kill() in Windows?. Welcome to Geo-Python 2019!¶ The Geo-Python course teaches you the basic concepts of programming using the Python programming language in a format that is easy to learn and understand (no previous programming experience required). The extension show response messages. DataCamp offers a variety of online courses & video tutorials to help you learn data science at your own pace. Telegram Bot API The Bot API is an HTTP-based interface created for developers keen on building bots for Telegram. It’s bad because it’s super inefficient and not exactly “real-time”. They were my reading for the last few days, and gathered through twitter mainly, and some through hacker news. Having done long polling before in PHP, I've tried to go about it in the same way: A script/function that has a while(t. Polling 방식에 비해 요청/응답 트랜잭션이 덜 하다. The SDKs have built-in support for turning the event feeds into an event stream by long polling for new events. A dynamic web application of this kind is thought of as a better fit for an asynchronous framework like Tornado or Twisted, than for a traditional thread-pool and/or process-pool based approach like apache+mod_wsgi. http://translate. With the multiple document interface you can monitor several Modbus slaves and/or data areas at the same time. com/archive/dzone/Connect-cloud-apps-data-and-systems-via-integration-7928. XHR is basically asynchronous HTTP, and because you need to use a tricky technique like long-hanging GET for sending data from the server to the browser, simple tasks rapidly become complex. What is HTTP Long Polling? | PubNub In a Nutshell: HTTP Long Polling To overcome this deficiency, Web app developers can implement a technique called HTTP long polling, where the client polls the server requesting new information. requests is a library that lets you easily send HTTP/1. py > logs_from_rabbit. However, when using http long polling, multiple sequential requests from a given user need to reach the same instance. This is a web framework an an asynchronous networking library for Python. Python web applications use many types of files in addition to Python code, like images, stylesheets, HTML templates, and JavaScript code. But as long as the OP doesn't fill us in with more details of what he is after , this is all idle speculation. Between 2 and 3 years ago I started turning my long time passion for image processing, and particularly morphological image processing, to the task of fault segmentation. Django apps that run on App Engine standard environment scale dynamically according to traffic. Python Forums on Bytes. This is a web framework an an asynchronous networking library for Python. Service Bus queues are an alternative to Storage queues that might be useful in scenarios where more advanced messaging features are needed (larger message sizes, message ordering, single-operation destructive reads, scheduled delivery) using push-style delivery (using long polling). The ppoll() library call was added in glibc 2. Tornado uses the non-blocking network I/O, and hence is capable of scaling to tens of thousands of open connections. (I added an "=" to the "4sl" struct packing. The script asks for an input file name and an output file name and copies the input file to the output file. Socket and Socket. The engine is in C++, but then again, the Python interpreter itself also uses a lot of C code. Functions are pieces of code that perform a single action such as printing information to the screen (e. This class implements a fully compliant Socket. For a technical, in depth look at HTTP long polling and implementations for Python, Ruby and JavaScript, check out our article on WebSockets and Long Polling in JavaScript, Ruby and Python. Modbus Poll is a Modbus master simulator designed primarily to help developers of Modbus slave devices or others that want to test and simulate the Modbus protocol. Talk at the Codemotion Spain 2014 about how to handle communication (polling, long polling, websockets, SSE), concurrency (processes, threads, coroutines, green threads) and the C10K problem in python. Posts about python written by ongspxm. 04 (Precise Pangolin), which will be supported for 5 years on the desktop. GPIO module as the driving force behind our Python examples. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. The elif statement allows you to check multiple expressions for TRUE and execute a block of code as soon as one of the conditions evaluates to TRUE. When Polling - Free download as PDF File (. This is made possible by providing a standardized way for the server to send content to the client. Caleb Curry 25,097 views. Add callback function to be run once the long running operation has. People stopped to complain against Python 3, because we fixed the long list of the most common Unicode issues in Python. It is barely smart enough to. Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. Posted: (9 days ago) Python 3 Programming Introduction Tutorial. As opposed to XMLHttpRequest, Web Sockets provide a real bidirectional communication channel in your browser. IO server and client socket-io socketio socketio-server websocket long-polling low-latency web-server python asyncio eventlet gevent 318 commits. C# http long polling example. LinkedIn is the world's largest business network, helping professionals like Jörgen Modin discover inside connections to recommended job. