Pythonでテキストファイルを引数として外部コマンドを連続処理するスクリプト

#!/usr/bin/env python3

import os
import subprocess
from pathlib import Path

if __name__ == '__main__':
    target_command = '外部コマンド'
    root_dir = '.'
    schedule_dir = root_dir + '/' + 'schedule'
    schedule_file = schedule_dir + '/' + target_command + ".txt"
    success_file = schedule_dir + '/' + target_command + ".log"
    error_file = schedule_dir + '/' + target_command + ".err"

    if (not(os.path.isdir(schedule_dir))):
        Path(schedule_dir).mkdir()
    
    if (not(os.path.isfile(schedule_file))):
        Path(schedule_file).touch()

    with open(schedule_file,'r',encoding="utf-8") as f:
        content = f.read()
    
    items = content.split('\n')

    success = []
    errors = []
    for item in items:
        if item == '':
            continue
        cmd = [target_command, item]
        proc = subprocess.run(cmd, stdout=subprocess.PIPE,stderr=subprocess.PIPE,text=True)
        if (proc.returncode == 0):
            success.append(item)
        else:
            print(proc.returncode)
            errors.append(item)
            with open(error_file, "a", encoding="utf-8") as f:
                f.write(proc.stdout)
    
    if (len(success)>0):
        s = "\n".join(success)
        with open(success_file, "a", encoding="utf-8") as f:
            f.write(s)
    
    e = "\n".join(errors)
    with open(schedule_file, "w", encoding="utf-8") as f:
        f.write(e)