Wednesday, September 28, 2011

Object Oriented Concurrency: A Deep Dive into Celluloid (Part 1)

There's a quote from Alan Kay I've often cited as a source of inspiration in my various projects, from Revactor to Reia to Celluloid:
"I thought of objects being like biological cells and/or individual computers on a network, only able to communicate with messages"--Alan Kay, creator of Smalltalk, on the meaning of "object oriented programming"
This conception of objects likens them to things in the world which are very much concurrent. Every cell in your body is running at the same time, and cells communicate with each other using chemical signals. Computers on a network are all running at the same time, sending each other messages via network protocols.

In Alan Kay's conception of object oriented programming, it should be a natural model for concurrency. However, most languages that describe themselves as "object oriented" today bolt on concurrency as an afterthought, just a thin abstraction layer around the concurrency primitives provided by the operating system, such as threads, conditions, and mutexes. The hardware and OS people went through the herculean effort of abstracting hardware-level concurrency into threads, and from there, for the most part the programming language people haven't done much, at least in mainstream object oriented languages.

The exception lies in the functional language domain, in languages like Haskell, Clojure, and Erlang. Erlang, in part inspired by Alan Kay's language Smalltalk, has abstracted concurrency in such as way that users of the language are able to reason about it intuitively, something which can't be said for most users of threads. The key to Erlang's success, its secret sauce, lies in its message-based concurrency system, a system inspired by Smalltalk.

Smalltalk is generally considered to be the forerunner of all object oriented programming languages, but when it comes to taking to heart Alan Kay's conception of a message-based system, Erlang beats the mainstream object oriented languages hands down. Erlang has also incorporated the idea of communicating sequential processes, first seen in languages like Occam. By combining the ideas of Smalltalk with those of communicating sequential processes, Erlang created a system where concurrency is baked into the core of how the language operates, enabling fully isolated processes that talk to each other with asynchronous messages.

If this idea works so well in Erlang, can it be added to other languages in a way that makes sense?

From Actors to Concurrent Objects

Given Erlang was vicariously inspired by Smalltalk, an object oriented language, is there any reason why Erlang's ideas can't be applied to present-day object oriented languages to give them concurrent objects? The way Alan Kay describes objects they should inherently be concurrent, but the way we're used to working with objects is inherently sequential.

A whole slew of projects, including one of mine, have tried to implement Erlang's concurrency model in Ruby. None of them have been popular. In my opinion, this is because these projects (including my own project Revactor) have stuck far too close to Erlang, trying to write an Erlang DSL in Ruby instead of trying to reimplement these concepts in a Ruby-like manner. This makes trying to learn them pretty confusing, to the point where the best way to learn them is to first learn Erlang, then after you understand how Erlang works, you can translate in your head from Erlang into these Erlangy Ruby DSLs. Seems bad...

I read a blog post recently about how in the Smalltalk objects that end in "-er" (e.g. Manager, Controller, Builder, Worker, Analyzer) are "bad." For a long time I've thought much the opposite, that there are fundamentally two different types of objects: those which are inanimate and represent objects in the world, and those which are animate and active and manipulate the inanimate objects. I see the programming world as consisting of two very distinct things: actors, and the objects which they act upon. It's not that objects that end in -er are inherently bad, it's simply that OOP languages (including Smalltalk) have never contained the proper primitive for modeling their behavior.

Celluloid is a new kind of concurrency library. It allows you to model concurrent (i.e. thread-backed) actors in a system but still interact with them as if they were plain old Ruby objects. All you need to do to create concurrent objects in Celluloid is to include the Celluloid module in any Ruby class:

That's it! Just by doing "include Celluloid" all instances of this class you create will not be normal Ruby objects, but instead fully concurrent Celluloid-powered objects. These objects will continue to function just like any other object in Ruby. When you call methods on them they return values. If a method raises an exception, the method call aborts and the exception will continue to propagate up the stack.

I want to emphasize this because I think it's incredibly important: users of concurrent objects should not need to be aware that they're concurrent. They should work as closely as possible to any other plain old sequential objects.

Concurrent Objects in Celluloid

I'm going to help you understand how Celluloid works by first starting from a diagram of normal Ruby object interactions and building up from there. Let's start with a diagram of one method calling another:

Hopefully this diagram is easy to understand. Calls come in, responses go out, never a miscommunication! A call consists of the name of a method to invoke and arguments. The response consists of a value to return, or an exception to be raised. Object oriented dogma would have you think of a call as the caller sending a message to the receiver, which in turn sends a response back.

