Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialBijay Gurung
1,818 PointsI'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
Jan Brits
2,414 Pointsos.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.
Tor Ivan Boine
4,057 PointsNot sure what you mean? He made a function named clear_screen. So he can call it whenever.