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. com/archive/dzone/Connect-cloud-apps-data-and-systems-via-integration-7928. venv $ source. Using the Polling module in Python. A msrest service client. 04 (Precise Pangolin), which will be supported for 5 years on the desktop. https://www. The Hawkular Team collaborate on the Jaeger OpenTracing distributed tracing project. Python Forums on Bytes. You cannot ask the polling threads pool to have thread number 1 in charge of attribute att1 of device dev1 and thread number 2 to be in charge of att2 of the same device dev1. Python recursive function not recursing. Example: Traversing the. Contribute to justiniso/polling development by creating an account on GitHub. Polling is performed in loops and can potentially be processor intensive. Some of these projects are up to date and fully developed, others are relatively trivial or reflect a less experienced author. I have managed to get a program that spits out some data, but I am not getting all the data. Moving from polling to long-polling If you’ve built a REST API that clients poll for updates, you’ve probably considered adding a realtime push mechanism. You can vote up the examples you like or vote down the ones you don't like. Python appeals to me because at work (Web and eLearning Company), I have to follow out very repetitive tasks like delete all these tags, rename all these tasks and even more advanced repetive tasks. Long Polling. The GPIO pins on a Raspberry Pi are a great way to interface physical devices like buttons and LEDs with the little Linux processor. If you’ve built a REST API that clients poll for updates, you’ve probably considered adding a realtime push mechanism. In a practical application, the handler may subscribe to some channels on a message broker, for example. Python takes only a single line which means, less coding effort and time is required for writing the same program. Scaling a polling Python application with parallelism. GPIO - part 2 Input and Output, interfacing, python programming, raspberry pi Add comments Mar 202013 Interrupts are an efficient way for a program to be able to respond immediately to a specific event. If a subclass of Model is given, this passes "deserialize" as callback. html 2019-12-27 16:12:09 -0500. It is about food, cooking and grocery shopping. Lightweight execution units based on greenlets. Caleb Curry 25,097 views. x uses the raw_input() function to get user input, whereas Python 3. These libraries allow you to build any network applications (multiplayer games and chat rooms. default: none. The python, about ten-feet long, coiled around the neck of the worker. Workers can be written any language as long as they can poll and update the task results via HTTP endpoints. A long-polling Comet transport can be created by dynamically creating script elements, and setting their source to the location of the Comet server, which then sends back JavaScript (or JSONP) with some event as its payload. The vicious three-way fight has surprised tourists with a twisted end after the honey badger was rescued from a. #!/usr/bin/python var = 100 if var == 200: print "1 - Got a true expression value" print var elif var == 150: print "2 - Got a true expression value. Così long-polling su un semplice, puro Python web framework come il Pallone è il modo di andare IMO. Previous LTS Linux distributions shipped with a Python-2 version which users can rely upon instead of the Python-3 version. Simple WebSocket Client is an extension for Google Chrome to help construct custom Web Socket requests and handle responses to directly test your Web Socket services. This class implements a fully compliant Engine. 2 released, official Long Term Support¶ We are happy to announce the release of Varnish Cache 6. ActiveState Code - Popular Python recipes Snipplr. You can vote up the examples you like or vote down the ones you don't like. The real issue here currently is that those tasks are I/O intensive and executing them serially is very long. Now the source encoding declaration on the second line isn't effective if the first line contains anything except a comment. Some HTTP requests are long running and instead of asking users to wait for the long running operation to complete, they will return a "request status URI" that, when requested, will return a running/success/failure message. In this step-by-step tutorial, you'll learn how to make a Twitter bot in Python with Tweepy, which is a package that provides a very convenient way to use the Twitter API. Essentially, in Python 3, the print statement has been replaced with a print function. Let’s Program with Python: Statements, Variables, and Loops (Part 1) – In this four-part introduction for new programmers you’ll learn the basics of programming with Python using step-by-step descriptions and graphical examples. python,recursion. Brizzly is using a combination of tornado and django with