Says numbers of Fibonacci sequence starting from the 50th one and goes on forever.

fibosayer.py

#!/usr/bin/env python

from __future__ import print_function

import random
import time
from subprocess import check_call
from shlex import split

voices = tuple('Agnes Kathy Princess Vicki Victoria Bruce Fred Junior Ralph'.split()) + \
         tuple('Albert Bahh Bells Boing Bubbles Cellos Deranged Hysterical Trinoids Whisper Zarvox'.split()) + \
         ("Bad News", "Good News", "Pipe Organ")

def say(text):
    voice = random.choice(voices)
    print('{}: {}'.format(voice, text))
    check_call(split('say -v "{}" "{}"'.format(voice, text)))

def fibg(a, b):
    while True:
        a, b = b, a + b
        yield b

def fibs():
    yield 0
    yield 1
    for f in fibg(0, 1):
        yield f

for i, f in enumerate(fibs()):
    if i > 50:
        say(f)
        time.sleep(1.0)