def _safe(self, fn):
        try:
            fn()
        except (__HOLE__, KeyboardInterrupt):
            raise
        except Exception as e:
            warnings.warn(
                "testing_reaper couldn't "
                "rollback/close connection: %s" % e)
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/testing/engines.py/ConnectionKiller._safe