how do i create wall tiles like the one in the attachment below using turtle graphics in python and loops?
sorry, i dont know how to post the picture directly :(

You basically need to know how to turtle works, I havent used it fo ages, but it is very complicated if you want to do a lot of wall tiles. The process is something like: PenDown, Forward 20, Left 90, Forward 50, Left 90, Forward 20, Left 90, Forward 50, PenUp, and this makes one wall tile. Obviously this aren't the real codes, search on python's documentation or use google. You also need to have the module and import it (obviously). Hope it helps