Ce programme dessine une spirale de Fibonacci.

Spirale_Fibonacci.py

#coding: utf-8

import turtle

iterations = int(input("Combien d'itérations ? "))

def fib(n):
    l = [1,1]
    for f in range(n-2):
        l.append(l[-1]+l[-2])
    return l

def spirale(nbs_iterations):
    for f in fib(nbs_iterations):
        turtle.circle(f,180)

spirale(iterations)