What is the error in this code?? The error is in 8 line

Question

from Turtle import *
def draw_multicolor_square(t, sz):
for i in ["red", "purple", "hotpink", "blue"]:
t.color(i)
t.forward(sz)
t.left(90)

wn = turtle.Screen()
wn.bgcolor("lightgreen")

tess = turtle.Turtle()
tess.pensize(3)

size = 20
for i in range(15):
draw_multicolor_square(tess, size)
size =size + 10
tess.forward(10)
tess.right(18)
wn.mainloop()

Answer 1

It don't also work ... I did all the changes but it still don't work

Answer 2

It tell me that no module is called 'turtle '

Answer 3

# Try this code, and your code output is very Beautiful

from turtle import *
def draw_multicolor_square(t, sz):
for i in ["red", "purple", "hotpink", "blue"]:
t.color(i)
t.forward(sz)
t.left(90)

wn = Screen()
wn.bgcolor("lightgreen")

tess = Turtle()
tess.pensize(3)

size = 20
for i in range(15):
draw_multicolor_square(tess, size)
size =size + 10
tess.forward(10)
tess.right(18)
wn.mainloop()