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And let's do some exercises to practice on what

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you have seen in this section, and also combined

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with the last section. So we're going to practice

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mostly on functions here, okay, and you will have

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four different exercises. So the first three

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exercises are actually the same, as for the last

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section, but this time, you are going to use

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functions, okay? So the functionalities that you

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have previously implemented in the Python Shell,

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you are going to write code inside PyCharm. So

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what you can do is you can create a new file for

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each program. So I'm going to show you how to do

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that. Okay, very quickly how you can create a new

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file for each exercise so you can better organize

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your code. So you're still in your project here,

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you can right click New, Python File, okay, and

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just name your file. So for example, test, okay,

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this is a Python file, I press enter, and we have a new

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test.py. So make sure you have the .py extension

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here. So now you have main.py, test.py. Just going

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to write print("Hello from test"), ok, press CTRL S

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or Command S to save the file. And now what you

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can do so you can click on the Run here, and by

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default is going to run the main.py. Okay, as you can

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see here, it's going to run main.py. If you want

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to run test.py, you can click on a Run with dot dot dot,

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and you can choose the file test here.

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And it's going to run test, so you can see, Hello

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from test. And then you can choose here, you can

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toggle between main and test. So if you click on

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main is going to run, the main file, test is going

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to run test file. So you can treat different files

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and you can toggle here. Make sure you add them

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with the Run... here. Alright, and if you

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want to remove a file, simply right click Delete.

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Are you sure? OK. So you can add one file per

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exercise. Okay, so the first exercise you are

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going to ask for the name and age of the user and

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print the info. This actually is what we have done

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to explain the functions here. So this is already

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done. But as an additional practice, you can just

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start with a blank page and rewrite that function,

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okay as the first practice. And then so ask the

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user for two integer numbers, add them and print

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them with the result. So you can create here a

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function to add two numbers and return the value.

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And then you can print the result. And for the

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third one, create a list of four float numbers,

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compute the average and print it, you can create a

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function here that is going to compute the average

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of any list of numbers Okay, so you're going to

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call this function and print the result. So those

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are the three first exercises and then the fourth

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one is a new exercise. You're going to create a

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function to convert from Celsius degrees to

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Fahrenheit degrees, okay. You have the formula

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here. So you have Celsius degrees you need to

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multiply Celsius by 1.8 and add 32 to get

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Fahrenheit degrees. Okay, so for each of those

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exercises, one of the challenge also will be how

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you can name the function okay. Naming the

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function is very important to give a meaningful

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name and then how you are going to organize the

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code to make it work. Alright, so now if you still

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have some trouble understanding some concepts,

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please go back to the previous lessons to watch

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them again. And I will see you in the next video

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for the solution of the exercises.