Now let's look at a concurrent object as implemented by Celluloid:
A quick overview: the caller and proxy objects function like normal Ruby caller and receiver objects in the previous diagram. However, the actor circle (i.e. the giant olive-looking thing) represents Celluloid's encapsulation of concurrency. Each actor runs in a separate thread, and exchange messages with proxy objects through their mailboxes, which are thread-safe message queues. Let's dive in!

All communication between regular Ruby objects and Celluloid's actors passes through a proxy object which intercepts the calls. This proxy is responsible for the central illusion that makes Celluloid's concurrent objects as easy to use as any other object, despite them being off in a distant actor somewhere that you must communicate with via messages through thread-safe mailboxes. The proxy object abstracts that all away, and gives you the familiar object-dot-method syntax that you know and love.

The proxy object translates the method call from a normal invocation into a Celluloid::SyncCall object. This object contains the method to be invoked and the parameters. This message is sent from the proxy to the recipient actor by way of its mailbox (which is an object of the Celluloid::Mailbox class).

Mailboxes work like thread-safe message queues, allowing several pending method invocations that the actor can process one-at-a-time. After a method has been invoked on the receiver object, the return value is sent back to the proxy in the form of a Celluloid::Response object. This value is then returned from the original method call made to the proxy.

This gives us the same behavior as a normal method call. However, normal Ruby objects aren't concurrent. To gain concurrency, we need to go beyond the normal method call pattern.

Adding Concurrency: Async Calls and Futures

Celluloid provides two methods for breaking out of the typical request/response call pattern:

  • Asynchronous calls: send a Celluloid::Call to a recipient actor, but doesn't wait for a response. The method call to the proxy returns immediately. To make an async call, add "!" to the end of any method.
  • Futures: allow the value a method returns to be obtained later, while that method computes in the background. To make a future call to an actor, use the #future(:method_name, arg1, arg2... &block) syntax. This returns a Celluloid::Future object, whose value can be obtained by calling Celluloid::Future#value
Let's look at these both to see how they actually work. First an asynchronous call, as we'd do it from Ruby code:

Even though ScarlettJohansson doesn't have an #oops! method, things are continuing to work as if you made two calls to the normal ScarlettJohansson#oops method, but no value is returned. Here's a diagram of what happens when you make an asynchronous call:

Asynchronous calls do not wait for responses, but forward a request for a method to execute, immediately returning back to the caller. No mechanism is provided to obtain a response to this call; async calls are a strictly fire-and-forget type of affair.

What if we want to invoke a method asynchronously but obtain the value the method returns at some point in the future? Enter futures!

Let's imagine we have a small army of Scarlett Johansson clones leaking photos on the Internet. Each one of them takes a little while drinking booze and fumbling around with their phone before they're actually able to post a nude photo. How can we tell them all to start doing this then reaping the results instantaneously when they're done? Let's use Celluloid::Actor#future to accomplish this task:

Our Scarlett Johanssons are now leaking photos to the Internet in parallel, and the wall clock time needed to have all of them get drunk and fumble around with their phone in order to post their nude photos is now barely more than the time each individual Scarlett took to post a couple photos. We're able to get the return value from ScarlettJohansson#oops after asynchronously requesting it be computed. How does this work exactly?

Celluloid implements futures through the Celluloid::Future object. Futures represent the result of a method which may or may not have finished executing before its result is requested. To obtain the result of a given future, call Celluloid::Future#value, but you need to be aware that Celluloid::Future#value will block until the method the future is associated with has finished executing.

Obtaining the value of a pending future is, like always, synchronized through a Celluloid::Mailbox object, which is used to provide a thread-safe interaction point for receiving the result of a method call if it hasn't already completed.

More to come!

I'd originally hoped for this blog post to contain a lot more, but honestly it's been sitting around half-finished for so long I thought I'd break it apart into a series.

In Part II, I'd like to cover what makes Celluloid truly unique (to my knowledge) among similar systems: "reentrant" method dispatch. This post will cover problems in existing RPC systems, including Erlang's gen_server, and discuss why Celluloid provides a more natural object abstraction. It will also explain why and how Celluloid uses Fibers to solve this problem, and the additional features that can be built upon Celluloid's reentrant method dispatch.

