twisted

I am trying to simulate a network of applications that run using twisted. As part of my simulation I would like to synchronize certain events and be able to feed each process large amounts of data. I decided to use multiprocessing Events and Queues. However, my processes are getting hung. I wrote the example code below to illustrate the problem. Specifically, (about 95% of the time on my sandy bridge machine), the 'run_in_thread' function finishes, however the 'print_done' callback is not called until after I press Ctrl-C. Additionally, I can change several things in the example code to make

twisted task.cpperator 1. twisted task.cpperator 1.1. 简介-cooperator 官方文档： https://twistedmatrix.com/documents/current/api/twisted.internet.task.Cooperator.html#coiterate Cooperative task scheduler. A cooperative task is an iterator where each iteration represents an atomic unit of work. When the iterator yields, it allows the Cooperator to decide which of its tasks to execute next. If the iterator yields a defer.Deferred then work will pause until the defer.Deferred fires and completes its callback chain. 一个协作任务是迭代器，每个迭代元素是一个原子性的操作。当迭代器产出/抛出时，它允许Cooperator决定是否进行下一步。如果迭代器抛出一个Deferred

I want to make a little update script for a software that runs on a Raspberry Pi and works like a local server. That should connect to a master server in the web to get software updates and also to verify the license of the software. For that I set up two python scripts. I want these to connect via a TLS socket. Then the client checks the server certificate and the server checks if it's one of the authorized clients. I found a solution for this using twisted on this page . Now there is a problem left. I want to know which client (depending on the certificate) is establishing the connection. Is

After spending two entire days on this I'm still finding it impossible to understand all the choices and configurations for Comet in Python. I've read all the answers here as well as every blog post I could find. It feels like I'm about to hemorrhage at this point, so my utmost apologies for anything wrong with this question. I'm entirely new to all of this, all I've done before were simple non-real-time sites with a PHP/Django backend on Apache. My goal is to create a real-time chat application; hopefully tied to Django for users, auth, templates, etc. Every time I read about a tool it says I

Why do we need RabbitMQ when we have a more powerful network framework in Python called Twisted. I am trying to understand the reason why someone would want to use RabbitMQ. Could you please provide a scenario or an example using RabbitMQ? Also, where can I find a tutorial on how to use RabbitMQ? Let me tell you a few reasons that makes using MOM (Message Oriented Middleware) probably the best choice. Decoupling: It can decouple/separate the core components of the application. There is no need to bring all the benefits of the decoupled architecture here. I just want to point it out that this

So I'm writing yet another Twisted based daemon. It'll have an xmlrpc interface as usual so I can easily communicate with it and have other processes interchange data with it as needed. This daemon needs to access a database. We've been using SQL Alchemy in place of hard coding SQL strings for our latest projects - those mostly done for web apps in Pylons. We'd like to do the same for this app and re-use library code that makes use of SQL Alchemy. So what to do? Well of course since that library was written for use in a Pylons app it's all the straight-forward blocking style code that everyone

I'm having trouble developing a reverse proxy in Twisted. It works, but it seems overly complex and convoluted. So much of it feels like voodoo. Are there any simple, solid examples of asynchronous program structure on the web or in books? A sort of best practices guide? When I complete my program I'd like to be able to still see the structure in some way, not be looking at a bowl of spaghetti. Twisted contains a large number of examples . One in particular, the "evolution of Finger" tutorial , contains a thorough explanation of how an asynchronous program grows from a very small kernel up to

From the wikipedia Reactor Pattern article: The reactor design pattern is an event handling pattern for handling service requests delivered concurrently to a service handler by one or more inputs. It named a few examples, e.g. nodejs , twisted , eventmachine But what I understand that above is popular event driven framework, so make them also a reactor pattern framework? How to differentiate between these two? Or they are the same? The reactor pattern is more specific than "event driven programming". It is a specific implementation technique used when doing event driven programming. However,