Django Course

To learn Django one has to go through the following listed below:

• Understanding the basic syntax of the Python i.e. understanding the indentation. One has to learn about its functions, to pass an argument and setting default values if new to python.
• Multiple Python modules are set as per requirement while developing the website. So Django also asks for the understanding of importing external modules.
• One has to be clear with Python Path concepts as these websites are not just some usual ones seen in browsers.
• Numerous data, images are used and are accessed through a complete Python control structure.
• The string is one of the data structures you should be using in every other line of your project code. It is easy to do so in python as Regular Expression (RE) validates the string.
• Prominent data structures like tuple, list, set and dictionary are used.
• Object-oriented concepts(OOP) are applied as the projects start looming. It helps you to bind a similar kind of data (class) and access those data using an object. You can also reuse the lines of codes if the logic is the same.

For developing a Django project, no special tools are necessary, since the source code can be edited with any conventional text editor. its documentation is exemplary and simplified. Initially launched with high-quality docs, it makes Django easy to use. It covers the basics that help the user to work on complex features of a project since it has a python framework.

A URL mapper is used to redirect the HTTP requests to give the appropriate view based on   URLthereby verifying matches the particular patterns of strings or digits that appear in the URL and passes these to the view functions as a data. Further, a view is a request handler function, which receives HTTP requests and returns the HTTP responses. Also, access the data needed to satisfy requests via models and formatting the responses to templates.

Today, Virtualization comes to the rescue. A virtual environment is a tool that helps to keep dependencies required by different projects separated by creating isolated Python virtual environments for them. This is one of the most important tools that most of the Python developers use. The basic plan is to create isolated environments, each running their own versions of packages, not just limited to Django. Virtualenv is the tool in Python which helps in creating new virtual environments for your projects, with their own install directories, isolated from the system directories. The interesting thing to note is that you can create virtual environments with various Python versions, with each virtual environment having its own set of packages. Virtual Environment should be used whenever you work on any Python-based project. Virtualenv is a tool used in python.

Django CMS (Content Management System) is user-friendly with an intuitive drag and drop interface. Its lightweight core makes it easy to integrate with other software and put it to use immediately, while its ease of use makes it the go-to choice for content managers, editors, and website admins. Developers can integrate other existing Django applications rapidly, or build compatible apps that take use of django CMS's editing features. It is built around the needs of multilingual publishing by default, not as an afterthought i.e.,  all websites, pages as well as content can exist in multiple language versions. Django CMS is manageable and compatible, secured, open source databases are used, great extensibility, drag and drop content management and is sustainable. The response time for security issues is within 48 hours. Also, it provides valid markups and front-end and back-end complaints. URLs are configured thoroughly. This also allows customizable designs and layout maintaining secured manuals and documentation.

Pros:

• Fast: The faster the better. This has been designed to help the developers make an application as fast as possible thereby speeding up the development. Thus it becomes an ideal solution for developers having a primary focus on deadlines.
• Fully Loaded: It provides a user with authentication, site maps, content administration and much more. These aspects help in carrying out the web development process completely.
• Secure: Django is well secured. It is ensured that developers don’t commit any mistakes related to security such as SQL injection, cross-site request forgery, clickjacking, and cross-site scripting.
• Scalable and versatile: To meet the heaviest traffic demand, the benefits of Django framework can be seen. Content management, scientific computing platforms, and even big organizations, all these aspects are very efficiently managed by the use of Django.
• Offers Rapid-development: The reason for fast development speed is Django's development in a way such that work can be done on different components parallelly and then can be integrated much more easily.

Cons:

• Lack of convention: In comparison to frameworks like Ruby on Rails (which is a perfect example of the Convention Over Configuration approach), everything has to be explicitly defined, which leads to configuration boilerplate. This slows down the development process. 
• Monolithic: Django does not allow the user to use user defined file structure. It framework has a certain way to define and perform tasks.

Django is considered to be the best for beginners as it provides complete guidelines with generated files upon installation. Django matches the standards and does not exclude the flexibility settings of the framework as it uses a conventional project structure and is more rigid.

