taC-h

from __future__ import annotations
from typing import Optional


class Node:
    def __init__(self, value: int, next: Optional[Node]):
        self.value = value
        self.next = next

taC-h

from __future__ import annotations
from typing import Optional
from functools import reduce


class Node:
    def __init__(self, value: int, next: Optional[Node]):
        self.value = value
        self.next = next
    

taC-h

OUT=${2:-"$1.png"}
if [ -z $1 ];then
    echo "no input file"
    exit 1
fi
if [ $# -gt 2 ];then
    echo "too many input"
    exit 1
fi
echo $OUT

taC-h

#!/bin/bash
set -eu
function extract(){
    cat $0 | awk "/^#end/{if(i)exit} i{print} /^#$1/{i++}"
}

extract "python" | python3
exit 0

#python