Python i want the code to return * ** ***. how to fix this code

5 def pattern(n): 6 for x in range(1,n+1): 7 stars="*"* + " " 8 return stars thome/pa5_loops.py 8:17 Spaces: 4 (Auto) Terminal [user@sahara -]python - pa5_loops.py >>> pattern(3) **