Projects for web development is quite easy while using django. Django is robust enough to be used by the largest websites in the world–Instagram, Pinterest, Bitbucket, Disqus but also flexible enough to be a good choice for early-stage startups and prototyping personal projects.it is preferred for its rapid application development. The transfer of request objects in Django framework wherein each of its view gets a parameter.

It is not correct to state django front-end or back-end as it is suitable for both. This completely depends on the field it is supposed to be used on. Django is a full stack web framework, which means it comes with its own ORM (Object-Relational Mapping), templating engine etc and it is built so that the entire application runs as a single service. But if one is using a front-end framework, or a mobile SDK (Software Development Kit) , it is designed so that the frontend is completely decoupled from the backend. Here, the frontend can also be referred to as the client and the back-end as the server side. Virtual framework is handled with a back-end framework usually.

PHP (Hypertext Preprocessor) is a general-purpose server scripting language that is especially suited for web development and can be embedded into HTML. it is a powerful tool that is used for focussing on just web development. Because of its extensively documented time-consuming codes PHP is not quite recommended whereas django is a high-level Python framework that is concise and makes use of indentation enforcements that are quite strict. Django is better than PHP in the following ways:

1. Indented documents: Python helps the users to understand in an organised manner. 
2. Readable programs: as php programs are messy and extremely complex,  Python enforces the programmers to use proper indentation hence making the code easily readable and understandable.
3.  Superior framework: it is incredibly simple to utilize, secure, and is quick and renders itself usable for various applications.
4. Simple and concise syntax
5. Easy availability of debugging tools: Python has an easily available very efficient debugging tool which makes finding errors easier.
6. More versatile than PHP: Python has many libraries that are very strong and powerful as compared to libraries being provided by PHP. These libraries include assistance in all domains including NLP (Natural Language Processing), image processing and many others.

Django requires Python. In recent years, Python 3 is recommended for django. Django 1.11 is the last version to support Python 2.7which ends in 2020.

Since newer versions of Python are often faster, have more features, and are better supported, the latest version of Python 3 is recommended. To avoid loss of any data in Django it uses an older release, with improvements and optimizations in newer Python releases. Third-party applications for use with Django are free to set their own version requirements. Generally, if using code in production, one should be using a stable release. The Django project publishes a full stable release every nine months or so, with bugfix updates in between. These stable releases contain the API(Application Programming Interface) that is covered by our backward compatibility guarantees i.e, if a code is written against stable releases, one shouldn’t have any problems upgrading when the next official version is released.

First of all a basic html program is written and template blocks are created. To do this, we need to include a Template Tag to indicate what can be overridden in the base template - this is done through the use of blocks. to start a block first command is provided with the block name and further, the block is closed using the django template tags. There is no limitation. One can insert as many blocks as he desires. The html file is then opened in django and modified using django templates. Further url is created and opened with the file name saved in django and added.

Among the competitors, it is quite difficult to pick which framework is better for development projects,learning django and laravel is much easier than rails. The offline docs for django make it the easiest. They are responsible for the implementation of database systems, ensuring proper communication between various web services, generating backend functionality, and more. First, a model for a  speaker is initiated. Every speech must have a unique speaker. Now we need to make it possible to work with our model at full through the REST protocol. An API package in the app is thus created with an extension to a file name similar to python i.e., filename.py. The main objects in our REST service. These resources are the ones we’ll appeal to. Every class has a link to the model it represents. If the server launches correctly, you can open the page created. Although time consuming, Django is most commonly preferred for back-end services because of its ability to take out tough task in a simplified manner.

Django and django rest framework is different in terms of usage. 

Django Rest Framework, is a powerful and flexible toolkits, which makes it easier for us to work with REST APIs(Application Programming Interface) in Django. The REST framework requires knowledge of both Python as well as Django. Django REST Framework generates HTML pages to browse and execute all API endpoints. With this feature, users and/or developers can execute GETs and POSTs quickly and easily in their browser. Even if disabled for production use, this is a fantastic feature for testing and demos. Django Rest Framework requires Django as a dependency. Further, Django can do everything that Django Rest Framework can do, you'd just have to write a lot of code to replicate the functionality of Django Rest Framework. Some other features that make REST framework better than Django are:

• Easy Authentication policies
• Supports serializers.
• Customization of functions
• Extensive and flexible documentation than Django

Django REST framework as being very nicely decoupled and flexible, it is usually preferred for carrying complex tasks Django is incapable of.

