Sieve of Eratosthenes using Python Generators

prime_sieve.py

def sieve():
    def _sieve():
        current = 2
        while True:
            yield current
            current += 1
    def _new_gen(s, current_prime):
        return (n for n in s if n % current_prime != 0)
        
    s = _sieve()
    while True:
        current_prime = next(s)
        yield current_prime
        s = _new_gen(s, current_prime)


s = sieve()
for _ in range(30):
    print(next(s))