twisted | Event-driven networking engine written in Python | Reactive Programming library

 by   twisted Python Version: 24.3.0 License: Non-SPDX

kandi X-RAY | twisted Summary

kandi X-RAY | twisted Summary

twisted is a Python library typically used in Programming Style, Reactive Programming applications. twisted has no bugs, it has no vulnerabilities and it has high support. However twisted build file is not available and it has a Non-SPDX License. You can install using 'pip install twisted' or download it from GitHub, PyPI.

Event-driven networking engine written in Python.
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            kandi-support Support

              twisted has a highly active ecosystem.
              It has 5085 star(s) with 1121 fork(s). There are 173 watchers for this library.
              There were 3 major release(s) in the last 6 months.
              There are 2639 open issues and 7362 have been closed. On average issues are closed in 283 days. There are 113 open pull requests and 0 closed requests.
              OutlinedDot
              It has a negative sentiment in the developer community.
              The latest version of twisted is 24.3.0

            kandi-Quality Quality

              twisted has 0 bugs and 0 code smells.

            kandi-Security Security

              twisted has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              twisted code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              twisted has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              twisted releases are available to install and integrate.
              Deployable package is available in PyPI.
              twisted has no build file. You will be need to create the build yourself to build the component from source.
              twisted saves you 213464 person hours of effort in developing the same functionality from scratch.
              It has 212785 lines of code, 25958 functions and 1149 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed twisted and discovered the below as its top functions. This is intended to give you an instant insight into twisted implemented functionality, and help decide if they suit your requirements.
            • Write the XML file to the stream .
            • Implements the callbacks .
            • Run the callbacks on the callbacks .
            • Flattens a single element .
            • Generate a command based on the query parameters .
            • Rebuild a module .
            • Deserialize a private key from a private key .
            • Start a new element with the given namespace and attributes .
            • Attempts to find a known authority .
            • Recursively traverses all elements of a tree rooted at a given path .
            Get all kandi verified functions for this library.

            twisted Key Features

            No Key Features are available at this moment for twisted.

            twisted Examples and Code Snippets

            pyTelegramBotAPI - webhook twisted echo bot
            Pythondot img1Lines of Code : 41dot img1License : Non-SPDX (GNU General Public License v2.0)
            copy iconCopy
            #!/usr/bin/env python3
            # -*- coding: utf-8 -*-
            
            # This is an example echo bot using webhook with Twisted network framework.
            # Updates are received with Twisted web server and processed in reactor thread pool.
            # Relevant docs:
            # https://twistedmatrix.  
            Scrapy - ReactorAlreadyInstalledError when using TwistedScheduler
            Pythondot img2Lines of Code : 49dot img2License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            from multiprocessing import Process
            
            from scrapy.crawler import CrawlerRunner
            from scrapy.utils.project import get_project_settings
            from scrapy.utils.log import configure_logging
            from apscheduler.schedulers.blocking import BlockingSchedule
            Scrapy - ReactorAlreadyInstalledError when using TwistedScheduler
            Pythondot img3Lines of Code : 26dot img3License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            
            from scrapy.crawler import CrawlerRunner
            from scrapy.utils.project import get_project_settings
            from scrapy.utils.log import configure_logging
            from twisted.internet import reactor
            from apscheduler.schedulers.twisted import TwistedScheduler
            How to send and receive data on the same line in twisted python?
            Pythondot img4Lines of Code : 5dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
             def reply(self, key):
                      
                 self.sendLine(msg) # if you want to send data on separate lines
                 self.transport.write(b'ftp> ') # if you want to send data without'/n' delimiter
            
