Clear screen in python 3.6

Question

As I am using pycharm for python, I want a command that clear the screen properly. I tried my best by using different commands but in case of using them there is an arrow come on console and the text doesn't remove.

Answer 1

how about os.system('clear') ?

Answer 2

thanks David Ashton
but It doesn't work

Answer 3

is it:
import os
os.system('cls') #windows
os.system('clear') #linux