Use turtle to draw filled polygons.

filledpolygon

import turtle

wn = turtle.Screen()

sides_num = input("How many sides should this polygon have? ")
sides_num = int(sides_num)
poly_color = input("What color should the outline of this polygon be? ")
fill_color = input("What color should this polygon be filled in? ")

polly = turtle.Turtle()

polly.color(poly_color)
polly.fillcolor(fill_color)
polly.fill(True)
for i in range(sides_num):
	
	polly.forward(40)
	polly.left(360/sides_num)
polly.fill(False)