long polling. My intention with this poll was not to determine a "winner", but to learn from all the experiences you guys and galls have with developing in Python. Popen , subprocess. Scaling a polling Python application with parallelism. Polling is a necessity because it is the most ubiquitous way to detect changes. net/projects/roboking&hl=en&ie=UTF-8&sl=de&tl=en. Additionally it would be good for me to get an understanding of Python first because of its fairly easy to learn syntax. Please read our documentation on using Node. A callback that takes a Response and return a deserialized object. That's because a flask app is in single threading mode by default when running with app. Caleb Curry 25,097 views. In this tutorial, we will learn about Python reversed() in detail with the help of examples. Long polling is implemented on the back of XMLHttpRequest, which is near-universally supported by devices so there’s usually little need to support further. */ + + The rest is payload (non-interleaved) 16-bit data. Così long-polling su un semplice, puro Python web framework come il Pallone è il modo di andare IMO. View Jörgen Modin’s professional profile on LinkedIn. Long processing computation in Tkinter or long-running task (Python recipe) "Polling" will be the frequency to poll to check for results. html and admin. When the loop exits, a Python dictionary is returned as the function's result. Powerful polling utility in Python. If you are familiar with programming concepts in general and scripting languages in particular, getting started with Python shouldn't take you too long. 2 comes with a new standard module to launch concurrent tasks and wait for them to end: the concurrent. NET with 40+ Learning Paths. Long Polling 은 실시간 메시지 전달이 중요하고 서버의 상태 변경이 빈번히 발생하지 않는 서비스에 적합하다. However, the methods are different for Python 2 and 3. WebSockets and Long Polling in JavaScript, Ruby and Python. This release is comprised mostly of fixes and minor features which have been back-ported from the master branch. If you don't have Python 3 available, you can use the more verbose: Can a polling station in the. As a lot of you know, I recently got my first BP. Flask is a lightweight WSGI web application framework. js, C#, Python, and Ruby code, and provides a Runtime API which allows you to use any additional programming languages to author your functions. Simpler long polling with Django and gevent. to generate the response and thus complete the long polling request. long_polling_receive_message. This is because both Python when using WSGI and PHP are synchronous systems and need a process or thread to handle every request. Originally released in 2002, Twisted predates even PEP8, so the code of the project does not follow the famous code style guide recommendations. x release series, and is certainly the last 4. Long polling - open source solutions. Parameters: logger - To enable logging set to True or pass a logger object to use. Old Post(Pre-Update) A while ago I put together a python script that reads a Wikipedia page and strips out all the equations with regular expressions and places them in an html page for easy access. Since it is more efficient to make I/O channels to block and wait for something to happen rather than poll at regular intervals, we want I/O to be handled in separate threads. A simple long-polling example based on Flask-restful and jQuery - sigilioso/long_polling_example. The PubNub Data Stream Network is a very powerful, highly scaled, reliable service for sending and receiving messages across the globe at extraordinary speed and volume. It supports multiple channels and cross-domain requests. failover_base - Dir to store failover config files. So I recognize this as a problem because I work everyday making transcriptions of a lot of songs for a website using VLC as my music player. For a fair comparison, the conditions should be approximately the same. The location of the Python executable on Windows is C:\python34\python. Moving from polling to long-polling. Monty Python's Terry Jones: Master. GitHub Gist: instantly share code, notes, and snippets. Python interpreter determine how long a thread‟s turn runs, NOT the hardware timer. 5-2 times slower than nodejs when used with proper asynchronous libraries. LEARNING WITH lynda. default: none. September 7, 2017 at 1:01 am. 1) between read requests is really appropriate. I need a python routine that can open and import TIFF images into numpy arrays, so I can analyze and modify the contained data and afterwards save them as TIFFs again. Long polling is better off implemented using an async web server and framework. XHR is basically asynchronous HTTP, and because you need to use a tricky technique like long-hanging GET for sending data from the server to the browser, simple tasks rapidly become complex. Other libraries similar to Tornado include Pulsar (async) and Gevent (greenlet). com/archive/dzone/The-Complete-2020-Localization-Guide-for-Agile-Teams-8079. select() is O(highest file descriptor), while poll() is O(number of file descriptors). If you're a Python developer, there's a sweet library called RPi. By default (unless we instantiate