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 logging
import os
from typing import Optional
from pip._vendor.pyproject_hooks import BuildBackendHookCaller
from pip._internal.utils.subprocess import runner_with_spinner_message
logger = logging.getLogger(__name__)
def build_wheel_pep517(
name: str,
backend: BuildBackendHookCaller,
metadata_directory: str,
tempd: str,
) -> Optional[str]:
"""Build one InstallRequirement using the PEP 517 build process.
Returns path to wheel if successfully built. Otherwise, returns None.
"""
assert metadata_directory is not None
try:
logger.debug("Destination directory: %s", tempd)
runner = runner_with_spinner_message(
f"Building wheel for {name} (pyproject.toml)"
)
with backend.subprocess_runner(runner):
wheel_name = backend.build_wheel(
tempd,
metadata_directory=metadata_directory,
)
except Exception:
logger.error("Failed building wheel for %s", name)
return None
return os.path.join(tempd, wheel_name)