GPS data storage system Question: I have a python script written using twisted module which is running on an ubuntu server as a service. We have many gps devices which sends data every 10 sec. My job is to parse that data and store it in database. Everything is working fine, but total number of …
How can I run a simple twisted client on top of asyncio? Question: I have the following client code that I borrowed from twisted’s docs: https://docs.twistedmatrix.com/en/twisted-20.3.0/web/howto/client.html#the-agent And I am trying to run it with asyncio since I am building an asyncio project that requires compatibility with twisted. Here is the code: import asyncio from twisted.internet …
Twisted application ignoring a certain UNIX signal – is it possible? Question: Let’s say we have the following situation: kill <pid> sends SIGTERM kill -<SIGNAL> <pid> sends <SIGNAL> Sometimes, during development, I need to kill my application and restart it, at the moment – using the first type of command. But, if I have a …
Twisted Tkinter Manual Data Input Not Working Question: I’m working on an application for use in a reception/office environment that allows for the sending of notices to specific offices/computers or in my case for testing at the moment globally to all connected clients. The issue I have faced is that the server claims to send …
Process the body of 403 Forbidden with twisted.web.client Question: I have the general code: client.getPage(url, headers=headers).addCallback(…).addErrback(errorHandler) with the following error handler: def errorHandler(self, error): log.critical(‘Error: ‘, extra=dict(error=error)) All that I can get from such processing is the following: Error: {‘error’: <twisted.python.failure.Failure twisted.web.error.Error: 403 Forbidden>} Problem is that I need to process the body of the …
twisted-iocpsupport error when using pip on ubuntu / debian io.h missing Question: Receiving error: Building wheel for twisted-iocpsupport (PEP 517): started ERROR: Command errored out with exit status 1: command: /usr/bin/python3 /tmp/tmpv8s6qz76 build_wheel /tmp/tmp9l8hgcva cwd: /tmp/pip-install-qsr4j4x_/twisted-iocpsupport Complete output (13 lines): running bdist_wheel running build running build_ext building ‘twisted_iocpsupport.iocpsupport’ extension creating build creating build/temp.linux-x86_64-3.8 creating build/temp.linux-x86_64-3.8/twisted_iocpsupport …
Django + Celery + Scrapy twisted reactor(ReactorNotRestartable) and database(SSL error) errors Question: I have a Django 2.0, Celery 4 and Scrapy 1.5 setup where I have a Spider inside a django custom command and I need to call this command at regular intervals, I use Celery to call these commands and they involve scraping a …
Errno 24: Too many open files. But I am not opening files? Question: I am using treq (https://github.com/twisted/treq) to query some other api from my web service. Today when I was doing stress testing of my own services, It shows an error twisted.internet.error.DNSLookupError: DNS lookup failed: address ‘api.abc.com’ not found: [Errno 24] Too many open …
What's the difference betwee "Actor model" and "Reactor pattern" in Python? Question: https://en.wikipedia.org/wiki/Actor_model, the project is called “pulsar“ https://en.wikipedia.org/wiki/Reactor_pattern, the projects are Twisted and Tornado What’s the difference in the theory and practice? Asked By: est || Source Answers: There’s no difference. “Actor model” is somewhat more ambiguous, but both terms are sufficiently general that …
twistd using usage.options in a *.tac file Question: I’m writing a server with Twisted that is based on a *.tac file that starts the services and the application. I’d like to get one additional command line argument to specify a yaml configuration file. I’ve tried using usage.Options by building a class that inherits from it, …
