extent y start 102133

from tkinter import *
import random

ventana=Tk()
largo = 100
ancho = 100
foo = ["#7D735A","#DBAA6F","#FFCE6F","#FCE190","#1C343E"]
lienzo=Canvas(ventana,width=largo,height=ancho)
lienzo.pack()

lienzo.create_arc(0,0,100,100,start = 180, style="pieslice", extent = 270)

mainloop()