(self)
Starts a graceful stop of the crawler and returns a deferred that is
        fired when the crawler is stopped.
Starts a graceful stop of the crawler and returns a deferred that is
        fired when the crawler is stopped.
Starts a graceful stop of the crawler and returns a deferred that is fired when the crawler is stopped .
def stop(self):
        """Starts a graceful stop of the crawler and returns a deferred that is
        fired when the crawler is stopped."""
        if self.crawling:
            self.crawling = False
            yield defer.maybeDeferred(self.engine.stop)
def stop ( self ) : if self . crawling : self . crawling = False yield defer . maybeDeferred ( self . engine . stop )