NotionClient with monitor=False), we also subscribe to long-polling updates for any instantiated Record, so the local cache data for these Records should be automatically live-updated shortly after any data changes on the server. http://translate. Quiz of the week: Do you. timeout - (optional) requests timeout. Since Python is easy to apply, it is a great choice for startups. Python 2 has several methods in the os module, which are now deprecated and replaced by the subprocess module, which is the preferred option in Python 3. The questioners are asked to speak in even tones, reading from scripts. Detect eyes, nose, lips, and jaw with dlib, OpenCV, and Python. Having done long polling before in PHP, I've tried to go about it in the same way: A script/function that has a while(t. JSONP uses this advantage, and request files using the script tag instead of the XMLHttpRequest object. Click Open. Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. This is known as 'polling' and can potentially miss an input if your program reads the value at the wrong time. AWS Lambda natively supports Java, Go, PowerShell, Node. For a fair comparison, the conditions should be approximately the same. Notice! PyPM is being replaced with the ActiveState Platform, which enhances PyPM's build and deploy capabilities. By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. I'm usinglistingspackage to put a python code inside an article. The GPIO pins on a Raspberry Pi are a great way to interface physical devices like buttons and LEDs with the little Linux processor. Python method popen() opens a pipe to or from command. Why does Python sometimes take so long to start? How do I make an executable from a Python script? Is a *. Many Thanks. 5 was chosen as a minimum because it is the earliest Python-3 version adopted as the default Python by a Long Term Support (LTS) Linux distribution (in this case, Ubuntu-16. A handshake is made, a connection is created, and, unlike HTTP, multiple messages are expected to be sent over the socket until it is closed. Let’s take a look at each one. The general election is underway here in Ireland with polling day set for Saturday 8th February. This enables developers to build realtime applications, and pushes new data as it happens. long_polling_create_queue. Ballot anonymity at UK polling stations. */ + + The rest is payload (non-interleaved) 16-bit data. But as long as the OP doesn't fill us in with more details of what he is after , this is all idle speculation. It's free to sign up and bid on jobs. net/projects/roboking&hl=en&ie=UTF-8&sl=de&tl=en. The return value is an open file object connected to the pipe, which can be read or written depending on whether mode is 'r' (default) or 'w'. I've built a very long career almost entirely with dynamic languages like python, perl, ruby and Tcl and have loved every minute of it. REST Hooks are 66 times more efficient than traditional polling. org is available. Socket Servers in python. The 2020 Python Bowl kicks off today at a park on the edge of the Everglades. I apologize for leaving the obsolete code up for so long. Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. The Annual Plan charge includes 12MB of data that can be consumed within the year. Ci sono tre parti: serve. x release series, and is certainly the last 4. Polling, or polled operation, in computer science, refers to actively sampling the status of an external device by a client program as a synchronous activity. What is HTTP Long Polling? | PubNub In a Nutshell: HTTP Long Polling To overcome this deficiency, Web app developers can implement a technique called HTTP long polling, where the client polls the server requesting new information. 0 Note: This is no longer the most current Python release. I think adding polling to such a widely-used primitive is out of question. As you have undoubtedly figured out for yourself, you need to make. timeout – (optional) requests timeout. Since Python is easy to apply, it is a great choice for startups. Today in Python Web Framework tutorial, we will briefly discuss Web Frameworks offered by Python Programming Langauge: Full-Stack Frameworks in Python, and Non- Full-Stack Frameworks in Python. GitHub Gist: instantly share code, notes, and snippets. Our test task will be something you may likely need if you have on your site any sort of user communication. Brizzly is using a combination of tornado and django with long polling. The following are code examples for showing how to use telegram. Things that I've Written: I used to have a bad habit of losing things that I had written. py Idle for too long; doing some other stuff. Now, JavaScript is a different story, but Python seems to execute it fairly well. */ + + The rest is payload (non-interleaved) 16-bit data. In this article, Toptal engineer Jongwook Ki. It enables a new class of appl. #GE2020 Analysing Party Manifestos using Python. Both the old version and the new version work on my 32-bit machine, but the Python documentation for the struct module suggests that "l" would be 64 bits on an LP64 or LPI64 platform without it, so I thought it would be prudent to add. In this chapter, we