tornado

问题 Are there any Python demo projects available I can learn from. I am basically looking into learning the basics like linking and creating a navigation bar. I am currently trying to get the blog demo in the demo folder of Tornado to run, I am experiencing problems with the SQL file and do not know yet how to open it. Besides that I would like to ask if there are more Python Demo Web Projects, one can learn from, perhaps somebody wold like to share a basic template example? 回答1: Besides Tornado

问题 I have nginx server proxying requests to a few tornado instances. Each tornado instance is based on the long-polling chat demo that comes with Tornado. The script has an array that stores the callbacks, which are then used to dispatch messages back to the client. The problem I have is that when there are multiple tornado instances, nginx uses a round-robin strategy. Since the callbacks are stored per instance (and not maintained centrally), depending on when the request is made, it goes to

问题 I am attempting to just run the Hello World code from Tornado docs import tornado.ioloop import tornado.web class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello, world") def make_app(): return tornado.web.Application([ (r"/", MainHandler), ]) if __name__ == "__main__": app = make_app() app.listen(8888) tornado.ioloop.IOLoop.current().start() Except I am getting an error: AttributeError: module 'test' has no attribute '__path__' I am just using IDLE to run test.py I

问题 I am attempting to just run the Hello World code from Tornado docs import tornado.ioloop import tornado.web class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello, world") def make_app(): return tornado.web.Application([ (r"/", MainHandler), ]) if __name__ == "__main__": app = make_app() app.listen(8888) tornado.ioloop.IOLoop.current().start() Except I am getting an error: AttributeError: module 'test' has no attribute '__path__' I am just using IDLE to run test.py I

问题 I have a REST (or almost REST) web api, I want the API users to be able to use all the api, even if for some reason the can only make GET calls, so the plan is to accept a url parameter (query string) like request_method that can be GET (default) or POST, PUT, DELETE and I want to route them. My question is other than the standard request handler overrides and checking in each httpRequestHandler in the get(self) method if this is meant to be a POST, PUT, DELETE and calling the appropriate

问题 I have a async tornado server that calls an async function. However, that function just does some background processing, and I don't want to wait for it to finish. How can I do this? Here is an example of what I have: @gen.coroutine def get(self): yield self.process('data') # I don't want to wait here self.write('page') @gen.coroutine def process(self, arg): d = yield gen.Task(self.otherFunc, arg) raise gen.Return(None) 回答1: Simply remove the yield before self.process('data'). It will still

问题 I've seen some URLs regexps ending with a $ in a Tornado app that was handed to my team... Maybe I'm not the most web literate guy and this is obvious for others, but I don't see the difference it makes to explicitly indicate the end of line when matching the whole string (not searching inside). Is there something that I'm missing or it is just redundant? edit to make clearer what I mean: handlers = [ tornado.web.URLSpec(r'/About/$', ShowSettingsHandler), ... ] that should be exactly the same

问题 I'm using Tornado to send requests in rapid, periodic succession (every 0.1s or even 0.01s) to a server. For this, I'm using AsyncHttpClient.fetch with a callback to handle the response. Here's a very simple code to show what I mean: from functools import partial from tornado import gen, locks, httpclient from datetime import timedelta, datetime # usually many of these running on the same thread, maybe requesting the same server @gen.coroutine def send_request(url, interval): wakeup_condition

问题 how can i convert a string ip address to a decimal number. e.g I have a data bytes= b'363,3,1778952384,7076' , here 1778952384 is my ip address and 7076 is my port. How can I convert my IP address to decimal number. below is my code, please help me to solve these problem /app.py import socket from tornado.tcpclient import TCPClient from tornado import gen @gen.coroutine def f(self, message): global stream client = TCPClient() stream = yield client.connect('192.168.8.108', 2620, max_buffer

问题 I use this config for preventing DOS like floodings on my server: limit_req_zone $binary_remote_addr zone=one:10m rate=10r/s; limit_req_zone $binary_remote_addr zone=sms:10m rate=1r/m; upstream main_server{ server web_instance_1:8000; } server { limit_req zone=one burst=5; listen 80; server_name something.com; return 301 https://$host$request_uri; } server { listen 443 ssl; server_name something.com; ssl on; ssl_certificate /etc/nginx/ssl/chained.crt; ssl_certificate_key /etc/nginx/ssl/nginx