小编pro*_*mbc的帖子

我想提升课程,pathlib.Path但上面的简单例子不起作用.

from pathlib import Path

class PPath(Path):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

test = PPath("dir", "test.txt")

这是我的错误消息.

Traceback (most recent call last):
  File "/Users/projetmbc/test.py", line 14, in <module>
    test = PPath("dir", "test.txt")
  File "/anaconda/lib/python3.4/pathlib.py", line 907, in __new__
    self = cls._from_parts(args, init=False)
  File "/anaconda/lib/python3.4/pathlib.py", line 589, in _from_parts
    drv, root, parts = self._parse_args(args)
  File "/anaconda/lib/python3.4/pathlib.py", line 582, in _parse_args
    return cls._flavour.parse_parts(parts)
AttributeError: type object 'PPath' has no attribute '_flavour'

我做错了什么？

以下代码不会在第一次exit 1调用时退出error_exit。我缺少什么？

#!/bin/bash

THIS_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
JINJANG_DIR="$(cd "$THIS_DIR/../.." && pwd)"
DATAS_DIR="$THIS_DIR/datas"

error_exit() {
    echo ""
    echo "ERROR - Following command opens the file that has raised an error."
    echo ""
    echo "  > open \"$1\""
    exit 1
}


cd "$DATAS_DIR"

find . -name 'datas.*'  -type f | sort  | while read -r datafile
do
    localdir="$(dirname $datafile)"
    
    echo "    * Testing ''$localdir''."
    
    filename=$(basename "$datafile")
    ext=${filename##*.}
    
    if [ "$ext" == "py" ]
    then
        unsafe="-u"
    else
        unsafe="" …

该命令git log -1提供有关上次提交的信息。我只对号码 id 感兴趣。可以git 给我这个，还是我必须对输出使用基本解析（我知道该怎么做）？

> git log -1
commit abcdefgh123456789000 (HEAD -> master, origin/master)
Author: ...
...