import turtle as tt

def turtle_03():
    """Draw a circle"""
    # Settings
    tt.bgcolor("black")
    tt.color("magenta")
    tt.fillcolor("yellow")
    tt.pensize(3)
    tt.speed(3)
    
    # Circle
    tt.begin_fill()
    tt.circle(100)
    tt.end_fill()
    
    tt.exitonclick()