(cls, 'generation', mcls._GenerationDescriptor()
	>	)		>	)
	55	return cls		55	return cls
	56			56
	57	def __setattr__(cls, name, value):		57	def __setattr__(cls, name, value):
	58	if name == 'generation':		58	if name == 'generation':
	59	raise AttributeError("can't set attribute 'generation'")		59	raise AttributeError("can't set attribute 'generation'")
	60	super().__setattr__(name, value)		60	super().__setattr__(name, value)
	61			61
	62	def __delattr__(cls, name):		62	def __delattr__(cls, name):
	63	if name == 'generation':		63	if name == 'generation':
	64	raise AttributeError("can't delete attribute 'generation'")		64	raise AttributeError("can't delete attribute 'generation'")
	65	super().__delattr__(name)		65	super().__delattr__(name)

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