twisted

I read the official tutorial on test-driven development, but it hasn't been very helpful in my case. I've written a small library that makes extensive use of twisted.web.client.Agent and its subclasses ( BrowserLikeRedirectAgent , for instance), but I've been struggling in adapting the tutorial's code to my own test cases. I had a look at twisted.web.test.test_web , but I don't understand how to make all the pieces fit together. For instance, I still have no idea how to get a Protocol object from an Agent , as per the official tutorial Can anybody show me how to write a simple test for some

I have been working on an Arduino/Raspberry Pi project where I have found myself learning not just Python but Twisted Python as well; so I apologize in advance for my newbness. I am trying to keep it simple for now and just trying to send a char at any one time between the two devices. So far I am able to send from the Raspberry Pi to the Arduino and effectively turn its LED off/on just as expected. However I cannot seem to generate Twisted code which will detect anything coming from the Arduino to the RPi on the serial port. I verified that the Arduino is sending chars every 2 seconds with a

I'm new to web services and as an introduction I'm playing around with the Twitter API using the Twisted framework in python. I've read up on the different formats they offer, but it's still not clear to me which one I should use in my fairly simple project. Specifically the practical difference between using JSON or XML is something I'd like guidance on. All I'm doing is requesting the public timeline and caching it locally. Thanks. For me it boils down to convenience. Using XML, I have to parse the response in to a DOM (or more usually an ElementTree). Using JSON, one call to simplejson

I'm new to using Cloud9 IDE (c9) and so far it looks great, except a few minor things. I see from the docs that to start up a simple node.js http server, you have to pass in process.env.PORT in place of the regular port such as "8080". Node Hello World example : var http = require('http'); http.createServer(function (req, res) { res.writeHead(200, {'Content-Type': 'text/plain'}); res.end('Hello World\n'); }).listen(process.env.PORT, process.env.IP); What I want to know is, on c9, can you only start services on ports using javascript / node.js? Or do other languages work just as well, perhaps

I'm trying to figure out how can i make my code more asynchronous using twisted. A function returns a deferred object then i add a list of callbacks the first callback will be called after the deferred function provides some result through deferred_obj.callback then, in the chain of callbacks, the first callback will do something with the data and call the second callback and etc. however chained callbacks will not be considered asynchronous because they're chained and the event loop will keep firing each one of them concurrently until there is no more, right? However, if I have a deferred

Here's some code that illustrates my problem: def blocking1(): while True: yield 'first blocking function example' def blocking2(): while True: yield 'second blocking function example' for i in blocking1(): print 'this will be shown' for i in blocking2(): print 'this will not be shown' I have two functions which contain while True loops. These will yield data which I will then log somewhere (most likely, to an sqlite database). I've been playing around with threading and have gotten it working. However, I don't really like it... What I would like to do is make my blocking functions