MongoDB的異步Python驅動：Motor

Motor是一個適用于PythonTornado 應用，功能完整，非阻塞的 MongoDB 驅動器。Motor 封裝自 PyMongo。

from tornado import gen

class NewMessageHandler(tornado.web.RequestHandler):
    @tornado.web.asynchronous
    @gen.coroutine
    def post(self):
        """Insert a message."""
        msg = self.get_argument('msg')
        db = self.settings['db']

    # insert() returns a Future. Yield the Future to get the result.
    result = yield db.messages.insert({'msg': msg})

    # Success
    self.redirect('/')



class MessagesHandler(tornado.web.RequestHandler):
    @tornado.web.asynchronous
    @gen.coroutine
    def get(self):
        """Display all messages."""
        self.write('<a href="/compose">Compose a message</a><br>')
        self.write('<ul>')
        db = self.settings['db']
        cursor = db.messages.find().sort([('_id', -1)])
        while (yield cursor.fetch_next):
            message = cursor.next_object()
            self.write('<li>%s</li>' % message['msg'])

    # Iteration complete
    self.write('</ul>')
    self.finish()</pre> <p><strong>項目主頁：</strong><a href="http://www.baiduhome.net/lib/view/home/1397782973046" rel="nofollow" target="_blank">http://www.baiduhome.net/lib/view/home/1397782973046</a></p>