runtime

The following code doesn't work in Python 3.x, but it used to work with old-style classes: class Extender: def extension(self): print("Some work...") class Base: pass Base.__bases__ += (Extender,) Base().extension() Question is simple: How can I add dynamically (at runtime) a super class to a class in Python 3.x? But I'm ready the answer will be hard! ) Mykola Kharechko As for me it is impossible. But you can create new class dynamically: class Extender(object): def extension(self): print("Some work...") class Base(object): pass Base = type('Base', (Base, Extender, object), {}) Base()

Just read news that Google had announced an early preview of the new web programming language Dart. The documentation on the dartlang.org states: You will be able to run Dart code in several ways: Translate Dart code to JavaScript that can run in any modern browser: Chrome, Safari 5+, and Firefox 4+ (more browser support coming shortly). Execute Dart code directly in a VM on the server side Use Dartboard to write, modify, and execute small Dart programs within any browser window And I'm curious is there already VM available to run Dart code? Can't find it anyway, maybe it is available through

I am trying to install java windows application on client machine.I want to check whether requried JRE is installed on the machine or not. I want to check it by java program not by cmd command SpringLearner if you are using windows or linux operating system then type in command prompt / terminal java -version If java is correctly installed then you will get something like this java version "1.7.0_25" Java(TM) SE Runtime Environment (build 1.7.0_25-b15) Java HotSpot(TM) Client VM (build 23.25-b01, mixed mode, sharing) Side note: After installation of Java on a windows operating system, the PATH

Is it possible to load a specific package during runtime? I want to have a kind of plugins where each one has the same functions than the others but with different behaviour, and depending on the configuration file, load one or other. You might consider executing the ‘plugin’ packages at runtime, by writing out a new program (say, to a temp directory) and executing via exec.Command , something along the lines of exec.Command("go", "run", files…).Run() You’ll see some similar code here . No, Go doesn't support dynamically loaded libraries. Your best bet is to start the plugin as its own

使用方法： private static ExecutorService cachedThreadPool = new ThreadPoolExecutor(4, Runtime.getRuntime().availableProcessors() * 2, 0, TimeUnit.MILLISECONDS, new SynchronousQueue<>(), r -> new Thread(r, "ThreadTest")); 1.SynchronousQueue SynchronousQueue没有容量，是无缓冲等待队列，是一个不存储元素的阻塞队列，会直接将任务交给消费者，必须等队列中的添加元素被消费后才能继续添加新的元素。 拥有公平（FIFO）和非公平(LIFO)策略，非公平侧罗会导致一些数据永远无法被消费的情况？ 使用SynchronousQueue阻塞队列一般要求maximumPoolSizes为无界，避免线程拒绝执行操作。 private static ExecutorService cachedThreadPool = new ThreadPoolExecutor(4, Runtime.getRuntime().availableProcessors() * 2, 0, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<>(

I'm looking for a way to run code by executing the following steps : Receiving a list of NuGet packages (a list of tuples ("package name", "package version", "path to main class"). Retrieving them in a local directory (cf code sample #1) Loading them in my program at run-time Running the main classes by introspection (cf code sample #2) By now I am struggling with the third step. I can't find out how to load my package at run-time. My main question are : How can I find out in which folders were stored the retrieved packages ? How can I load the content of those directories into my program ?