Django is a popular high-level Python framework that allows users to focus on the new and unique parts of their project. Its popularity is because of the following reasons:

• It is time-tested — It is considered one of the first frameworks to respond to a new vulnerability. Most of the releases of Django focuses on unique concerns and new features. 
• Easy to Use — Django is based upon the Python programming language which has been one of the most popular languages since 2015. Now most developers are learning to code and build applications of the Django framework mainly because it is free and open-source and has an easy implementation.
• Scalability and Reliability — Most cloud developers provide support to run Django applications in an easy and quick manner on cloud platforms. The Django applications can be easily handled by any developer with authorization in a single command. This will lead to a more efficient and reliable development of applications.
• Security — Django generates dynamic web pages and sends information to web browsers using templates from direct viewing on the Internet. This helps in hiding your website’s source code.

We can easily develop and deploy web applications in very little time using the Django framework. It is a very fast and fully loaded framework and it manages user authentication, content administration, and security too. It helps in avoiding SQL injection and cross-site scripting. It is considered to be a versatile Python framework since it can meet high demands and is able to build any kind of application from content management to social networking websites. It is useful to new learners for learning and to experienced people for referencing because of its robust resources and good documentation.

Before beginning, go to the Start menu and right on the Windows Powershell an run it as administrator.

• After opening the Windows PowerShell, install virtualenvwrapper to create isolated environments:

     pip install virtualenvwrapper-win

• Create a virtual environment for a project:

     mkvirtualenv mywebsite

• Activate the environment mywebsite using the following command;

     workon mywebsite

• Install Django using pip command:

     pip install django

• Set the current directory to C drive and create a new directory to store the new project:

    cd \
    mkdir newdir

• Set the new directory as the current directory:

    cd newdir

• Now we need to start the project by replacing the project name with the name of the   project:

    django-admin startproject webdesign

• Set the current directory to the project directory:

    cd webdesign

• Finally, run the command:

    python manage.py runserver

• You can also check if Django is installed or not by running the following command:

    django-admin --version

If you are well aware of the Python programming language and have a basic idea of it, it would take not more than a few weeks or so to tighten your grip in Django. However, choosing the right tutorials is a very important thing. You can start with the Django website. You’ll find some useful documentation to start your journey. Install Django on your system an start working. Another tutorial to build your first Django website without any prior knowledge of Python an Django is the Django girl’s tutorial.

There are hundreds of websites available online to learn Django. Here, I am listing a few  good websites that you can refer to learn Django:

1. Django girls tutorials- This is the best tutorial website to learn Django concepts 
2. Django documentation- this document covers from beginner to advanced level concepts
3. Hacker.io- If you want to learn through videos
4. Django course- If you are interested in taking Django training
5. Sentdex youtube- You can refer all video series from this youtube channel
6. Django tutorials- Refer this video series to learn Django from scratch
7. Django book- This website covers basics to advanced concepts divided into 21 chapters
8. Official document to Django- This Django official document is a good point to start.

Django Rest Framework is a powerful and flexible open-source toolkit in the Microframeworks (backend) category which is used to build Web APIs. All major web development companies that use Rest or Graphql style architectures hire DRF developers. However, most companies don’t hire for just a specific skill like a Rest Framework. They might hire for Python programming skills and if you have experience of a Django Rest Framework, it will stand as an advantage and boost up your chances of getting the job.

The Django framework has a lot of features that will help you grow in your career. Django is the foundation of many websites and services like The New York Times, The Guardian, Pinterest, and Instagram. It allows you to model your domain and code classes easily. It has excellent documentation and offers high scalability and security. It is versatile in nature because of its ability to work with any technology more or less. Django’s framework is completely based on Python which also stands as a crucial reason why people started learning Django in the first place.