Function _walk_to_root

src/dotenv/main.py:314–329

Yield directories starting from the given directory up to the root

(path: str)

def _walk_to_root(path: str) -> Iterator[str]:
    """
    Yield directories starting from the given directory up to the root
    """
    if not os.path.exists(path):
        raise IOError("Starting path not found")

    if os.path.isfile(path):
        path = os.path.dirname(path)

    last_dir = None
    current_dir = os.path.abspath(path)
    while last_dir != current_dir:
        yield current_dir
        parent_dir = os.path.abspath(os.path.join(current_dir, os.path.pardir))
        last_dir, current_dir = current_dir, parent_dir


def find_dotenv(