def close(self):
		'''关闭与数据库的连接'''
		if VERBOSE:
			print 'Database connection CLOSE.'
		self.conn.close()
def finalize_options(self):
    ret = InstallCommandBase.finalize_options(self)
    self.install_headers = os.path.join(self.install_purelib,
                                        'tensorflow', 'include')
    return ret