All language subtitles for 002 Introduction To Django_en

Hello and welcome to this lecture, and in this lecture, we will have a brief overview about Django.

So what exactly is Django?

So to understand, Django, let's take an example of a social networking website.

So let's say if you want to access a social networking website like Facebook, so what you essentially

do is that you open up your browser and you send a request to the browser, for example, you open up

the browser, you type in some.

You are like Facebook dot com, slash the username.

So let's say, for example, you want to extract the information of a user from a social media website.

If you want to access information of a particular user, you type in Facebook, dot com, slash the

name of that particular user.

So you type this thing in into your browser.

And what your browser does is that the browser takes this.

You are a request and it sends it to the server.

So this right here is let's assume Facebook's server.

So now the job of the server is to take your request.

It's going to read your request.

And depending upon what data you have requested, it's going to look at that data and then it's going

to find a data of user one and it's going to send back a response.

So this response is going to be nothing but the profile of that particular user.

So, for example, let's say if you type in Facebook dot com, slash your username, you will get your

user profile.

So this is the entire process which happens when you request for a particular webpage from a server.

So this entire thing is nothing.

But what happens when you access any kind of website on the Internet?

So what essentially happens is that you type in a you are in your browser and now that browser is actually

going to send that.

You are added to the specific server and request back some data.

Now, the servers are programmed in such a way that they can handle your request and return an appropriate

response.

So this is exactly what happened here.

But now the main question is how exactly does this particular server know which kind of page or what

kind of data it needs to return back to the browser?

So the server actually knows this stuff because the server is actually programmed to handle these client

requests and send back appropriate response.

Now, how exactly can we program these servers?

So that's where Django comes into picture.

So what exactly is Django?

Django is a free and open source web application framework.

So whatever you want to build a Web application, we use Django and Django is nothing but a framework

and a framework is nothing but a collection of multiple components which we can use to build a Web application.

So as I also mentioned, a framework is nothing but a collection of components which allows us to build

sites faster.

So, as I earlier mentioned, we need to program servers and we Django, we can do exactly the same.

So Django is called as a backend framework because Django is used for programming the servers and not

at the front end.

So this is the very specific reason why we call Django as a backend framework, because it is used to

program the backend, that is the servers.

Now, Django also has an automatic admin interface which supports crat.

Now, if you build any kind of a website, so let's say, for example, you're building an e-commerce

website.

So for that very specific site, you also need to build an admin panel as well.

So, for example, there is going to be an admin, which is nothing but the main person who is going

to handle that entire site and that admin should be allowed to create, read, update and delete all

the data from its site.

So for that very purpose, you need to provide an admin panel for a particular website.

But with Django, Django actually has a feature which provides an automatic admin interface so that

you don't have to design it from scratch.

So this is one of the features of Django, which we are going to look into.

So that was a brief introduction about what exactly Django is.

So the only thing which you need to keep in mind for now is that Django is used for programming the

servers so that they can return an appropriate response back to the client.

And Django is nothing but a framework, which is a backend framework and a framework is nothing but

a collection of components.

So a framework is nothing, but it's essentially a bunch of code which we can reuse to build sites faster.

So without wasting any time in the upcoming lecture, we will start building a Web application with

Django.