Python - Command line arguments and user keyboard input

Video Chapters (table of content with clickable links into a specific part of the video)
00:00 Introduction about the video content
00:40 Prerequisites (you should have some programming skills in at least some language)
01:03 Command prompt (showing the Python version, creates new directory, starts Visual Studio Code)
01:38 Creates a file with a "Hello World" program
02:04 Executes the "Hello World" program from the command prompt
02:15 Replaces the implementation with code receiving arguments from the command line and the keyboard
05:14 Executes the updated program
05:20 Moves the source code into "if __name__ == '__main__':"

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Playlists for "Program arguments from command line and keyboard input" for different programming languages:
Playlist for the videos with english voice and english subtitles:
https://www.youtube.com/watch?v=-1THmtId2IY&list=PL4DolL1WgGzauDpEpS005QsE1wcmx_X6-
Playlist for the videos with swedish voice and swedish subtitles:
https://www.youtube.com/watch?v=CGAb5frycls&list=PL_WRJfW_FkqzxxxrL1pjOBAI73JtsPTOm

Python playlist (english):
https://www.youtube.com/watch?v=oDi-5NawrSg&list=PL4DolL1WgGzYVOIa7ovbLjx-24BKlx2gh
Python playlist (swedish):
https://www.youtube.com/watch?v=Hqsb-2on5pw&list=PL_WRJfW_FkqzC24ghcq9wvwFt3th_9oX6

Python
https://www.python.org

Visual Studio Code (cross-platform editor):
https://code.visualstudio.com/download


Python documentation relevant for the video content:

sys.argv (the list with program arguments from the command line)
https://docs.python.org/3.9/library/sys.html#sys.argv


input (Python 3, keyboard input)
https://docs.python.org/3.9/library/functions.html#input

raw_input (Python 2, keyboard input)
https://docs.python.org/2.7/library/functions.html#raw_input

f-strings (string interpolation)
https://www.python.org/dev/peps/pep-0498/

str.format
https://docs.python.org/3/library/stdtypes.htm #str.format

%-formatting
https://docs.python.org/3/library/stdtypes.htm #printf-style-string-formatting

Template strings
https://docs.python.org/3/library/string.html#template-strings

if __name__ == '__main__':
https://docs.python.org/3/library/__main__.html#what-is-the-top-level-code-environment