Алтухов Егор, 321 группа IndexProp 7927			Гудов Дмитрий 321 IndexProp 8202
f	1	class Sequence:	f	1	class Sequence:
n	2	_sentinel = object()	n	2	_is_none = object()
	3			3
n	4	def __init__(self, value=_sentinel):	n	4	def __init__(self, value=_is_none):
	5	if value is self._sentinel:		5	if value is self._is_none:
	6	self._seq = []		6	self._sequence = []
	7	else:		7	else:
	8	self.sequence = value		8	self.sequence = value
	9			9
	10	@property		10	@property
	11	def sequence(self):		11	def sequence(self):
n	12	return self._seq	n	12	return self._sequence
	13			13
	14	@sequence.setter		14	@sequence.setter
	15	def sequence(self, value):		15	def sequence(self, value):
	16	try:		16	try:
	17	value[0]		17	value[0]
n	18	self._seq = value	n	18	self._sequence = value
	19	except Exception:		19	except Exception:
n	20	self._seq = [value]	n	20	self._sequence = [value]
	21			21
	22	@sequence.deleter		22	@sequence.deleter
	23	def sequence(self):		23	def sequence(self):
t	24	self._seq = type(self._seq)()	t	24	self._sequence = type(self._sequence)()

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