Part III (if I get that far) will provide a more in-depth look into some of the Erlangier features of Celluloid such as linking and supervision, and also discuss the roadmap for integrating some additional Erlang features into the Celluloid framework such as OTP-style applications and distributed actor systems. Stay tuned!


«Oldest   ‹Older   201 – 287 of 287
Huongkv said...

Liên hệ đặt vé tại Aivivu, tham khảo

vé máy bay đi Mỹ bao nhiêu

vé máy bay từ seattle về việt nam

giá vé máy bay từ canada về Việt Nam

Lịch bay từ Hàn Quốc về Việt Nam hôm nay

Hero Gayab Mode On said...

hero gayab mode on today hd Hero – Gayab Mode On is an Indian SONY SAB TV Serial. Hero Gayab brings latest episode watch live on our website. More information email us

Rehan said...

Bigg Boss 14 writtenupdate brings latest written updates For You, written episodes, news, reviews, articles, and much more for Indian TV serials, Like Colors TV, Star Plus, Star Bharat, Zee Tv and more.

Pokerwin13 said...

Kebanyakan orang pasti mengenal permainan slot online, karna game tersebut merupakan salah satu jenis permainan yang paling banyak dimainkan. Selain itu anda juga bisa memainkan slot secara online melalui balakslot situs slor onlinr terpercaya, informasi lengkap bisa anda dapatkan di

arshiya said...

Very Nice article, thanks for sharing the article.
devops methodology
habits of success
mobile application testing tools
why web development is important
advanced excel interview questions
ethical hacking books

maverick said...

kunjungi website kami terima kasih ya bos joker gaming

maverick said...

agen capsa terbaik Great Article. Looking great work dear, I really appreciated to you on this quality work. I would like say thanks for this post.

joker123 said...

Great Article. Looking great work dear, I really appreciated to you on this quality work. I would like say thanks for this post.
Poker Uang Asli
Judi Poker Online
Judi Poker Indonesia
Judi Domino Online

Precision Outdoors said...

Precision Outdoors provides lightning fast shipping on the most trusted brands in gun parts & accessories like Ar 15 accessories, Ar stock, Law tactical folders, red dot sights, rifle scopes, magazines, frames, barrels, triggers, stocks, and much more...

So don't wait anymore Visit us now!

Sharnith said...

It is the best information for this topic and kindly updating here...
Openspan Online Training
Openspan Online Course
Matlab Training in Chennai
Leadership Training in Chennai

joker123 said...

Great Article, just wanted to tell you, I loved this post.
It was helpful. Keep on posting!
Judi Domino QQ
Judi Domino 99
Judi Ceme Online
Judi Capsa Susun
Judi BandarQ Online
Judi AduQ Online

Gaurish said...

I always like to read a quality content having accurate information regarding the subject and the same thing I found in this post.

Website Development Company |

Gaurish said...

Great information, i was searching of this kind of information, thank you very much for sharing with us.

Craigslist Posting Service for Car Dealers |

Gaurish said...

This was something I was looking for, really helpful, and great work is done. Thank you so much for sharing such valuable information.

Car Auction Software |

marjono kang sayur said...

Temukan cara cari Agen Situs Judi Slot Terpercaya dengan Bonus New Member Terbesar, hanya dengan mengunjungi

Pokerwin13 said...

Memperoleh promosi saat bermain game slot online sudah pasti menjadi dambaan semua pemain, dan kamu bisa mendapatkan promosi dengan memainkan agen slot promosi online terbaru dengan cara sebagai berikut

joker123 said...

poker IDN

12122 said...


SBOBET88 said...

langsung aja klik pada link ini agar anda bisa main di agen judi slot online asli indonesia dengan pelayanan super mantap 24 jam non stop dan sudah dipercaya oleh para bettor veteran

Braveforce said...

Blog exceptionnel !
chirurgie esthetique Tunisie

Anonymous said...

Tennis shop uk is the UK's leading online Tennis Shop. We supply the best range of equipment including Babolat tennis rackets, Head tennis rackets , clothing bags and balls from Babolat, HEAD, Dunlop, MANTIS, Yonex and Tecnifibre.

12122 said...

Vighnaharta Ganesh 29th April 2021 Full Episode 885 gillitv

Emcee Singapore said...

