:param str path: Path to examine
    :return str|None: Path to development build folder, such as .venv, .tox etc, if any

def get_dev_folder(path=sys.prefix):
    """
    :param str path: Path to examine
    :return str|None: Path to development build folder, such as .venv, .tox etc, if any
    """
    if not path or len(path) <= 4:
        return None
    dirpath, basename = os.path.split(path)
    if basename in DEV_FOLDERS:
        return path
    return get_dev_folder(dirpath)