            Compare rows of pandas dataframe
            Pythondot img5Lines of Code : 23dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
                wer_0 = []
                for idx, df_select in df_mturk.groupby(level=['FileName']):
                    for i in range(len(df_select)):
                        if i == 0:
                            ground_truth = df_select.iloc[i][1]
                            wer_0.append(wer(ground_truth
            Using Leafproxies proxy for scraping, ValueError: Port could not be cast to integer value
            Pythondot img6Lines of Code : 11dot img6License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            ROTATING_PROXY_LIST= [
                "https://ksre9jva95etajxxaoll9k+JI38HJg5:lnztmtf9nh@us-retail-fast.resdleafproxies.com:5000",
                "https://ksre9jva95etajxxaoll9k+zHtjyZRG:lnztmtf9nh@us-retail-fast.resdleafproxies.com:5001",
            ]
            DOWNLOADER_MIDDLEW
            install python-dev on kali for python2.7
            Pythondot img7Lines of Code : 2dot img7License : Strong Copyleft (CC BY-SA 4.0)
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            sudo apt --fix-broken install
            
            How to bind Heroku port to scrapyd
            Pythondot img8Lines of Code : 9dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            # init.py
            import os
            import io
            
            PORT = os.environ['PORT']
            with io.open("scrapyd.conf", 'r+', encoding='utf-8') as f:
                f.read()
                f.write(u'\nhttp_port = %s\n' % PORT)
            
            How to run Scrapy in a while loop
            Pythondot img9Lines of Code : 12dot img9License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            def callback_f():
                # stuff #
                calling_f()
            
            def calling_f():
                answer = input("Continue? (y/n)")
                if not answer == 'n':
                    callback_f()
                    
            callback_f()
            
            
            scrapy image pipeline object has no attribute 'spiderinfo' error
            Pythondot img10Lines of Code : 4dot img10License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
                def open_spider(self, spider):
                    self.spiderinfo = self.SpiderInfo(spider)
                    print('start')
            

            Community Discussions

            QUESTION

            How to run two python event loops and share the same memory?
            Asked 2022-Feb-26 at 20:49

            I am using twisted and PySide2 to create an app that can send information through network. However, twisted's reactor and PySide2's QApplication both need an event loop that runs forever.

            What I need is when twisted receives a new message, I want it to update the message in the PySide2 Window. So that means twisted and PySide2 need to share the same memory. Here's some sample code:

            ...

            ANSWER

            Answered 2022-Feb-26 at 20:49

            You can run the Twisted and Qt5 event loops side-by-side using https://pypi.org/project/qt5reactor/.

            Source https://stackoverflow.com/questions/71273892

            QUESTION

            How to map only specific services to a specific listener port in ALB (k8s ingress)
            Asked 2022-Feb-17 at 10:15

            For example, guestbook-ui service and bbs-ui service are installed in k8s.

            And I want to map guestbook-ui only to the 8080 listener port and bbs-ui service to the 8081 listener port to the pre-generated k8s ALB ingress.

            However, if you write and store the following in spec, all guestbook-ui and bbs-ui services are deployed to all ports of 8080, 8081, and routing is twisted.

            ...

            ANSWER

            Answered 2022-Feb-17 at 10:15

            There is a feature to automatically merge multiple ingress rules for all ingresses in the same ingress group. The AWS ALB ingress controller supports them with a single ALB.

            Source https://stackoverflow.com/questions/71153695

            QUESTION

            How can I send Dynamic website content to scrapy with the html content generated by selenium browser?
            Asked 2022-Jan-20 at 15:35

            I am working on certain stock-related projects where I have had a task to scrape all data on a daily basis for the last 5 years. i.e from 2016 to date. I particularly thought of using selenium because I can use crawler and bot to scrape the data based on the date. So I used the use of button click with selenium and now I want the same data that is displayed by the selenium browser to be fed by scrappy. This is the website I am working on right now. I have written the following code inside scrappy spider.

            ...

            ANSWER

            Answered 2022-Jan-14 at 09:30

            The 2 solutions are not very different. Solution #2 fits better to your question, but choose whatever you prefer.