Looking for an experienced professional emcee in Singapore who is known in the world of weddings and events? Introducing Emcee James Yang, one of Singapore’s most sought-after Emcees & a veteran in the corporate world and wedding industry.

Singapore Emcee James Yang is a dynamic emcee whose magnetic personality engages the audience unlike any other master of ceremonies. Events hosted by him are like a dialogue between himself the audience. He speaks, they laugh, he charms, they respond in kind; every moment is compelling and interactive.

His reputation as a Professional Singapore Emcee has gradually risen over the years and his career is proof of his versatility- from celebrities to military personnel and countless event/wedding companies, he’s collaborated with them all. Whichever the occasion, James is often the Top Choice Emcee amongst clients.

kHan said...

Teri Meri Ik Jindri Watch Online All Indian TV Shows, Dramas, desi serials Reality Shows on Desi TV Box, Color TV and Zee TV brings latest episode watch live on our website. More information email us

Flowline Center said...

Instagram is the most popular platform to show your passion, products and everything else. The more Instagram followers, likes and views will bring more engagement. Buy Instagram followers or Buy Instagram Likes now to promote your brand and account. Get your %100 real followers without losing any of them. Buy Instagram likes and buy Instagram views to further expand your profile.

Flowline Center offers 100% genuine and permanent Instagram followers, likes and views to strengthen your profile.Our offering includes different types of packages that will help meeting your different needs.

Analyze your current profile, set your targets and Buy Instagram views , buy your followers and likes just in minutes!

You will get your Instagram package immediately and start promoting your Instagram profile without losing time!

Aerocity Service said...

Paharganj Escorts
Dwarka Escorts
Russian Escorts Noida
Russian Escorts Delhi
Karol Bagh escorts
Delhi Escorts Service
Escorts in Delhi
Call girls in Delhi
Delhi escort
Aerocity Escorts

Oluwaxheun said...

Check Out Latest Songs From South Africa

Conversions Kitchen said...

Did you just hear the term ‘AliExpress Dropship Center’ but don’t know how to leverage it for dropshipping in 2021?

Dropshippers who are struggling with negligible revenues and are in search of improving their sales, take notes and visit our site so that we can help you.

Sab Kuch said...

Gilli Tv

Watch Hindi channels star plus, Colors tv, Sony Tv, ZEe bangla, Star Jalsa, hotstar, zee5, voot, sony liv, sun nxt dramas full episodes watch online hd quality videos. Watch free online hindi language premium web series of zee 5, hotstar, voot, ALT Balaji, amazon prime or netflix i at Gilli TV

Scottishkilt said...

Great article! This is the type of information that are meant to
be shared across the internet. Thank you for sharing such a useful post. Very Interesting Post! I regularly follow this kind of Blog.
website: click here

Fazzaco said...

Fazzaco is a worldwide intelligent stage with data total, planning to improve the associations and efficiencies between Forex organizations.

In Fazzaco, you can:

1. Do a single tick look and get different data, including the ones from Forex provider,Forex liquidity provider, Forex CRM Forex specialist, Trading programming, white-name, Liquidity, Bridge, CRM, Payment administrations, Social media, Conferences and so on

2. Get worldwide Forex data successfully

3.Leave audits on organizations and surveys will be the key reference data utilized by organizations for data looking

At present, Fazzaco has effectively assembled a framework for vendor data show, news, and different administrations, assembling the helpful information. from everywhere in the world.

Sab Kuch said...

Green Villa

latest news of entertainment,tech,finance,loan

Sab Kuch said...

Green Villa

latest news of entertainment,tech,finance,loan

Rahul said...

Everything is perfect with this work. The writer has managed to keep the article interesting while discussing some really serious points. This is not easily done. All the best.
Easy Admissions

Escorts Service Kolkata said...


R1se Hluoluo said...

Berubah sedikit dari India ke arah Pakistan. Pakistan jadi salah satunya negara yang mempunyai teh susu dengan rasa ciri khas, lho. Minuman ini namanya Noon Chai.

Noon Chai jadi salah satunya teh susu dengan rasa unik dari bermacam luar negeri yang cukup terkenal tidak cuman di negara aslinya, tetapi juga di beberapa negara sekelilingnya. Noon Chai kerap dikatakan sebagai Pink Tea karena berwarna pink dan membuat berlainan dengan teh biasanya.

