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Hello and welcome to this video.

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When you are programming there will come a time when you want your program to be more interactive and

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capture some information from users in Python.

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You can achieve this by using a special function called the input function.

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This function prompts the user for some information.

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What you can then do is capture that information that the user enters and store that information into

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a variable and then you can interact with the information the way you want.

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I'm going to create a new python file to show you some examples of how to capture your information from

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users.

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So I'm just going to right click on my main project directory right click and go and you click on python

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file.

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I'm just going to call these inputs and click OK.

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So it's now created the new file called input dot P Y so to capture information from a user you need

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to use the input function and what you can do.

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You can store the information that you do Capshaw into a variable.

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So let's say I create a variable called person and I'm going to set it to increase to an input function.

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Now inside that input function I'm just going to add some text that will prompt the user what to do.

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I just say enter your name.

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So depending on what type of information you're trying to get from the user you can have as many input

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functions as required.

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For example you can have an input function that will prompt users for their age and other kinds of information

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and then store that information into a variable.

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So once we have captured that information we may want to output that on the screen and we can do that

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using the print function.

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So inside the print function we can just add a text.

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So what this would do basically once the user gets the prompt to enter the name and then this will print

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Hello plus whatever name they have entered.

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So I'm just going to save my file and then I'll play this file slightly complete I you can see here

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is now giving me the prompt to enter some information.

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So I'm gonna send out some information I'm just going to see blue line and when I press enter it's going

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to say hello.

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Blue line because blue line is the value I have supplied for this variable called person.

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So I press enter.

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I can see here it says hello.

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Blue Line.

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So this is just a simple way to capture a user's input so you can have different types of input depending

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on the type of data or information you want to get from the user.

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You can also capture more Numeric Input from a user.

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So let's create some variables.

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Well if I created variable X and I'll give it a a value which will be close to an input function.

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So I say input because I want to capture the information from the user.

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So inside the input function I'm just going to enter a text that says enter and then how create another

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variable I'll make this on y and I'll set it again to an input because I want to capture some information

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from the user.

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Again I I'll say and.

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Okay.

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And then I can have another variable cause Z and I'll set these two equals two X plus why.

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Okay.

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And then I can do a print statement.

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Print Z.

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So when I play this file I want you to watch the outcome carefully.

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It's not gonna be the results you expect.

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So you would expect an addition to take place.

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But what's going to happen is you're going to get a concatenation concatenation is when you add two

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strings together.

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So let me click on the play button you can see says enter your name.

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It's referring to this first print statement on line two.

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So I just say and press enter.

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All right.

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So says hello.

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Blue Line.

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Now he's gone on to this print statement here on line number eight.

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All right so he's basically responding to this.

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Says enter a number.

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So and number eight a press Enter is asking me to enter another number.

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Don't forget I've got two input functions or I in turn number seven.

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Now if I press enter you would expect the result to be 15 boys not he's gonna say 87 XY.

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It says 87.

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And the reason it has said 87 is because it has added the values I have provided.

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Together is treated them as a string.

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So he thinks they are text and just added them together.

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When you add strings together is known as concatenation.

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So what we need to do here we need to do some casting so that this value that it captures is converted

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in two and a number or an integer.

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But in order to convert the values that has been captured from the user in to a number value an Integer

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i need to do some casting.

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So what I'm going to do here in this variable Z.

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This is where I'm going to do the casting.

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So what I'm going to do I'm going to wrap this round a print statements.

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I'm going to see print and I'm going to wrap that result but I need to include a special function called

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The End.

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This is what will convert the value that I can show from X and I'll do the same here.

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Add this function called INT.

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It will convert whatever value that is being captured from Y as well.

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All right.

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So that will then give us a proper addition.

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So I'm going to modify the code.

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I'm going to comment out.

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Line number eight.

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We will not need that anymore since we have ramped the valley of the variable Z inside this print function.

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I'm also going to comment out.

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Line 1 on line two.

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I don't really want that line.

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Those line of code to run.

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So I just want to keep them simple so we can focus on this area.

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So what we will not get.

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Now we'll get a prompt to enter a number we enter a number we enter a second number and then in this

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verbose Z here to print the number that was entered for X but then converted because when it's entered

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the input level it's a string.

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So this end here is going to do some casting by converting the captured number into a whole number is

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converted from string to number.

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It does the same with the Y.

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So let me just save my code and then play the code again so we can play.

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Now you can see here is asking me to enter a number.

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So I say eight and a number eight for example a press Enter says enter another number.

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Say I press for five press Enter now it should give me the correct result which is twelve.

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Okay.

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And the reason is giving me the correct result is because I have done some casting here is in the int

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function it converts the value that was entered for the x variable into a whole number.

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He also converts the value that was entered for the Y variable into a whole number because any value

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entered using just the input function is treated as a string or a text.

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All right.

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So we have to cost by changing the data type of what was entered.

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That's why we were able to get the correct result.

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Of twelve.

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So that's basically how you can capture your input or information from a user is very useful.

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So depending on what type of information you want your program to capture you can use that to do different

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things in your program in order to create some kind of interaction with the user.

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So that's basically how to capture user information by using the input function.

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Thank you for watching and bye for now.