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Accept initials order

so in order to get my initials out of these names we can access the first character the first character we can do that with your index index 0 access is the first character of any string or in this case any name so I'm going to access the first character of first name and I do that with square bracket and show me the correct at index 0 basically to calculate a cat in the 0 I'm going to store that value in a variable I'm going to call it variable first initial so first initial is going to store the first character at other place with the character at index 0 in this first name it's going to be stored in first initial I'm going to do the same thing for middle initial the character at index 0 again a middle initial is going to be stored in a variable called middle initial same thing for last name the character K at index 0 of last name is going to be stored in a variable I'm going to create now called last initial so now I have these three variables and I can return it I can now return multiple values return first the first initial comma the middle initial and then come at the last initial and then we're done with this function now let's create another function that's basically going to take these initials and displayed in the way the question is asking us to display it and the question wants us to display it this way separate each of them would like with periods and end it with a period as well you can you know the question you know could have asked something different but it wants us to display it this way so that's create a function for that I mean you can do it with a print function but let's quit let's quit function I function out of it and so that our main function will just be just us calling function functions so I'm going to define a function I'm going to call it display initials because that's all it's going to do display initials and if it's going to display their initials okay it's going to just plead any shells then it needs to initial so this place so I'm going to define as parameters the initials now it doesn't matter before that let me just start specifying the parameters so first name in each step oops he needs a first initial the middle initial and then the last initial so it doesn't matter that these names are the same it doesn't matter right so the scope of this first name variable for example is within the get person names function the scope of this first name parameters within the get initials function the scope of this first initial here is within the display initials function they don't see each other they're considered different variables because they are in different functions they don't see each other at all you like twins right but they are not the same you can you can use the same name because this is only seen in this function this is only visible in this function right and this is only visible in this function it doesn't matter but you can use the same name in this function because you're in different functions are considered different all right so this display initials function we're taking these first initials and then it will display it in a way that we want so I'm going to print out first of all we need to display the first initial so I'm going to print out the first initial I'm going to separate it with a comma print out the middle initial separator the command and print out the last initial so by default when you print values this way when you pass in argument into the print function separating them with a comma when you print when it runs they're going to be displayed with a space separating each of them okay and so let's just leave it like this for now and I'll talk about it you know once we have a value okay so let's save our program let's try to run our program you save it I'm going to save it where we normally save our programs on the desktop Python programming challenges chapter 7 oops chapter 8 this is a new folder so let's just come back here program each other and just create a new folder let's call this chapter 8 in chapter 8 is it going to the first this is called initials I'm going to create a folder for it : issues and then I'm going to say this program also has initials 2 pi initials the pie and save it so nothing's happening right we try to run the program nothing happens nothing's happening because as at this point we've only defined functions right and and we haven't really caught any function right well yes we haven't we call any functions we also need to create a main function right so the main function in most programming languages is basically where your program is where your program starts executing so the good practice always to create a main function where your program actually runs okay so I'm going to do the same thing I'm going to define a main function so we can actually start our program here by calling other functions so the first thing we want to do is to get the person's name right we can call this function get person names this function doesn't accept in any argument because you know there are no parameters defined but it returns the first name the middle name in the last name when it's returning these values we also need to have variables to receive them so I'm also going to have variables ready to receive them I'm going to separate them with commas the variables I'm going to call them first name middle name last name the same name it doesn't matter I'm having these three variables creating here in the main function so I can use the same names right why because they're in the main function the scope of these variables are within the main function and the scope of these for a ball so i within a get present names function they are considered different they don't see each other because they're in different functions so the very first value that's being returned is going to be stored in the very first variable you have here that's receiving this value the second value that's being returned is going to be received by the second variable you have here ok these values are coming respectively they're coming in the same order so you have to have variables to stop to receive these values in that order so we store them here first name middle name and last name okay we have them now we can call the get initials function and we know the get initials function needs the first name the middle name and the last name which we have here so I'm going to pass it to this function pass the first name I'm going to pass the middle name and then pass the last name oops I'm going to pass it here write the get initials function however also returns the first initial the middle initial and the last initial so we need variables to accept those values as well so I'm going to create some here first initial comma middle initial comma and then the last initial user variables I'm creating here again it doesn't matter that these names are the same as these variable names here it doesn't matter the scope of these variables within the get initials function and the scope of these variables are within the main function they're considered different because there are n different functions okay so I don't know if you can see this line over here this line is a guideline for me not to exceed about 79 characters on a line it's a Python standard to not exceed 79 characters on the line and so I want to follow that and so I need to break this line here into two without messing the line up visually I just want to break it up so it doesn't exceed this line so I'm going to break it somewhere around here before you break a line in Python you have to type in a backslash and then hit enter so I've broken it it's not exceed in this line anymore it's the same line of code it's just been split in two lines still works nothing has been you know been broken broken in terms of functionality this is just a visual thing a visual look something I mean some visual you know yeah visual think something I want to like see see right if you want you can separate this out so you can see that it's this is acting as one