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Python and its uses

What is python?

Python is an interpreted, high-level and general-purpose programming language. Python’s design philosophy emphasizes code readability with its notable use of significant indentation.

What are the uses of Python?

1. GENERAL WEB DEVELOPMENT / BUILDING WEB APPS – Python is one of the simplest programming languages, and we mean that in a good way. “Python, unlike other programming languages, emphasizes code readability, and allows you to use English keywords instead of punctuation…The readable and clean code base will help you to maintain and update the software without putting extra time and effort.”

2. SCIENTIFIC COMPUTING + DATA SCIENCE – Python is also used for scientific research and computing and even has several science-friendly or science-specific libraries including:

  • Astropy for astronomy

  • Biopython for biology and bioinformatics

  • Graph-tool for statistical analysis of graphs

  • Psychopy for neuroscience and experimental psychology.

3. MACHINE LEARNING – Yes, technically, machine learning falls under data science. Using Python for machine learning is pretty cool, so it felt like it warranted an additional line item. Machine learning includes things like speech recognition, financial services, even the recommendations Netflix serves up every time you log in that make you think, “How do they know?!”

4. STARTUPS – This seems like an odd item to include on the list, but it’s true: Startups, and especially tech startups, love Python because it’s easy to use and scalable. And I mean scalable. Take, for example, Dropbox.

5. FINTECH + THE FINANCIAL INDUSTRY – In 2016, HackerRank released a survey of various industries, revealing which programming languages they were prioritizing when hiri.

Phthon-django Training and Placements by DOCC kolkata. Call 9433526196, Visit www.docckolkata.com

Written by U Roy, DOCC kolkata

Cloud Computing and it’s benefits

What is cloud computing?

Cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale.

Cloud computing is very important as it allows people access to the same kinds of applications through the internet. … This means the device accessing the cloud doesn’t need to work as hard. By hosting software, platforms, and databases remotely, the cloud servers free up the memory and computing power of individual computers.

Benefits of cloud computing :

  • Reduced IT costs – Moving to cloud computing may reduce the cost of managing and maintaining your IT systems. Rather than purchasing expensive systems and equipment for your business, you can reduce your costs by using the resources of your cloud computing service provider.

  • Scalability – Your business can scale up or scale down your operation and storage needs quickly to suit your situation, allowing flexibility as your needs change. Rather than purchasing and installing expensive upgrades yourself, your cloud computer service provider can handle this for you. Using the cloud frees up your time so you can get on with running your business.

  • Collaboration efficiency – Collaboration in a cloud environment gives your business the ability to communicate and share more easily outside of the traditional methods. If you are working on a project across different locations, you could use cloud computing to give employees, contractors and third parties access to the same files.

  • Flexibility of work practices – Cloud computing allows employees to be more flexible in their work practices. For example, you have the ability to access data from home, on holiday, or via the commute to and from work (providing you have an internet connection)

Cloud Computing, Java Training by DOCC kolkata. Visit www.docckolkata.com / Call 9433526196

Written by U Roy, DOCC kolkata

 

Python-django,AI, Machine learning Training

 

Python :

1.Installing Python On a PC

2.Numbers , Operator and Comments

3.Variables

4.Strings , Boolean

5.Conditional flow statement

6.Looping

7.Functions

8.List,Dictionary,Tuples,Set

9.Lamdas and Build in function

10.Error Handling

11.Modules

12.Object Oriented python

12.Iterator and Generators

13.Decoratore

14.Http

15.File IO

16.Python + SQL

17.Regular Expression

 

Poject I (Using above topics)

 

Django :

  1. Install Django
  2. Apps,URLs and Tempaltes
  3. Model
  4. View Method
  5. Authentication
  6. Database
  7. Rest API
  8. Deployment

 

Project II (Using Django)

HTML and CSS:

  1. Overview of HTML 5
  2. Overview of CSS3

Will PHP exist in 2021?

You have to read it twice, it’s like will Life exist in 2020? Well, No one can tell you this.

But yes, you can look at the exisiting things as many websites, softwares are built using PHP only. It will totally depend upon the enhancements being made in the future.

As there are many other languages like Java, Python which is taking an edge over PHP nowadays, but we can never say that PHP is less.

As many people and organisations still work on PHP because they find this language as a proper fit for their projects.

Even C++ was developed back in 80s, but still it’s one of the strongest languages. So, one can never answer this question. If you are having interest in PHP and want to learn its basics, then go with it without a second thought.

Remember, Language is a secondary thing, primary are your Logics.

