stackless python prime generator

gistfile1.py

# 相比sieve.go，内存占用少很多哦 - 对比 http://gist.github.com/257036
import stackless

def generate(channel):
	i = 2
	while True:
		channel.send(i)
		i = i+1

def filter_prime(in_chan, out_chan, prime):
	while True:
		num = in_chan.receive()
		if num % prime != 0:
			out_chan.send(num)

def main():
	channel = stackless.channel()
	stackless.tasklet(generate)(channel)
	while True:
		prime = channel.receive()
		print prime
		new_chan = stackless.channel()
		stackless.tasklet(filter_prime)(channel, new_chan, prime)
		channel = new_chan

stackless.tasklet(main)()
stackless.run()