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Hello and welcome to this video.

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In this video we are going to be creating some variables creating variables in Python is really straightforward

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or you need to do is give the variable in name and then you assign some values for the variable to store.

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I'm going to be using my command prompt to create some variables so I'll be accessing the python interactive

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shell so to do that I just type in Python and press enter.

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If you are on a Mac you need to go to your terminal and type in Python 3 so the first thing you need

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to do when creating a variable is to give the variable a name.

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So give it a name that is descriptive that reflects what type of data of value that the variable stores.

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So let's say I create a variable H and you use equals 2 to assign a value.

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So say I give it an h of for a presenter and that's a variable created.

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If I want to access that variable the value inside that variable all I need to do is call a variable

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by its name and press enter and it will return the value.

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You can also change the value that the variable holds.

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For example I can come here and say H equals to fight and presenter.

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Now if I call that variable a it will no longer store for.

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It will not store five because the value has changed so that the value that a variable stores can vary.

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So let's say I create another variable and I give it a value of say blue line.

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Now if I want to reference name I just say name and it will give me the tex blue line.

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If you notice there are quotes around it.

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If you don't want the quotes you can go to print.

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I can just say print name by wrapping the variable inside the print function to print out the value

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without the quote.

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So let's create a few more or create another one called City and I give it the value of say London I

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will create or another variable.

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So create one called green team and inside this I can store a long piece of string or text so you can

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always store what you like inside your variable value so say hello world and do that.

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So I'll say hello world and say thank you.

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So variables are quite useful so for example any time I want to see something like this I don't need

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to keep typing it out each time I just call the variable by its name.

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For example I can say print inside the print function I just pass in the name of my variable which is

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great team and it will just spit out the value you can see here is just printed out the value of that

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variable.

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So variables are quite useful because you can store a lot inside them and that saves you typing things

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all over and over again.

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So if you have values that you want to use or reference often within your application you can store

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those values inside variables and then just change it as you go along.

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You can also construct a sentence or statement using variables for example I could see print in some

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print function I could construct a simple sentence I could reference a name which is in name of I've

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got a variable code name with a value Blue Line psycho's a name and a comma and then the quote I'll

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say is from

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our end quote and a comma now city.

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Now the name and the city are both variables.

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So I've got a name here with a valid blue line.

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I've gotten a variable here called City with the value of London.

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So what I'm saying here I want this print function to print out the name which is blue line and then

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add this piece of text and then add this variable name.

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So if I press enter you can see is constructor something same blue line is from London.

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So you can see the power of variables.

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You can store any data time.

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You can store numeric related values and you can store string or text reflected values.

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Also variable names can change.

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So you can create a mean variable values can change.

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You can create a variable and then later on reassign the values that the variable holds.

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So that's set for creating variables.

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Thanks for watching.

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Bye for now.