Code example: Estimating Pi with Fiber

example.py

from fiber import Pool
import random

NUM_SAMPLES = int(1e6)

def is_inside(p):
    x, y = random.random(), random.random()
    return x * x + y * y < 1

def main():
    pool = Pool(processes=4)
    pi = 4.0 * sum(pool.map(is_inside, range(0, NUM_SAMPLES))) / NUM_SAMPLES
    print("Pi is roughly {}".format(pi))

if __name__ == '__main__':
    main()