Python中如何监控Windows程序并自动重启，遇到bug怎么解决？

import psutil
import subprocess
import time
import logging
from datetime import datetime

# 配置日志
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(levelname)s - %(message)s',
    handlers=[
        logging.FileHandler('monitor.log'),
        logging.StreamHandler()
    ]
)

class ProcessMonitor:
    def __init__(self, process_name, exe_path):
        """
        :param process_name: 要监控的进程名（如: notepad.exe）
        :param exe_path: 程序可执行文件完整路径
        """
        self.process_name = process_name.lower()
        self.exe_path = exe_path
        self.process = None
        
    def is_process_running(self):
        """检查进程是否在运行"""
        for proc in psutil.process_iter(['name']):
            try:
                if proc.info['name'].lower() == self.process_name:
                    return proc
            except (psutil.NoSuchProcess, psutil.AccessDenied):
                pass
        return None
    
    def start_process(self):
        """启动程序"""
        try:
            self.process = subprocess.Popen(self.exe_path)
            logging.info(f"已启动进程: {self.process_name}")
            return True
        except Exception as e:
            logging.error(f"启动进程失败: {e}")
            return False
    
    def monitor(self, check_interval=5):
        """监控主循环"""
        logging.info(f"开始监控进程: {self.process_name}")
        
        while True:
            try:
                current_proc = self.is_process_running()
                
                if not current_proc:
                    logging.warning(f"进程 {self.process_name} 未运行，正在重启...")
                    if not self.start_process():
                        logging.error("重启失败，等待下次检查")
                else:
                    # 检查进程状态
                    try:
                        status = current_proc.status()
                        if status == psutil.STATUS_ZOMBIE:
                            logging.warning(f"进程 {self.process_name} 处于僵尸状态，准备重启...")
                            current_proc.terminate()
                            time.sleep(2)
                            self.start_process()
                    except:
                        pass
                
                time.sleep(check_interval)
                
            except KeyboardInterrupt:
                logging.info("监控程序已停止")
                break
            except Exception as e:
                logging.error(f"监控出错: {e}")
                time.sleep(check_interval)

# 使用示例
if __name__ == "__main__":
    # 配置要监控的程序
    monitor = ProcessMonitor(
        process_name="notepad.exe",  # 进程名
        exe_path="C:\\Windows\\System32\\notepad.exe"  # 程序路径
    )
    
    # 开始监控，每10秒检查一次
    monitor.monitor(check_interval=10)

核心要点：

1. 进程检测：用psutil遍历系统进程，匹配进程名
2. 状态监控：检查进程是否存在，以及是否处于僵尸状态
3. 自动重启：进程消失时用subprocess.Popen()重新启动
4. 异常处理：捕获权限异常、进程异常等
5. 日志记录：所有操作记录到日志文件，方便排查

遇到bug的解决方法：

• 权限问题：用管理员权限运行监控脚本
• 路径问题：确保exe_path是完整路径且存在
• 进程名匹配：Windows进程名带.exe后缀
• 资源占用：合理设置检查间隔，避免CPU过高

一句话建议： 用psutil监控进程状态，subprocess实现重启，加日志记录方便排查。

Traceback (most recent call last):
File “D:\python\lib\site-packages\psutil<a target=”_blank" href=“http://_pswindows.py” rel=“nofollow noopener”>_pswindows.py", line 635, in wrapper
return fun(self, *args, **kwargs)
File “D:\python\lib\site-packages\psutil<a target=”_blank" href=“http://_pswindows.py” rel=“nofollow noopener”>_pswindows.py", line 821, in create_time
return cext.proc_create_time(self.pid)
ProcessLookupError: [Errno 3] No such process

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “D:\python\lib\site-packages\psutil<a target=”_blank" href=“http://init.py” rel=“nofollow noopener”>init.py", line 368, in _init
self.create_time()
File “D:\python\lib\site-packages\psutil<a target=”_blank" href=“http://init.py” rel=“nofollow noopener”>init.py", line 699, in create_time
self._create_time = self._proc.create_time()
File “D:\python\lib\site-packages\psutil<a target=”_blank" href=“http://_pswindows.py” rel=“nofollow noopener”>_pswindows.py", line 640, in wrapper
raise NoSuchProcess(self.pid, self._name)
psutil._exceptions.NoSuchProcess: psutil.NoSuchProcess process no longer exists (pid=11812)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “jiankong.py”, line 40, in <module>
main()
File “jiankong.py”, line 12, in main
p = psutil.Process(pid)
File “D:\python\lib\site-packages\psutil<a target=”_blank" href=“http://init.py” rel=“nofollow noopener”>init.py", line 341, in init
self._init(pid)
File “D:\python\lib\site-packages\psutil<a target=”_blank" href=“http://init.py” rel=“nofollow noopener”>init.py", line 381, in _init
raise NoSuchProcess(pid, None, msg)
psutil._exceptions.NoSuchProcess: psutil.NoSuchProcess no process found with pid 11812