晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //opt/imunify360/venv/lib/python3.11/site-packages/pycares/utils.py
try:
    import idna as idna2008
except ImportError:
    idna2008 = None


def ascii_bytes(data):
    if isinstance(data, str):
        return data.encode('ascii')
    if isinstance(data, bytes):
        return data
    raise TypeError('only str (ascii encoding) and bytes are supported')


def maybe_str(data):
    if isinstance(data, str):
        return data
    if isinstance(data, bytes):
        try:
            return data.decode('ascii')
        except UnicodeDecodeError:
            return data
    raise TypeError('only str (ascii encoding) and bytes are supported')


def is_all_ascii(text):
    for c in text:
        if ord(c) > 0x7f:
            return False
    return True

def parse_name_idna2008(name):
    parts = name.split('.')
    r = []
    for part in parts:
        if is_all_ascii(part):
            r.append(part.encode('ascii'))
        else:
            r.append(idna2008.encode(part))
    return b'.'.join(r)

def parse_name(name):
    if isinstance(name, str):
        if is_all_ascii(name):
            return name.encode('ascii')
        if idna2008 is not None:
            return parse_name_idna2008(name)
        return name.encode('idna')
    if isinstance(name, bytes):
        return name
    raise TypeError('only str and bytes are supported')


__all__ = ['ascii_bytes', 'maybe_str', 'parse_name']

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