twisted

问题 Good morning, I get a connection error while executing one of my spiders: 2014-02-28 10:21:00+0400 [butik] DEBUG: Retrying <GET http://www.butik.ru/> (failed 1 times): An error occurred while connecting: [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionLost'>: Connection to the other side was lost in a non-clean fashion: Connection lost.]. Afterwards the spider shuts down. All other spiders with a smiliar structure are running smoothly, but this

问题 I wrote my very first Twisted 10.1.0 web Resource and I am seeking for feedback, because I feel this isn't exactly following the best practice and may contain newbies bugs. The resource responds to /?url=http://www.foo.baz/abc123 and relies on a service that returns a dict . If anything goes wrong (e.g., invalid or non-existing url , then a 400 is returned). Any comment? Anything to fix, to improve class ProcessedUrl(resource.Resource): isLeaf = True def __init__(self, service): resource

问题 I'm doing server/client application similar to Ubuntu Landscape (http://www.canonical.com/enterprise-services/ubuntu-advantage/landscape) for my school project. The client part of application will send different informations (disk usage, packages etc.) to server. I know how to get informations and hot I'll handle them on the server side. But I don't know how what is the best way to exchange informations. Would SOAP be ok or is there any better way for doing this? Messages can be large (for

问题 I have a program that fetches info from other pages and parses them using BeautifulSoup and Twisted's getPage. Later on in the program I print info that the deferred process creates. Currently my program tries to print it before the differed returns the info. How can I make it wait? def twisAmaz(contents): #This parses the page (amazon api xml file) stonesoup = BeautifulStoneSoup(contents) if stonesoup.find("mediumimage") == None: imageurl.append("/images/notfound.png") else: imageurl.append

问题 In twisted I am a perpetual event loop that is always lookig for a new query to run It polls a SQS queue and are are times where time between queres is long enough to time out and this is the error I get when a new query arrives... MySQLdb _mysql_exceptions.OperationalError: (2006, 'MySQL server has gone away') here is my connection self.pool = adbapi.ConnectionPool("MySQLdb", self.parms['host'], self.parms['username'], self.parms['password'], self.parms['database']) Here is the logic I use

问题 What is the difference between defer.execute() and threads.deferToThread() in twisted? Both take the same arguments - a function, and parameters to call it with - and return a deferred which will be fired with the result of calling the function. The threads version explicitly states that it will be run in a thread. However, if the defer version doesn't, then what would ever be the point of calling it? Code that runs in the reactor should never block, so any function it calls would have to not

问题 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

问题 I've managed to connect to usb modem and a client can connect via tcp to my reactor.listenTCP,the data received from modem will be send back to client. I'm want to take dataReceived from client and send this to modem..I'm struggling to get this to work.Any help will be highly appreciated! the code: from twisted.internet import win32eventreactor win32eventreactor.install() from twisted.internet import reactor from twisted.internet.serialport import SerialPort from twisted.internet.protocol

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 4 years ago . i want to build a site similar to www.omegle.com. can any one suggest me some ideas. I think its built usning twisted , orbiter comet server. 回答1: Twisted is a good choice. I used it a few years ago to build a server for a browser-based online game I wrote - it kept track of clients, served them