Minuman ini dibuat dari teh, susu, gula, garam dan soda kue. Umumnya warga Pakistan memberikannya tambahan kacang-kacangan. Noon Chai umumnya dihidangkan di saat upacara pernikahan di Pakistan.

vivikhapnoi said...

Keep up the good work , I read few posts on this web site and I conceive that your blog is very interesting
mua ve may bay tu han quoc ve viet nam

vé máy bay giá rẻ tu Nhat Ban ve Viet Nam

vé máy bay từ singapore về sài gòn

vé máy bay giá rẻ tu Dai Loan ve Viet Nam

khi nào có chuyến bay từ canada về việt nam

đặt vé máy bay giá rẻ từ mỹ về việt nam

Dubai Fun Club said...

Dubai Fun Club for luxurious Dubai Escorts and entertainment services. You can easily find the best Escorts in Dubai on our website

Juliany said...

Golongan Taruhan Bola Yang Menjanjikan sampai Mulai sorang member bola yang pandai bukanlah tantangan yang simpel serta semuanya berharga dalam pahami dari awal. Kalian perlu melafalkan konsep bertaruh, terdiri dari investasi pengetahuan akan bola dan uang bola itu sendiri, dan melaksanakan analisa yang rasional hendak tiap-tiap betting anda merupakan cara mendasar yang berharga pada laksanakan oleh tiap bettor.

Juliany said...

Tips Kemenangan Judi Bola Update Dan Mudah. Memasang Taruhan taruhan bola secara online sangatlah menguntungkan buat pecintanya.

Dimana dalam permainan judi betting bola yg dijalankan secara update ini ingin senantiasa bisa mulai media buat membeli keuntungan darinya. Dan pesatnya bertumbuhnya sedari permainan uang bola tersebut sesuai senantiasa siapapun makin tinggi kesempatan kelebihan kita.

Juliany said...

Cara Menghindari Blunder Saat Berjudi Bola Online ataupun kesalahan merupakan faktor yang wajar di melaksanakan dalam setiap manusia. Makin sebauh mesin atau juga program yg pada rancang dengan cocok pun tidak terhindar sedari sebuah kesalahan. Oleh lantaran seperti kesalahan pada memasang taruhan bola yg dalam lakukan dalam tiap pemain adalah sesuatu yg begitu lumrah muncul bersama boleh di maklumi.

Juliany said...

Tentu Saja oleh Tips Cermat Dalam Memasang Taruhan Sportsbook, para artist yang memainkan bola digital membawa pengetahuan yang agak besar.

Juliany said...

Tentunya dalam Tips Akurat Dalam Bermain Sportsbook, para artist yg memainkan bola online membawa pengetahuan yg lumayan besar.

Baik dalam club atau regu sepak bola yang membawa keuntungan masing– masing oleh auditorium taruhan club. Akibat betul saja tentang itu memberi pengaruh terhadap kualitas regu dalam memenangkan setiap perlombaan yang hendak dialami.


Mari Silahkan Gabung Dan Mainkan Slot Online Dengan Deposit Pulsa Disini

Mainkan Slot Online Dengan Deposit Pulsa 100% Tanpa Potongan

Juliany said...

Trik Kemenangan Judi Bola Langsung . Berjudi bet bola dengan online sangatlah menguntungkan untuk kami pecintanya. Di Mana dalam memasang taruhan judi betting bola yg dilakukan dengan online itu minat selalu bisa terasa alat buat memilih keunggulan darinya. Dan pesatnya kecepatan semenjak permainan uang bola itu pas senantiasa saja semakin atas peluang keuntungan kita.

Tapi bagimanapun kelebihan ini semata-mata satu kesempatan siapapun yang terdapat didepan kita. Andaikata kita tanpa dengan mekanisme untuk mengambilnya piawai gak ingin mendapatkan keuntungan tersebut.

Juliany said...

Situs Judi Casino Online Terpercaya sampai Pemilihan agen judi bebas amat melelahkan buat mereka yg sebetulnya belum jelas dari mana semestinya validasi pencarian dilakukan. Kala buat yg sebetulnya pernah benar-benar menyadari dan paham, para tentu akan bisa terlalu sederhana sekali mendapatkan semuanya. Apalagi bahwa anda telah paham, kalian bisa bebas web judi casino otomatis terpercaya dengan tatacara yg terlampau simple sekali.

