小编Mim*_*ord的帖子

类似的问题似乎都是基于使用自定义记录器,我很高兴只使用默认/无.我的pika python应用程序运行并接收消息,但几秒钟后崩溃No handlers could be found for logger "pika.adapters.blocking_connection",任何想法？

import pika

credentials = pika.PlainCredentials('xxx_apphb.com', 'xxx')
parameters = pika.ConnectionParameters('bunny.cloudamqp.com', 5672, 'xxx_apphb.com', credentials)

connection = pika.BlockingConnection(parameters)
channel = connection.channel()

channel.queue_declare('messages')

def message_received(channel, method, properties, body):
    print "[x] Received %r" % (body)

channel.basic_consume(message_received, queue='messages', no_ack=True)

channel.start_consuming()

通过添加修复:

import logging
logging.basicConfig()

我有2个DecimalUpDown控件,num_one和num_two,分别绑定到属性First和Second.当First更改时,它将联系服务器以计算Second的值,反之亦然.异步启动服务器调用释放UI但是,在快速触发(例如滚轮)时,最后一个请求并不总是最后一个请求,因此值可能会不同步.

使用Reactive我试图阻止调用只在用户停止更改一段时间后才触发服务器调用.问题是,当您在更新期间进行更改时,属性更改开始相互触发并根据节流阀的TimeSpan来回停留.

    public MainWindow()
    {
        InitializeComponent();

        DataContext = this;

        Observable.FromEventPattern<RoutedPropertyChangedEventHandler<object>, RoutedPropertyChangedEventArgs<object>>(h => num_one.ValueChanged += h, h => num_one.ValueChanged -= h)
            .Throttle(TimeSpan.FromMilliseconds(100), Scheduler.ThreadPool)
           .Subscribe(x =>
           {
               Thread.Sleep(300); // simulate work
               Second = (decimal)x.EventArgs.NewValue / 3.0m;
           });

        Observable.FromEventPattern<RoutedPropertyChangedEventHandler<object>, RoutedPropertyChangedEventArgs<object>>(h => num_two.ValueChanged += h, h => num_two.ValueChanged -= h)
            .Throttle(TimeSpan.FromMilliseconds(100), Scheduler.ThreadPool)
           .Subscribe(x =>
           {
               Thread.Sleep(300); // simulate work
               First = (decimal)x.EventArgs.NewValue * 3.0m;
           });
    }

    private decimal first;
    public decimal First
    {
        get { return first; }
        set
        {
            first = value;
            NotifyPropertyChanged("First"); …