will discuss regarding Fallbacks, Connection using Socket. After reading this article and following along with your own basic program, you should have a solid foundation for beginning your own application development. This simplistic example keeps track of connected clients in memory. This class implements a fully compliant Engine. We will solve the task using long-polling, Server-Sent Events and WebSockets. It's free to sign up and bid on jobs. In this post we shall learn how to write a simple socket server in python. But as I said, it's inelegant. This blog article today is non-technical. All the politicians are out campaigning and every day the various parties are looking for publicity on whatever the popular topic is for that day. By default, messages are received using long polling. The Annual Plan charge includes 12MB of data that can be consumed within the year. This is a web framework an an asynchronous networking library for Python. The stitching method was suitable for making thin notebooks, but for thicker pads of paper, it protrudes out significantly, not ending up with a nice effect. File Polling (Rereading). edu O’Reilly Open Source Conference July 17, 2000 O’Reilly OSCON 2000, Advanced Python Programming, Slide 1 July 17, 2000, [email protected] Now the source encoding declaration on the second line isn't effective if the first line contains anything except a comment. The polling expert Sir John Curtice has issued a clear warning to Boris Johnson and Jeremy Corbyn, claiming the Tory lead could fall if Jeremy Corbyn is able to unite the pro-Remain parties. Note that Python 2. Moving from polling to long-polling. If you're new to Django development, it's a good idea to work through writing your first Django app before continuing. Conductor provides frameworks for Java and Python to simplify the task of polling and updating the status back to Conductor server. If your mission with Python is to develop for the Web, Python will help you with that with its range of frameworks. html 2019-12-12 21:12:21 -0500. TCP/IP Client and Server¶. Monty Python star Terry Jones has died at the age of 77 after battling with dementia Monty Python's best comedy sketches as funnyman Terry Jones dies aged 77 Share. They were my reading for the last few days, and gathered through twitter mainly, and some through hacker news. Telegram Bot API The Bot API is an HTTP-based interface created for developers keen on building bots for Telegram. com/translate?u=http://derjulian. Websockets are extremely lightweight on the server, but not all browsers can make Websocket connections. Async Poller for long running operations. Christopher Johnston FIFA Master student Eduardo Tavares worked in the loan player department at Chelsea FC before joining the prestigious DMU course and is delighted to see Tammy Abraham realising his potential. 13 thoughts on " Get Unix timestamp in Java, Python, Ruby, Erlang, JavaScript, Go, MySQL " jeyc June 22, 2009 at 13:05 thank you =) your post is usefull for me. Python Socket. In this video, PubNub CTO Stephen Blum gives a quick overview and use case for HTTP long polling. That's because a flask app is in single threading mode by default when running with app. 04 (Precise Pangolin), which will be supported for 5 years on the desktop. How to use interrupts with Python on the Raspberry Pi and RPi. Brizzly is using a combination of tornado and django with long polling. The argument may be a floating point number to indicate a more precise sleep time. https://www. I can't find information about polling interval in Dev guide or 'How to Write a Simple Miner'. Monty Python comedian Terry Jones has died, at the age of 77. Socket and Socket. CNX_POOL_MAXSIZE (default 32). Standard polling from an AJAX app will typically send a request at a given interval. 0, and it contains many bug fixes and some new features. On Thursday, the House impeachment managers will read the articles of impeachment against President Trump in the Senate chamber and the chief justice of the Supreme Court and every senator will be. Each time the script request is completed, the browser opens a new one, just as in the XHR long polling case. What you will need for this tutorial series: Either ActivePython, which is a pre-compiled distribution of Python, which comes with most of the packages you will need right away, or vanilla Python 3+, downloaded from Python. The Hawkular Team collaborate on the Jaeger OpenTracing distributed tracing project. Python has same precision as in C language, usually 32-bit binary number. Can be a SDK client and it will be casted to a ServiceClient. The engine is in C++, but then again, the Python interpreter itself also uses a lot of C code. As you have undoubtedly figured out for yourself, you need to make. to generate the response and thus complete the long polling request. I'm experiencing a strange behavior with Atmosphere + Long Polling. Client Side. LinkedIn is the world's largest business network, helping professionals like Jörgen Modin discover inside connections to recommended job. Backward/sideways baseball caps may be for the young, but rhythm is ageless. Tornado further comes with