Funny python code

from turtle import *
l=['red','purple','yellow','orange','blue','pink','green']
for j in range(1,4):
for i in range(7):
color(l[i])
begin_fill()
pensize(3)
left(50)
forward(100)
circle(50,200)
right(140)
circle(50,200)
forward(100)
end_fill