get_primes.py

from typing import Generator, Optional


def primes_iter(max_range: Optional[int] = None) -> Generator[int, None, None]:
    primes = [2]
    state = 3
    yield 2
    while True:
        not_prime = False
        if max_range and state > max_range:
            break
        for divisor in primes:
            if not (state % divisor):
                not_prime = True
                break
        if not not_prime:
            primes.append(state)
            yield state
        state += 1


if __name__ == "__main__":
    for i, result in enumerate(primes_iter()):
        print(result)
        if i == 10:
            break