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[Intro Music]

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Alright guys, I hope that you were

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able to create this tiny Python

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application yourself. And now let

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me do that together with you. I

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have actually created this file

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before, but I have removed it

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just, and now let me recreate it

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from scratch. Let me go to Visual

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Studio Code, and here along with

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hello-world.py file in the

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same 'python' folder, I'll create a

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new file, 'calendar-app.py'. Let

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me close this 'hello-world' file. And

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here, let me click on 'python' folder,

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and create a new file called

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'calendar-app.py'. Great, let's

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first import 'calendar' module. It

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is built into the python module.

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Let me type 'import calendar'. And

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next let me print text to the

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terminal, and the text will be

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'Welcome to the calendar

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application!'. Let me copy it

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from here to save time, and let me

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use here single quotes like this.

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And afterwards, we need to get the

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input from the user, namely year

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number and month number. For that

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we could use the input command

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'input', and here will be, let me

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switch to terminal, and copy this

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text from here. So, 'Please enter any

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year:'. Afterwards, in order to reuse

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number that was entered by user, we

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need to assign it to some variable.

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And first let's parse it using

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'int' like so. And let's create a new

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variable, let's say 'year', and assign

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this result to that variable. In the

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same way, we need to get the month

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number and assign it also to the

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variable. Let's use 'month' variable,

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and here will be 'int', and here will

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be 'input', and let's paste here,

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input I will copy it from here,

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like so, paste here. And now we

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have two variables that will hold

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the year number and month number.

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And afterwards using this year and

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month, we need to call specific

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method of the calendar and print

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the result of that method to the

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terminal in order to see this month

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view. Let's do that. Let's use the

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print command, 'print', and here

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inside let's call a method called

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'month' of the 'calendar'. 'calendar.

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month', and here it gets two

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parameters 'year' and 'month'.

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Actually, we have reused here those

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two variables. That's actually it, and

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here after this line, we will

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get this output. And finally, let's

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print this line to the terminal.

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Let me copy it from here and use

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one more 'print', and here will be

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'Have a nice day!'. That's actually

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all for this tiny application.

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Let's save the file, go to

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terminal, and let me clear it, and

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run this application with the same

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command as I have used in the

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challenge task. Again, we run

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specific container in interactive

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mode with '-i' and '-t'

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options. Next comes volume mapping.

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We map local folder, 'python'

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folder with two files into 'app'

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folder inside of the container, and

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also we specify that we want to use

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that folder as working directory.

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If you do so you don't need to

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append here prefix 'app' before

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specifying the file name. And next

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we use python image and override

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default command using this part.

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And we simply run 'calendar-

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app.py' file using Python3

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interpreter. Let's press Enter.

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'Welcome to the Calendar application!

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Please enter any year:', let's say

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3000. 'Please enter any month number:',

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12, December; and I get this result

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in the terminal. That's how you're

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able to create this small

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application using Python. I hope

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that you enjoyed it. And actually

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that's all for this lecture. And

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that's all for Python part. If you

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want to create more complicated

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applications in Python, you could

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do that on your own. But the main

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goal of those several lectures was

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to show you how you're able to

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launch Python applications using

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python containers. I will see you

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next, and next we will try to create

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Node.js application. See you next. Bye-Bye.

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[no audio]