Unknown said...

Star Episodes

Watch Hindi channels star plus, Colors tv, Sony Tv, ZEe bangla, Star Jalsa, hotstar, zee5, voot, sony liv, sun nxt dramas full episodes watch online hd quality videos. Watch free online hindi language premium web series of zee 5, hotstar, voot, ALT Balaji, amazon prime or netflix

Juliany said...

Slot scr888 tanpa deposit 2020 langsung main ini sengaja kami sediakan agar anda bisa melihat-lihat game mesin dingdong yang telah disediakan khusus kalian semua yg ingin mendapatkan penghasilan lebih secara instan.

joker123 said...

aduq online
agen aduq
situs aduq
daftar aduq
aduq terpercaya
aduq terbaik
situs IDNPlay
aduq online
aduq terbaik
aduq terpercaya

Unknown said...

It’s designed to fulfill small enterprise and large business requirements.Go to, Microsoft 365 Setup website MS 365 for Business offers four plans including Basic, Standard, Premium, and Apps for Business. |
www.microsoft365/setup |

Unknown said...

Ankahee Dastaan

Watch Ankahee Dastaan full episodes. Ankahee Dastaan is an Indian TV Drama Serial that is brodcasted on on daily basis. We try our best to make available all episodes and promos of Drama Serial Ankahee Dastaan as soon as they are streaamed over .

casinositewiki 카지노사이트 said...

It is perfect time to make some plans for the future and it is time to be happy. I’ve read this post and if I could I desire to suggest you some interesting things or suggestions. Perhaps you could write next articles referring to this article. I want to read more things about it! Feel free to visit my website; 먹튀검증

casinositewiki 카지노사이트 said...

Easily, the article is actually the best topic on this registry related issue. I fit in with your conclusions and will eagerly look forward to your next updates Feel free to visit my website; 바카라사이트

casinositewiki 카지노사이트 said...

Excellent Post as always and you have a great post and i like it thank you for sharing.Feel free to visit my website; 바카라사이트

12122 said...


AsianEmbed Kshow Online said...

Asian Embed This site is a free entertainment platform where you can stream the latest and past Asian shows such as Korean,
Taiwanese and Japanese dramas and movies with English subtitles and in high quality said...

So good indeed! Glad to have found your page!! This is such great work!! Interesting to read for sure!! 포커게임

12122 said...


Cooking By Tips said...


Cooking By Tips said...


My Assignment Help Online said...

Thank you for share this post. your blog is amazing.

Thomya_Patlacha. said...

Thanks for the detailed article on this topic. I would like to see more such awesome articles from you. Also you can get the new and best features of FMWhatsapp which are coming in 2022- FMWhatsapp APK

Arnold DK said...

This blog is very informative. I read and learn many important things about this topic. I am impressed with this website. og whatsapp

Alprazolam Tablets UK Next Day Delivery said...

Thanks for sharing the post! We are one of the top medicine stores and healthcare service providers in the UK. Also, our team focuses on developing the lifestyle of individuals by providing them treatment for sleeplessness, anxiety issues, sexual problems, etc. Sildamax, an online pharmacy, offers the top healthcare services, and we aim to be the best online pharmacy.

technologyforall said...

Best Online Data Science Course training with job assistance and internship opportunities .At ‘Technology For All’, we believe in sharing knowledge. Our focus is not just on teaching but involving you in each aspect of learning. With us, you get an opportunity to innovate on projects, work on case studies, gain quality industry knowledge, professional perspective and become job-ready.

Near Learn said...

Python:- The Python language is an interpretive, high-level language. With a substantial amount of indentation, it emphasizes code readability. Near Learn offers courses in Machine Learning, Data Science, Artificial Intelligence, and React Native. The certifications from Near learn are IABAC accredited which is a global certification. To learn more, visit:-Python Training in bangalore

Unknown said...

Getting the email follow-up game right is extremely important for those in sales. One has to be persistent and always on the go. Follow up email

Unknown said...

It's the same topic , but I was quite surprised to see the opinions I didn't think of. My blog also has articles on these topics, so I look forward to your visit. 토토사이트

Data Science Course in Bhilai - 360DigiTMG said...

Stupendous blog huge applause to the blogger and hoping you to come up with such an extraordinary content in future. Surely, this post will inspire many aspirants who are very keen in gaining the knowledge. Expecting many more contents with lot more curiosity further.

