gistfile1.py

class BaseHandler(RequestHandler):
	COOKIE_SESSION = 'sid'
	def get_current_user(self):
		sid = self.get_secure_cookie(COOKIE_SESSION)
		if not sid:
			sid = '%s' % uuid4()
			db.sessions.insert({'sid': sid, 'date_created': datetime.datetime.now())
			return False
		session = db.session.find_one({'sid': sid})
		return sid

class UserHandler(BaseHandler):
	@authenticated
	def get_user_profile(self):
		session = self.get_current_user()
		user = db.users.find_one({'email': session['email']})
		return user

	@authenticated
	def update_user_profile(self, **kwargs):
		session = self.get_current_user()
		db.users.update(**kwargs)
		return True


# а ты тут используешь
class UserProfileRoute(UserHandler):
	def get(self):
		user_profile = self.get_user_profile()
		self.render('profile/user_profile.html', **user_profile)

class UserProfileUpdateRoute(UserHandler):
	def get(self):
		update_fields = {arg: self.get_arguments(arg) for arg in ['email', 'birthday', 'about']}
		self.update_user_profile(**update_fields)
		self.write("success!")