twisted

scrapy框架(内部去下载内容就是使用twisted异步非租塞模块) 　　 1.依赖twisted 　　　　内部基于事件循环的机制实现爬虫的并发 　　　　非租塞：不等待 发起连接请求，不等待连接再去连接下一个，发送一个之后马上发送下一个 　　　　异步：回调 体现就是通知 只要发送成功回来就自动通知 　　　　事件循环：循环socket任务，检测socket状态 是否连接成功 是否返回结果 　　　　白话：单线程同时可以向多个目标发起http请求 　　　　官方：基于事件循环的异步非租塞模块 1 from twisted.web.client import getPage, defer 2 from twisted.internet import reactor 3 4 5 # 第一部分 代理开始接收任务 6 def callback(contents): 7 print(contents) 8 9 deferred_list = [] # 任务列表 10 url_list = ['http://www.bing.com', 'https://segmentfault.com/', 'https://stackoverflow.com/'] 11 for url in url_list: 12 deferred = getPage(bytes(url, encoding='utf8'))

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 import Protocol, Factory from twisted.python import log import sys log.startLogging(sys.stdout) client

So, I've got an application that uses Twisted + Stomper as a STOMP client which farms out work to a multiprocessing.Pool of workers. This appears to work ok when I just use a python script to fire this up, which (simplified) looks something like this: # stompclient.py logging.config.fileConfig(config_path) logger = logging.getLogger(__name__) # Add observer to make Twisted log via python twisted.python.log.PythonLoggingObserver().start() # initialize the process pool. (child processes get forked off immediately) pool = multiprocessing.Pool(processes=processes) StompClientFactory.username =

I slightly modified a server-client Twisted program on this site, which provided a program that could act as a server and a client (http://stackoverflow.com/questions/3275004/how-to-write-a-twisted-server-that-is-also-a-client). I am able to connect the server-client to an external client on one side and an external server on the other. I want to transfer data from the external client to the external server via the server-client program. The problem I am having is getting the line received in the ServerProtocol class (in the server-client program) into the ClientProtocol class (in the server

I tried to package a Twisted program with py2exe, but once I run the exe file I built, I got a "No module named resource" error. And I found the py2exe said: The following modules appear to be missing ['FCNTL', 'OpenSSL', 'email.Generator', 'email.Iterators', 'email.Utils', 'pkg_resources', 'pywintypes', 'resource', 'win32api', 'win32con', 'win32event', 'win32file', 'win32pipe', 'win32process', 'win32security'] So how do I solve this problem? Thanks. I've seen this before... py2exe, for some reason, is not detecting that these modules are needed inside the ZIP archive and is leaving them out.

I am setting up a virtualenv on a new server, and when I used pip on our requirements file, it kept dying on Twisted. I commented the Twisted line out, and everything else installed fine. At the command line, this is the output I see when I try to install Twisted (the same error I see when I run the entire requirements file once it gets to the Twisted line): (foo)company@server:~$ pip install twisted Collecting twisted Could not find a version that satisfies the requirement twisted (from versions: ) No matching distribution found for twisted I can install Twisted fine from my dev machine and