Data Science Certification in Bhilai

Near Learn said...

Python:- The Python language is an interpretive, high-level language. With a substantial amount of indentation, it emphasizes code readability. Near Learn offers courses in Machine Learning, Data Science, Artificial Intelligence, and React Native. The certifications from Near learn are IABAC accredited which is a global certification. To learn more, visit:- . Python institute in bangalore

Unknown said...

Yeh Rishta Kya Kehlata Hai All Episodes

Watch Star plus Yeh Rishta Kya Kehlata Hai all episodes. Star plus YRKKH watch online. Yeh Rishta Kya Kehlata Hai is an Indian TV that is broadcasted on Star plus on daily basis. We try our best to make available all episodes and promos of Yeh Rishta Kya Kehlata Hai as soon as they are streamed over Star plus.

AA said...

A Sap Consultant Guide 2022 : Career, Salary, Jobs, Scope, Skills, Future
- Sap Consultant career

Slot Bonus New Member 100 said...

REPUBLIKSLOT merupakan situs slot online terbaik 2022 yang menyediakan ribuan mesin slot gacor mudah menang jackpot terbesar dan Slot Pulsa di Indonesia melalui link alternatif resmi di bawah:

AA said...

The Perfect Homestay in Mukteshwar
- homestay in mukteshwar

Joker123 Gacor said... adalah situs daftar slot via shopeepay dari toko online terkenal shopee minimal 10 rb saja

slot bca
slot bri
slot bni
slot ovo
slot cimb
slot mandiri

Unknown said...

DEWITOGEL pusat informasi situs judi online terpercaya dan rekomendasi situs judi slot
mudah menang seperti DEWITOGEL. Dengan minimal
slot deposit dana 10000 sudah bisa mendapatkan bocoran informasi slot gacor online terbaik setiap harinya.

Togel Taiwan
Slot Bet 100 Agen Pragmatic Play Terpercaya
Bo Toto Macau
Toto Macau Bet 100 Perak

Slot Hoki Gacor Indonesia said...

REPUBLIKSLOT merupakan situs slot online 24 jam terbaik 2022 yang menyediakan ribuan mesin slot pulsa gacor mudah menang jackpot terbesar dan judi fafaslot 88 terpercaya di Indonesia melalui link alternatif resmi PASTI BAYAR. Dapatkan berbagai kemudahan bermain slot online24jam tanpa potongan hanya 20rb dan nikmati juga bonus new member 100% di awal to kecil segera.

werwer said...

Windows 10 Activator ultimate is regarded as a course that finder for mak and retail key in several servers for Windows 10 all sorts of publications. The Keys are robotically up-to-date day to day. This software is one of the ideal for Windows 10 Activator with every day mak and retail key updates

Kencurrr said...

Macau 5D

Diazepam Tablets said...

Diazepam Tablets Online Pharmacy convey medicines at reasonable & affordable costs. It is one of the eminent Pharmacies offering quick delivery of medicine.

Mahe Blogs said...

SLA Jobs is offering the best Software Testing Training in Chennai to provide in-depth understanding and hands-on exposure for testing and verifying software products or applications that are developed by top companies. Gain expertise in manual testing and automation testing through popular tools like Selenium in our Software Testing Training Institute in Chennai.

Software Testing Training in Chennai

desitv said...

Better Call Saul Season 6 (2022) is an english Crime, Drama web series directed by Gordon Smith, Ann Cherkis. It has 7 total episodes Better Call Saul Season 6

desitv said...

Watch Imlie 1st June 2022 Video Full Episode 487 Online Apne Tv, Star Plus Drama Imlie 1st June 2022 Latest New Episode on Dailymotion Imlie

Data Science said...

Superb Information, I really appreciated with it, This is fine to read and valuable pro potential, I really bookmark it, pro broaden read.
Appreciation pro sharing. I like it.

uday said...

Nice thanks for sharing informative post like this keep posting if like more details visit my website link

Anonymous said...

Nice Blog ! Thank you for sharing this useful information.
ERP for Small Business

johnstepan said...

Thank you for sharing this useful article. I really like the way you write.
Abogado Divorcios Stafford VA
Abogado De Trafico En Virginia

«Oldest ‹Older   201 – 287 of 287   Newer› Newest»