 

On line and Off line PHP,WebDesign,Java,Wordpress,CI, Laravel, Javascript, React JS, Vue JS,Angular JS,Node JS, Python, Django, Machine learning, AI, SEO, Mobile Android Apps Training-Placements and Outsourcing by DOCC kolkata.Call 9433526196.Visit www.docckolkata.com

 

 

 

JavaScript knowledge to start learning PHP?

Do you have to know basic JavaScript to start learning PHP?

 

Both PHP and JavaScript are widely used together: PHP for serving the application, and JavaScript for interacting with the user. (As an alternative to PHP, JavaScript can also be used in servers with the help of NodeJs, but that may not be what you are looking for right now).

It doesn’t matter which one you learn first. However, since JavaScript is part of the HTML/CSS/JavaScript triangle, it makes sense to learn basic JavaScript before getting into PHP.

Then, experiment creating the same exercise with both languages to see how each one behaves.

Find out the reason why you need to learn PHP (based on your question), and why JavaScript is necessary when you use PHP for web development.

 

Do not pay attention when people tell you not to learn PHP.

PHP continues to be an important language to learn for the next decade and there are plenty of jobs available if you’re looking for a career.

Reason #1: The old PHP is gone. The new PHP is PHP7.

Reason #2: Laravel is the hottest framework in the planet. Laravel runs on PHP7 and you can use JavaScript for the front end via Vuejs (or even ReactJS). Both VueJS and React are the darlings of JavaScript right now (along with Angular but that uses TypeScript).

Reason #3: Drupal 8 and WordPress also use PHP7 and there are plenty of jobs out there for developers in this category.

Don’t get emotional with language adoption because it will consume your energies unnecessarily. Both JavaScript and PHP have their places in this industry. Figure that part out and move on.

Training by DOCC kolkata, lake gardens. Visit www.docckolkata.com, Call 9433526196

JavaScript frameworks for quick software development:  

 

The popularity of Java script grows every day. It’s definitely the best scripting language which allows creating exciting  interfaces and simplifies the development of web applications, being a perfect open source app development software and making the sites interactive and convenient to use.

The Javascript web development frameworks are issued and updated daily and that’s why it is difficult at times to go with the tides and understand which famework is most suitable and best matching for the project.

Before choosing a web app framework to apply the requirement  and needs of the project to be taken into consideration.

The advantages of the frameworks

Javascript  framework is a number of features and functions written in Javascript language and ready  for the usage of the developers. These features simplify the interaction between the app and server and speed up the manipulating of the web page or app elements.

The main advantage of using a web application development  frameworks is the fact that it provides immediate reaction to the user interacting with the site immediately.

The basic content of the traditional sites without frameworks is stored  on the server and any new content , which is necessary to be upload requires reloading of pages. When frameworks are used , only the necessary blocks of a website are reloaded.

Some of the most advantageous benefits of the frameworks ‘usage:

  • COST: The cost of the app development for websites decreases due to the JavaScript frameworks because they are free and open source code.
  • Development speed: Java Script frameworks have good documentations. Some of the JavaScript frameworks are supported by such giant companies as Google etc. Due to such a lot of information, the speed of development increases.
  • Efficiency: The usage of the pre-created functions and templates allows to carry out the projects more effectively. The developers have to write less code, which results in delivering projects meeting higher standards and more quickly.

Most used and popular frameworks—

JavaScript frameworks have now become one of the most preferred web app development platforms for modern single page apps, social networks, e-commerce products and other software solutions creation.

At present, without using frameworks, the development of modern web products has become almost impossible. There are Some companies are still using classical Java Script software incurring higher development costs. As a consequence of classical JS complexity, lot of frameworks have appeared in the market, but the solid leadership in the software development market belongs to these three: Angular, React and Vue.

 

Angular

Angular is a cross-platform framework which keeps to the  MVC architectural pattern and supports a weak link between the display, data and logic of the components( integral parts of the app).  Angular shifts a certain part of server services to the client side and consequently the server workload decreases and the web application becomes lighter.

Due to Typescript the project code becomes clear , convenient for developer’s understanding and contains fewer errors. Angular strong points are remarkable documentations and references.

One of the week points of Angular is the high learning curve for the projects because a JavaScript developer  should know for instance , Type Script to start working with framework. It consequently makes the project  fulfillment  more difficult, especially the work is passed from one team to another. Another drawback of the Angular framework is the frequent release on the new versions. The 8th one already released in June, 2019.

 

React.js

React—is a java script library with open source code for user-interfaces development. For the first  time React was used in 2011in the face book newsfeed, then in 2012 in Instagram.

