Python `str.split()` Generator

# https://stackoverflow.com/a/9773142
def split_iter(string: str, divider: str) -> Generator[str, None, None]:
    div_size = len(divider)
    start = 0
    while True:
        idx = string.find(divider, start)
        if idx == -1:
            yield string[start:]
            break
        yield string[start:idx]
        start = idx + div_size