Python Forum

I am new to programming and i have a threat that is Turple is not callable how can i solve it. Also, i cant figure out how to color my polygon using the if statment.
here is my code:

import turtle

turtle.Screen()

alex=turtle.Turtle()


n=int(input('please enter the number of polygon sides: '))
length=float(input('Give me the length of the side in pixels: '))
alex=turtle.Turtle()

alex.pencolor('red')
alex.pencolor('green')
i=n
for i in range(n):

alex.forward(length)
alex.left(360/n)



if ( i%2==0):
alex.pencolor('green')
print('i love you')

else:
alex.pencolor('red')
print('i hate you')

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