def close(self):
		'''关闭与数据库的连接'''
		if VERBOSE:
			print 'Database connection CLOSE.'
		self.conn.close()
def __init__(self, translations_path, domain_name: str):
        super().__init__()
        self.update_types = self.process_update_types()

        self.path = translations_path
        self.domain = domain_name
        self.translations = self.find_translations()