React is still being developed and supported by  Face book and Instagram. It can be used not only for browser-based web apps but also for mobile apps. The aim of the framework is to provide high speed , simplicity and operability of the apps on various platforms.

However, React is not a full-fledged Framework, but  a function library. To use it as a Framework, other third party libraries should be attached. React strengths are speed, lightweightness, cross-platform format  and big community.

The weakness is the necessity to use third party libraries for complete work which complicates the development process. Another drawback of the library is that it does not follow the standards in HTML or CSS CODE AS Angular and Vue.js do.;

 

Vue.js

Vue– is a progressive framework for user interfaces creation. Vue was made fit for gradual implementation  unlike Angular or React. It means progressive framework  gradually starting from certain pages, which makes the development much easier. The Vue.js creator is Even and You and the framework is widely used in Chinese companies. Not so long ago the repository management  GitLab also switched to Veu.js.

Vue deals with presentations layer tasks in the first turn, it simplifies the integration with other libraries and existing projects. Vue coopted the best features of Angular and React- the speed and lightweightness and the possibility to support such technologies as Type Script and JSX. However along with this the Vue frame remained true to the principles of CSS and HTML code writing. It facilitates quick web application development and makes the processes of project development and support easier.

Thus , for any developer who knows the basics of the front-end technologies will not be a problem to develop or support the projects on Vue.

At present, a small community can be called a weak point of the Frame work as no big corporations support it.  Nevertheless, popularity of the framework grows every year.

 

What to choose?

Every project is unique in its own way and  before starting the project detailed analysis and evaluation is required.

However, there are certain key aspects, which help to choose a particular technology for development:

Speed and simplicity of project development and support.

The speed of the development depends on the technologies, already used in the projects. In case Type Script or JSC have already been applied then  Angular or React correspondingly needed. But in case the project from scratch, it’s better to choose Vue .js due to its compliance with standards.

Trends:

All the frameworks are popular and will keep the leadership in the modern development marketin the coming years. It will not be a mistake to choose any of them . However Vue is vigoursly gaining popularity, followed by React.

 

Mobility and Stability:

Supposing  one framework is chosen and then decided to switch to another one and Vue. js is the best choice in this case because re-writing the projects on Angular or React will mean that the developers will most likely need to switch Type Script or JSX code to classical Java Script and HTML correspondingly.

One more important aspect to consider is the frequency of Frameworks update. Angular has serious updates issued every 06 months, React approximately once in a year. Vue is more stable in this sese and has serious updates once in several  years.

Java-Script-Angular-Node-React-Vue JS-Python-Django Training and placements by DOCC Kolkata.

Visit www.docckolkata.com / Call 9433526196

 

 

 


 

 

 

 

Python why do we need to learn in 2019?

Here are the top reasons to learn Python, if you are planning to start your career in Python.

Python is simple and Easy to learn-

It is very easy to code. Compared to other popular languages like Java and C++, it is easier to code in Python. It is programmer-friendly and t is dynamically-typed, it mandates indentation. This aids readability.

Python in Artificial Intelligence and Machine Learning-

Artificial Intelligence is the huge development in the tech world. It is the intelligence displayed by machines. this is the contrast to the natural intelligence displayed by humans & other animals. Different frameworks, libraries, and tools dedicated to let AI replace human efforts. AI gives us speech recognition systems, autonomous cars, and so on.

Big Data-

It has helped Big Data grow, its libraries allow us to analyze large amount of data across clusters.

Networking-

It also let us configure routers & switches, and let us perform other network automation tasks cost effectively.

Python in Web Development-

It has an array of frameworks for developing websites. Several frameworks for Python. Many of these were meant for web development. These were Django, Pylons, web2py, and Flask.Many websites such as bit bucket, Pinterest Instagram, are build on these frameworks only.

Data Science

This is the leading language of many data scientist. there are some libraries with Python that are used for data science journey. The important libraries that you mustn’t forgot if you want to go anywhere for Python with data science.

 

Community-

It has a large community which wants to see it grow continuously. A large community also means availability of a large no. of libraries, modules and packages to help you with the project.

 

Career Opportunities-

It opens a lot of doors . Python also finds use in cyber security. This is why Python is worth learning.

Startups and Corporates- Python for Both-

It is literally everywhere, be it a startup or a unicorn. Its perfect blend of uniqueness and flexibility make it a suitable choice for any project.t gets the best of both worlds. Giants like Disney, Google, and NASA are always on the lookout for talented Python professionals.

Python-Mongo DB, Django, Machine learning Training by DOCC Kolkata. Call 9433526196

 

 

 

 

 

 

 

 

Ethical Hacking and what it is?

