Turtle Patterns

 import turtle

t = turtle.Turtle()

turtle.bgcolor("black")

turtle.pensize(2)

turtle.speed(0)

while(True):

    for i in range(6):

        for colors in ["red","blue","magenta","green","yellow","white"]:

            turtle.color(colors)

            turtle.circle(100)

            turtle.left(10)

turtle.hideturtle()

turtle.mainloop()