an in-built HTTP server, which allows it to serve the applications. In our case, you will set up the back-end to be the server and the front-end to be the client. This article focuses mainly on solving 3 problems: Apply long-polling technique using jquery ajax() function. Polling 방식에 비해 요청/응답 트랜잭션이 덜 하다. If you are writing code that needs to include timing functionality, Geir Arne’s codetiming module is well worth looking at. A handshake is made, a connection is created, and, unlike HTTP, multiple messages are expected to be sent over the socket until it is closed. SignalR: Why You Should Not Have To Care This long polling pattern and similar patterns give the user the illusion that a persistent two way connection exists between the. Afraid I don't know much about python, but I can probably help you with the algorithm. Recommend:jquery - Python's Bottle & Long-Polling es of this question, assume that single page is naught but a basic short-polling chat, retrieving chatline objects from Python that contain only the sender's name and the body of the message. It provides a clean API for a variety of concurrency and network related tasks. The Python library used by this integration leaks memory under certain circumstances. Python Server Sent Events Introduction. 0, and it contains many bug fixes and some new features. Tkinter is already set in its own Loop which is a Single Thread Process the only secondary process within tkinter is a Toplevel Window. File Polling (Rereading). 14 thoughts on " Receive full data with the recv socket function in python " Rufus V. Doing the same for HTTP long polling efficiently would be a rather complex thing to do. 2018-11-12 - Varnish 6. New ideas and observations bubble up everyday, and modules are usually developed in Python first. Output editted for readability. CNX_POOL_MAXSIZE (default 32). Unfortunately, Python 2 does not have a way to timeout the communicate method call so it just blocks until it either returns or the process itself closes. Connection pooling means connections are reused rather than creating each time when requested. What's more, libusb may also need to handle events at specific moments in time. This post builds on the contents of the previous article in this series, namely ZeroMQ – How to Interface Python/R with MetaTrader 4. It is the easiest mechanism to consume and also the easiest to make reliable. How long to wait for the server to send data before giving up, as a float, or a (connect timeout, read timeout) tuple. Examples of JavaScript client libraries and Python implementations are shown in a section below. receive_message. Nov 21, 2016 • posted by justin • filed under api, api-design, grip, pushpin. IO does fall back to AJAX long polling when web sockets are not available, if you do not want that to happen, you can use plain WebSocket API. I need a python routine that can open and import TIFF images into numpy arrays, so I can analyze and modify the contained data and afterwards save them as TIFFs again. If your mission with Python is to develop for the Web, Python will help you with that with its range of frameworks. please if you could guide me the way to read pdf file in python. So, in WEPMA fashion, here is the interesting bit, a lexical analyzer that produces identifiers, line numbers, and tokens indicating the start and end of lexical scopes. Today I have a few links to share with your. That is notification of user actions. For longer programs, or ones that are used frequently, the code is usually written into a file and then executed from the command line or as an element of a more complex set. How PubNub Works Learn how PubNub works and key concepts. Hi Frank, i have found your website very useful as i am python learner. Nov 21, 2016 • posted by justin • filed under api, api-design, grip, pushpin. Generally, we have seen that python programming language is extensively used for web development, application development, system administration, developing games etc. You can use your Twitter bot to automate all or part of your Twitter activity. An explicit wait is a code you define to wait for a certain condition to occur before proceeding further in the code. My intention with this poll was not to determine a "winner", but to learn from all the experiences you guys and galls have with developing in Python. In the simplest case when the user gets a private message, the number of unread notifications increases in the user panel. With long polling, receiving a message from an empty queue will no longer return immediately. This has already been covered in the previous tutorial. Polling 방식에 비해 요청/응답 트랜잭션이 덜 하다. How long to wait for the server to send data before giving up, as a float, or a (connect timeout, read timeout) tuple. Thanks Jason for your contribution and all the others that have shared their comments at this poll. Translated version of http://derjulian. Read on and find out what the Python standard library has to offer. Retrieves one or more messages (up to 10), from the specified queue. For long-polling, Tornado on PyPy is approximately 1. Long-polling is good because it works in every browser; even the super old ones.