Ethical Hacking and what it is?

Ethical hacking , often performed by white hats or skilled computer experts, is the use of programming skills to determine vulnerabilities in computer systems. While the non-ethical hackeror black hat exploits these vulnerabilities for mischief, personal gain or other reasons, the ethical hacker evaluates them, points them out, and may suggest changes to systems that make them less likely to be penetrated by black hats. White hats can work in a variety of ways. Many companies utilize ethical hacking services from consultants or full-time employees to keep their systems and information as secure as possible.
The work of ethical hacking is still considered hacking because it uses knowledge of computer systems in an attempt to in some way penetrate them or crash them. This work is ethical because it is performed to increase the safety of the computer systems. It’s reasoned that if a white hat can somehow break the security protocols of a system, so can a black hat. Thus, the goal of ethical hacking is to determine how to break in or create mischief with the present programs running, but only at the request of the company that owns the system and specifically to prevent others from attacking it.
People enter the field of ethical hacking in a variety of ways. Many people are very computer savvy and many, but not all, have an educational background in computer science. In some instances, the white hat has gained his or her experience by first being a black hat.
If black hat hacking was at a sufficiently criminal level, the black hat turned white hat may have served jail time before resuming a career in a more productive and positive way as an ethical hacker. The computer world is peopled with former black hats, who now hold ethical hacking jobs. Conversely, some white hats, such as Steve Wozniak, never committed any illegal acts, but simply possess the know-how and skills to analyze problems with any computer system.
With increasing use of the Internet and concerns about its security, especially when it comes to things like consumer information or private medical details, there is considerable need for computer experts to work in ethical hacking. Even sites owned by organizations like the US government have been hacked in the past, and concern about information theft remains incredibly high. Designing impenetrable systems or identifying the current weaknesses of a system are vital parts of keeping the Internet safe and information private, and even with the present legion of ethical hackers that perform this work, there is still more work to do.
Those with interest in the field of ethical hacking often acquire a lot of their skills on their own, and many have particular talent with and affinity for computers. Some knowledge can also be acquired through formal education in computer programmingThis work requires creativity, and the ethical hacker must be able to think outside of the box, coming up with as many possible ways as he or she can derive, a system might be encroached upon by black hats.
For Ethical Hacking Training——-DOCC kolkata, Call 9433526196

 

Angular –the framework of Java script

Angular is a JavaScript-based open-source front-end web application framework . AngularJS is a toolset for building the framework most suited to your application development. AngularJS was originally developed in 2009 by Miško Hevery as the software behind an online JSON storage service, that would have been priced by the megabyte, for easy-to-make applications for the enterprise. This venture was located at the web domain “GetAngular.com”  and had a few subscribers, before the two decided to abandon the business idea and release Angular as an open-source library. It is fully extensible and works well with other libraries. Every feature can be modified or replaced to suit your unique development workflow and feature needs. HTML is great for declaring static documents, but it falters when we try to use it for declaring dynamic views in web-applications. AngularJS lets you extend HTML vocabulary for your application. The resulting environment is extraordinarily expressive, readable, and quick to develop. Angular is a structural framework for dynamic web apps. With AngularJS, designers can use HTML as the template language and it allows for the extension of HTML’s syntax to convey the application’s components effortlessly. Angular makes much of the code you would otherwise have to write completely redundant.

Some reasons why developers should know “Angular ”:

Angular  supports single page applications. Angular provides all of the necessary infrastructure from routing (being able to take a URL and map it to dynamically loaded pages), templates, to journaling (deep linking and allowing users to use the built-in browser controls to navigate even though the pages are not refreshing).

Angular  helps developers Manage Stage. It’s the “illusion” of state that was perpetuated by ASP.NET that confuses developers when they shift to MVC. I once read on a rather popular forum a self-proclaimed architect declare that MVC was an inferior approach to web design because he had to “build his own state management.”

Angular  gives developers control. Angular enables a new scenario known as a “directive” that allows to create new HTML elements and attributes. In my emulator, a directive to create two new tags: a “console” tag that writes the console messages and a “display” tag that uses SVG to render the pixels for the emulator (OK, by this time if you’ve checked it out I realize it’s more like a simulator) is used. This gives developers their controls – and more importantly, control over the controls.

Angular  enables a Design- Development workflow. The designer can add markup without completely breaking an application because it depends on a certain id or structure to locate an element and perform tasks. Instead, rearranging portions of code is as easy as moving elements around and the corresponding code that does the binding and filtering moves with it. Although I haven’t yet seen a savvy environment where the developers share a “design contract” with the UI/UX team.

