adbapi.py 文件源码

def start(self):
        """Start the connection pool.

        If you are using the reactor normally, this function does *not*
        need to be called.
        """

        if not self.running:
            from twisted.internet import reactor
            self.threadpool.start()
            self.shutdownID = reactor.addSystemEventTrigger('during',
                                                            'shutdown',
                                                            self.finalClose)
            self.running = True