@classmethod
	def load(klass, request, response):
		try:
			id = request.cookies['SID'][1:-SIG_LEN-1]
		except KeyError:
			raise NoSIDError
		else:
			c = SignedCookie(SECRET_KEY + id)
			c.load(request.environ['HTTP_COOKIE'])
			try:
				user = User.get_by_key_name(c['user'].value)
			except KeyError:
				user = None
			session = klass(user, response)
			session.cookies = c
			return session
Load the session cookies from the request,
dataset/ETHPy150Open aht/suas/suas/session.py/CookieSession.load