Angular  handles dependencies. Dependency injection is something Angular does quite well. Single Page Applications use dynamic loading to present a very “native application” feel from a web-based app.

Contact DOCC Kolkata for details about Angular JS Training: 94335-26196.

 

Laravel the best PHP Framework

Why Laravel Is The Best PHP Framework In 2018?

To develop a web application available a right PHP development framework for the business can be a very difficult task because there are so many frameworks are there. We have worked and tested other PHP development frameworks as well. However, we needed some additional features and capabilities.  Laravel is the best PHP framework in 2018.

Why Laravel is used by many industries worldwide?

 

The major technical advantages which make Laravel the best out of all.

 

Reasons why Laravel is the best PHP framework:

 

 

1) Authorization Technique: PHP framework:

Laravel makes implementation of authentication techniques very simple. Almost everything is configured extraordinarily. Laravel also provides a simple way to organize authorization logic and control access to resources.

 

 2) Object-Oriented Libraries:

 

One of the top reasons which make Laravel the best PHP framework is it has Object Oriented libraries and many other pre-installed ones.

One of the pre-installed libraries is the Authentication library. Although it is easy to implement, it has many advanced features, such as checking active users, Bcrypt hashing,  password reset, CSRF (Cross-site Request Forgery) protection, and encryption. PHP framework:

 

 3) Artisan:

 

Laravel offers a build in tool named as Artisan. A developer has to usually interact with the Laravel framework using a command line that creates and handles the Laravel project environment. Laravel provides a built-in tool for command-line called Artisan. This tool allows us to perform the majority of those repetitive and tedious programming tasks that most of the developers avoid performing manually.

 

 4) MVC Support:

 

Another reason which makes Laravel the best PHP framework is it supports MVC Architecture like Symfony, ensuring clarity between logic and presentation. MVC  helps in improving the performance, allows better documentation, and has multiple built-in functionalities. Here’s how the MVC works for Laravel.

 

 5) Security:

 

While developing an application everyone has to use some or the other ways too make the application secure. Laravel takes care of the security within its framework. It uses salted and hashed password, which means Laravel that the password would never save as the plain text in database. It uses Bcrypt hashing algorithm for generating an encrypted representation of a password. Laravel uses prepared SQL statements which make injection attacks unimaginable.

 

 6) Database Migration:

 

One pain point for developers is to keep database in sync between development machines. With Laravel database migrations, it is extremely easy. Enter Migrations. As long as you keep all of the database work in migrations and seeds, you can easily migrate the changes into any other development machine you have. This is yet another reason which makes Laravel the best PHP framework.

 

 7) Great Tutorials (Laracasts):

 

Unlike others (Codeigniter, Yii, CakePHP etc.) Laravel offers Laracasts which features a mix of free and paid video tutorials that show you how to use Laravel. The videos are all made by Jeffery Way, an expert and experienced instructor. He seems to have his finger on the pulse of the essentials and offers clear and concise instructions. The production quality is high, and the lessons are well-thought out and meaningful.

 

 8) Blade Templating Engine:

 

The Blade templating engine of Laravel is very intuitive and helps to work with the typical PHP/HTML spaghetti so much better, that’s it one of the best features of the framework. If you ever have had to chop up an if statement with HTML inside of it, you know exactly what I mean. But with blade, it’s almost effortless. Here’s how it goes:

9) Responsable Interface:

Responsable Interface is a new feature added in the Laravel with the release of Laravel 5.5 in August 2017. It is a class which is used to implement the interface which can be returned by using controller method. After that, the router is going to check for the instance of Responsable when preparing the response from “Illuminate\Routing\Router”.

 

10) Automatic Package Discovery:

 

Previously in the earlier versions of Laravel, it was not easy to install packages. However, in Laravel 5.5 a new feature called Automatic Package Discovery detects the packages automatically which users want to install. Meaning that now users don’t have to setup any aliases or providers from installing new packages in Laravel. Also, Laravel 5.5 allows developers to disable this feature for specific packages.

The amazing features as mentioned above are quite enough to understand that it’s the best PHP framework in 2017. However, you need developers to start your web development project. If you have a long-term project in mind that needs attention from the scratch then dedicated development team are appropriate.

However, if you want to make some minor tweaks or renovate your site you can extend your existing PHP development team with co-developers. Regardless of the needs, you must rely on a technology partner likeValueCoders for all your development needs.

The popularity of Laravel framework is on the rise due to its incredible features. Also, Laravel provides extensive community support as well.

For Laravel 5.6/5.7 Training – Contact DOCC Kolkata,

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