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Python Python Collections (2016, retired 2019) Lists Shopping List Take Three

I'm well confused about the uses of os.system('cls'). when to use os.system('cls') ?

In shopping list os.system('cls') was not used in every function, why?

2 Answers

os.system('cls') will clear the screen. It is the equivalent of being in the command prompt box in windows and typing the cls command after having typed a few commands previously and having filled up the command prompts with text. The course creator only uses that command to clear it in that particular function for that particular use.

You will use this when you want your program to clear the screen before displaying something else on the screen.

If you are on a Windows computer, go to command prompt, type in dir for example, then use cls to clear the screen.

Not sure what you mean? He made a function named clear_screen. So he can call it whenever.