            Solution 1 - create a response with the html's body from the driver and scraping it right away (you can also pass it as an argument to a function):

            Source https://stackoverflow.com/questions/70651053

            QUESTION

            My HTML CSS website is displaying fine on my home computer but terribly on other screen resolutions
            Asked 2022-Jan-05 at 17:53

            as the title states,

            I am having trouble displaying my webpage properly on other screen resolutions.

            I am not certain why it looks so bad on other screen resolutions and not scaling to the device itself.

            I don't know exactly where to start, I would think that it has something to do with the way that I positioned my div containers but I am not too sure...

            and would like a more experienced person to answer my question before I started messing with the code.

            below is my HTML, CSS code:

            ...

            ANSWER

            Answered 2022-Jan-04 at 19:50

            I advise you to follow many good techniques when developing a responsive webpage, here I explain to you:

            • Replacing in your CSS absolute units such as px for percentages or em. It is always much better to work with relative measurements rather than absolute ones. From my experience, I always try to work with em, here is a conversion from px to em.
            • Using responsive layouts like flex or grid.
            • Adding metadata related to the viewport in the HTML head tag. I can see you haven't written it. As we can read in W3Schools viewport is the user's visible area of a web page. It varies with the device so it will be smaller on a mobile phone than on a computer screen. You should include the following element in all your web pages:

            In conclusion, try to avoid absolute positioning because it is not the best option. Try to follow this advice and I am sure your webpage will turn so much better. :D.

            Source https://stackoverflow.com/questions/70582850

            QUESTION

            Issue running Scrapy spider from script. Error: DEBUG: Using reactor: twisted.internet.selectreactor.SelectReactor
            Asked 2021-Dec-26 at 13:45

            Here is the code for the spider. I am trying to scrape these links using a Scrapy spider and get the output as a csv. I tested the CSS selector separately with beautiful soup and scraped the desired links, but cannot get this spider to run. I also tried to account for DEBUG message in the settings, but no luck so far. Please help

            ...

            ANSWER

            Answered 2021-Dec-26 at 13:45

            Just a guess - you may be facing a dynamic loading webpage that scrapy cannot directly scrape without the help of selenium.

            I've set up a few loggers with the help of adding headers and I don't get anything from the start_requests. Which is why I made the assumption as before.

            On a additional note, I tried this again with splash and it works.

            Here's the code for it:

            Source https://stackoverflow.com/questions/70475893

            QUESTION

            How can I pass either type or value to _Generic()
            Asked 2021-Dec-03 at 19:56

            The sizeof builtin can take either a type or an expression, and will return the appropriate value.

            I'd like to build a macro that uses _Generic() expressions to do something similar. In particular, I'd like to be able to pass either a type name or a value as the parameter, just like sizeof.

            As a trivial example, I can do something like this:

            ...

            ANSWER

            Answered 2021-Dec-03 at 19:56

            Your compound literal idea will work if you combine it with typeof. However, please note that typeof is a a GCC C language extension, so it might not work in every C compiler.

            Source https://stackoverflow.com/questions/70208746

            QUESTION

            Removing twists from procedurally generated pipe
            Asked 2021-Nov-26 at 17:23

            I have an issue when in try generating mesh around a spline.

            Everything is good but at random point on the spline the mesh is "twisted". Some of triangle are shifted (cf picture)

            https://i.ibb.co/WsFJjdm/Low-Poly-Spline-Bug.png

            More detailed mesh

            https://i.ibb.co/vBDD00V/Detailed-Spline-Bug.png

            And the code who create the mesh. I do not start filling the array at index 0 because i generate the cap of the "tube" before (i can share the code if needed)

            ...

            ANSWER

            Answered 2021-Nov-24 at 22:41

            The problem is that only knowing the current position and direction of the pipe isn't enough.

