def do_prepare_twophase(self, connection, xid):
        connection.execute(xid % "PREPARE TRANSACTION '%s'")
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/dialects/postgresql/base.py/PGDialect.do_prepare_twophase/swapped operands of `%`