Draw Rainbow🌈|Full Python Code || Python Turtle

Code for Rainbow:
import turtle
import colorsys
def draw(x,y,r,pensize,color):

num_col=49

radius=350
Penwidth=(20*7)/num_col
hue=0
for i in range(num_col):
draw(0,-100,radius,Penwidth,(r,g,b))
radius-=(Penwidth-1)
hue+=(0.9)/num_col
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