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Hello everybody and welcome back to Python basics tutorials.

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Now we covered functions in the previous video.

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We also cover some of the loops while loops if loops for statements and all of that.

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We covered some of the Python basic such as variables and we also covered some of the most basic programs

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that you can write with python.

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But right now what we want to do is actually show you another thing that is in Python.

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Since python is project these object oriented languages many of the code in for example big parts of

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codes are oriented in these classes.

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Now classes are used in order to keep some of the related things together.

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I'll show you the most simple version of classes so you can actually get a brief understanding of what

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they actually are.

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So let us get right into it.

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So let's open up our part on an interpreter.

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And in order to actually set a class you just use the name class and then the name of the class itself.

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So the name of the class or Let's type your class person you specify the open brackets and then you

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specify two dots in that.

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So after that you need to specify everything in this class.

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So basically most of the classes will have something called self.

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Now it might be a little bit hard for you to understand that but you will need or you won't need but

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it is most likely going to you are most likely going to start the classes with the function called in

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it.

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Basically what this means is it will give all of the objects that are currently corresponded to this

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person class.

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So for now on lets us add the self object and the name object the name basically something is basically

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a name that this person will have and the s object is the object that we are going to refer to in the

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class.

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So let me explain it to a little bit better to you know so you can understand it basically well this

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will do is if I just type yourself not name equals name.

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This will put ourselves that name our name variable in self-taught name variable.

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Now this is something that you will see a lot in these classes.

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This is basically just the syntax for the python so you will need to get used to it.

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If I just type here enter you will see the thread.

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Now we have the class Person identified and we have it right here in Python interpreter in order for

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you to use this class person.

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Basically what you need to do is actually just type here the name or any variable so Person 1 or let's

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call it.

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Oh yeah let's call it Person 1 which is a variable equals and then we need to put the class that we

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want to put this person in.

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So class Person 1 We want to put him or her in the Person class and you can just type your person and

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presenter you will need to specify all the arguments that we specified in our class which in our case

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is only the name.

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So what we need to specify is the name so let's call him John.

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So under the quotes you just type your John and you can press here enter.

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So now we have a person one which is stored under the class person.

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So if you wanted to just type your person one you would see OK this is a memory object.

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So let me just show you it like this so print in order to print the person's name you will need to print

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person 1 which is our John and then dot and then we use the object we created in our class which is

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the name.

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So that is the only thing that we have in that class or print person that name and it will give you

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the John.

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So if you just type your person not print not prison but person to person.

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Now let's add that to the class as well and let's call her Jane.

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So person Jane and print person to not name we would get the name Jane and now both of these variables

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correspond to our correspondent to this class that we created.

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So that's what they mean by keeping the related stuff together with classes.

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Now this is the most simple use of it.

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Basically in this one we only had the variable name which we gave to our objects or basically to our

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variables Person 1 and Person 2.

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You can have multiple things.

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So let's see what we can do but let's close this interpreters since it's better to code our real program

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so Nan or Python 6 by and we start off with the usual things so fast to the python.

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And right now let's create the class which will store our name of a certain person and which will also

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store an email of that person.

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So that will be pretty similar to what we did in the previous thing but we also need to specify an email

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in our class.

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So let's call the class for example

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information.

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Let's call it like that doesn't even matter.

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And what we want to specify right there we want to specify or we actually want to leave it closed so

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don't type anything just type your two dots after the brackets and then presenter and we create the

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simple function as before.

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So the F def in its function we put the self right here and we put the name and email since that is

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what we want to actually have for every person we put in this class what you want to do right after

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that we want to do the same thing that we did before so self not name equals name self self-doubt the

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email equals e-mail.

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This will store both name and email in our class and right now all we have to do is basically just give

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or create a variable which will be corresponded to a person and put it in this class while also obtaining

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the name and the email for that person.

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So let's do that runs through right here.

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So let's call him Jack or let's call him.

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All right we can call him Jack equals and then we want to put him in a class we put that with just specifying

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the name of our class which is information which is probably not that good of a name for this class

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but it doesn't matter currently and we open brackets right here and what we want to do is just specify

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these two things.

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So the first thing would be name as we specified firstly.

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And the second thing would be email.

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So right now we open quotes first of all we specify Jack as a name.

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We put comma right here and then we specify the email so let's say it's Jack at gmail dot com.

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And that would be about it for the specification of the jack for this class.

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So all we have to do right now is if we want to print the information for Jack.

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You can just type your print Jack dot name and print Jack dot email.

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So that's how you can use this.

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Basically it is really simple though everyone seems to understand this.

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The hardest.

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I did too.

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But once you actually get used to this you will be this one really present that much of a problem to

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you.

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Classes can be a little bit tricky sometimes but they're not that hard to learn.

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So you just save this control or to save can enter and the control X to exit.

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Right now let's see page more dollar by six and run it six slips.

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And here we can see that when it prints out the name and email we get the jack and jack at gmail dot

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com.

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So that will be everything for classes.

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Now you can also stack classes one under another so class in a class in a class in a class.

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But that is the more advanced section basically.

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We won't be doing that right now.

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And we also don't need it for our coding or backdoor.

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So there is really no point in doing that.

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You can also use certain parts of the class in a print statement so let me just show you so you can

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see so you can just type your print the user's name is and then you just type here.

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The closed quotes and then plus and then jacked up name so you can do it like that.

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It doesn't really matter.

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So the plus we'll just add the string of this to the string right here that is specified.

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So this will specify the user's name is Jack.

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You can do the same here as well so the user's email is and then plus the string.

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So we say this once again.

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And if we run it you will see the user's name is Jack and the user's email is Jack at gmail dot com.

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So that is probably something else you didn't know which is that you can stack two strings together.

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So this is one string which is just the name which in our case is Jack.

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And this is the second string so it will just add the string to the end of this one and it will print

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out the string as a single string.

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So that's something useful to know.

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So that will be about it for this tutorial and in the next one I will show you how you can actually

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import libraries from the Python and also import your own libraries which is also useful and which is

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something that we will do in order to create our programs.

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Basically it's you would be having to type all of the things from the very beginning if you don't include

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any libraries.

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But luckily we have some of the libraries that other people coded for us that we can use in our own

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programs with just a little bit of effort.

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So that would be about it for this video.

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I hope you enjoyed it and I hope I see you in the next one.

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But.