            To illustrate, start with two identical pipes lined up going forward, with the top marked in red and the bottom marked in cyan with paint. Bend pipe 1 upwards, then to the right, then back down, then to the right. Bend pipe 2 downwards, then to the right, then back up, then to the right. Both pipes will end up at the same point and direction, but the red and blue sides at the end are in different positions:

            (also applies to round pipes, of course)

            If you don't account for this ambiguity and always treat the "top" as red, you would have to have points in the pipe where the red paint "twists" around your pipe. The same principle is what is happening to the edges & faces of your mesh.

            To account for this, you can use the power of quaternions to calculate where the "first vertex" on the current ring corresponds to where the "first vertex" should belong on the previous ring.

            The position of this "first vertex" we will call the "index direction". We can think of this direction as the direction of our "red paint". In reality it will be the first vertex for the ring at that location in the spline. So, the same thing your perpendicularVect did!

            So, you can begin the pipe by finding any valid index direction. For the purposes of getting rid of these twists, it doesn't matter how this is found. Cross product with a constant parameter works great, just be sure to handle colinearity.

            Then, at each following step, find the minimal rotation which rotates the previous direction of the pipe to the new direction. Quaternion.FromToRotation does exactly this. Then, apply that rotation to the index direction to find the new index direction.

            Regardless of the step you are on, once you have your index direction, you can proceed as you were as if it was your perpendicularVect. Rotate it around the pipe's axis to find the other points in the ring, and connect adjacent points to each other. Then, continue to the next step.

            Altogether:

            Source https://stackoverflow.com/questions/70099693

            QUESTION

            How can I use a Constraint Family that's in scope to prove instances within the body of an expression?
            Asked 2021-Nov-23 at 23:48

            This is a follow up to my previous question. I recieved some good answers there, but, because of the way I simplified my actual problem, I think I misled the answerers, and I hope to remedy that here.

            TL;DR I have a typeclass Category from constrained-categories which constrains the domain/codomain of it's Categorys using a TypeFamily ("constraint family") called Object. I would like to make a Free Category, but am struggling to get proofs that expressions satisfy the Object constraint.

            Consider my Free data type, and its constrained-categories.Category instance:

            ...

            ANSWER

            Answered 2021-Nov-23 at 23:48
            {-# LANGUAGE GADTs, RankNTypes, TypeApplications, AllowAmbiguousTypes #-}
            

            Source https://stackoverflow.com/questions/70088443

            QUESTION

            How to test async function using pytest?
            Asked 2021-Nov-18 at 08:02
            @pytest.fixture
            def d_service():
                c = DService()
                return c
            
            # @pytest.mark.asyncio  # tried it too
            async def test_get_file_list(d_service):
                files = await d_service.get_file_list('')
                print(files)
            
            ...

            ANSWER

            Answered 2021-Nov-18 at 08:02

            This works for me, please try:

            Source https://stackoverflow.com/questions/70015634

            QUESTION

            Trouble getting reverse proxy working with TLS (to proxied server) in Golang with Gin
            Asked 2021-Oct-05 at 14:37

            I've been tasked with creating a reverse proxy that is required to make a TLS connection to the proxied service. The certificates I have are unique per request, and in-memory.

            I haven't had much luck getting it right, and I've tried a number of things. Here's where I'm at now, hopefully someone can help:

            ...

            ANSWER

            Answered 2021-Oct-01 at 17:10

            For TLS (ie https, which is http with TLS) you must connect to the correct server port. It is usually port 43 or port 8443. It is never the same as the port used for http. So this means that to start, the server must provide a port for TLS, although most do.

            The only code you've shared has nothing to do with the connection to the server.

            Since you've not shared any of the code making the request to the server, it is not possible to show where it is wrong.

            Here is a sample

            Source https://stackoverflow.com/questions/69408878

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install twisted

            You can install using 'pip install twisted' or download it from GitHub, PyPI.
            You can use twisted like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

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            Install
          • PyPI

            pip install Twisted

          • CLONE
          • HTTPS

            https://github.com/twisted/twisted.git

          • CLI

            gh repo clone twisted/twisted

          • sshUrl

            git@github.com:twisted/twisted.git

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