twisted.web

Flask deployed with twistd: Failed to load application: 'NoneType' object has no attribute 'startswith'

亡梦爱人 提交于 2020-01-07 00:52:53
问题 I am trying to deploy my Twisted application using .tac files and twistd I tried to deploy it with the command line: twistd -y service.tac I have the error: ... application = getApplication(self.config, passphrase) --- <exception caught here> --- File "/usr/local/lib/python2.7/dist-packages/twisted/application/app.py", line 450, in getApplication application = service.loadApplication(filename, style, passphrase) File "/usr/local/lib/python2.7/dist-packages/twisted/application/service.py",

Python-Twisted: Reverse Proxy to HTTPS API: Could not connect

三世轮回 提交于 2019-12-31 03:00:50
问题 I am trying to build a reverse-proxy to talk to certain APIs(like Twitter, Github, Instagram) that I can then call with my reverse-proxy to any (client) applications I want (think of it like an API-manager). Also, I am using an LXC-container to do this. For example, here is the simplest of code that I hacked from the examples on the Twisted Docs: from twisted.internet import reactor from twisted.web import proxy, server from twisted.python.log import startLogging from sys import stdout

Am I parsing this HTTP POST request properly?

狂风中的少年 提交于 2019-12-31 02:01:06
问题 Let me start off by saying, I'm using the twisted.web framework. Twisted.web 's file uploading didn't work like I wanted it to (it only included the file data, and not any other information), cgi.parse_multipart doesn't work like I want it to (same thing, twisted.web uses this function), cgi.FieldStorage didn't work ('cause I'm getting the POST data through twisted, not a CGI interface -- so far as I can tell, FieldStorage tries to get the request via stdin), and twisted.web2 didn't work for

Does twisted, cyclone or tornado do SMP multicore out of the box

半腔热情 提交于 2019-12-24 12:04:09
问题 I'd like to use any one of the 3 mentioned non-blocking servers on an AWS Linux server with 8 cores. It's not clear in any of the documentation whether SMP is implemented under the covers in the respective helloworld or any other examples. For example, this cyclone helloworld mentions nothing about cores or SMP or threads per core. import cyclone.web class MainHandler(cyclone.web.RequestHandler): def get(self): self.write("Hello, world") class Application(cyclone.web.Application): def __init_

Python Twisted Client Connection Lost

99封情书 提交于 2019-12-23 15:17:13
问题 I have this twisted client, which connects with a twisted server having an index. I ran this client from command-line. It worked fine. Now I modified it to run in loop (see main() ) so that I can keep querying. But the client runs only once. Next time it simply says connection lost \n Connection lost - goodbye! . What am i doing wrong? In the loop I am reconnecting to the server, it that wrong? from twisted.internet import reactor from twisted.internet import protocol from settings import AS

How can I write tests for code using twisted.web.client.Agent and its subclasses?

梦想的初衷 提交于 2019-12-21 05:31:25
问题 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

TwistedWeb on multicore/multiprocessor

天大地大妈咪最大 提交于 2019-12-17 21:54:14
问题 What techniques are people using to utilize multiple processors/cores when running a TwistedWeb server? Is there a recommended way of doing it? My twisted.web based web service is running on Amazon EC2 instances, which often have multiple CPU cores (8, 16), and the type of work that the service is doing benefits from extra processing power, so i would very much like to use that. I understand that it is possible to use haproxy, squid or a web server, configured as a reverse proxy, in front of

How to assign a returned value from the defer method in python/twisted

隐身守侯 提交于 2019-12-12 05:09:56
问题 I have a class, which is annotated as @defer.inlineCallbacks (I want to return the machine list from this) @defer.inlineCallbacks def getMachines(self): serverip = 'xx' basedn = 'xx' binddn = 'xx' bindpw = 'xx' query = '(&(cn=xx*)(objectClass=computer))' c = ldapconnector.LDAPClientCreator(reactor, ldapclient.LDAPClient) overrides = {basedn: (serverip, 389)} client = yield c.connect(basedn, overrides=overrides) yield client.bind(binddn, bindpw) o = ldapsyntax.LDAPEntry(client, basedn) results

Twisted url action routing

只谈情不闲聊 提交于 2019-12-12 03:37:36
问题 If I have for example this simple TCP server: from twisted.internet import reactor from twisted.web.resource import Resource from twisted.web.server import Site from resources import SomeResource logging.info("Starting server...") root = Resource() root.putChild("test", SomeResource()) reactor.listenTCP(8080, Site(root)) reactor.run() With SomeResource which has the render_GET and render_POST methods for example. Then I know I can just send a POST/GET to hostname:8080/test But now I want to

Twisted web - Keep request data after responding to client

此生再无相见时 提交于 2019-12-11 04:16:14
问题 I have a front-end web server written in Twisted Web, that interfaces with another web server. Clients upload files to my front-end server, which then sends the files along to the back-end server. I'd like to receive the uploaded file, and then send an immediate response to the client before sending the file on to the back-end server. That way the client doesn't have to wait for both uploads to occur before getting a response. I'm trying to do this by starting the upload to the back-end