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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import urllib.parse
class PackageIndex:
"""Represents a Package Index and provides easier access to endpoints"""
__slots__ = ["url", "netloc", "simple_url", "pypi_url", "file_storage_domain"]
def __init__(self, url: str, file_storage_domain: str) -> None:
super().__init__()
self.url = url
self.netloc = urllib.parse.urlsplit(url).netloc
self.simple_url = self._url_for_path("simple")
self.pypi_url = self._url_for_path("pypi")
# This is part of a temporary hack used to block installs of PyPI
# packages which depend on external urls only necessary until PyPI can
# block such packages themselves
self.file_storage_domain = file_storage_domain
def _url_for_path(self, path: str) -> str:
return urllib.parse.urljoin(self.url, path)
PyPI = PackageIndex("https://pypi.org/", file_storage_domain="files.pythonhosted.org")
TestPyPI = PackageIndex(
"https://test.pypi.org/", file_storage_domain="test-files.pythonhosted.org"
)