使用Jupyter Notebook保存文件时持续出现[Errno 9]错误求助

问题现象 #

在Firefox浏览器中使用Jupyter Notebook，每次运行程序都会触发保存错误：
[E 19:06:49.747 NotebookApp] Error while saving file: xG_SetPiece_Model.ipynb [Errno 9] Bad file descriptor

PowerShell中的完整报错信息如下：

[E 19:06:49.747 NotebookApp] Error while saving file: xG_SetPiece_Model.ipynb [Errno 9] Bad file descriptor
    Traceback (most recent call last):
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\site-packages\notebook\services\contents\filemanager.py", line 493, in save
        self._save_notebook(os_path, nb)
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\site-packages\notebook\services\contents\fileio.py", line 290, in _save_notebook
        nbformat.write(nb, f, version=nbformat.NO_CONVERT)
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\contextlib.py", line 126, in __exit__
        next(self.gen)
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\site-packages\notebook\services\contents\fileio.py", line 210, in atomic_writing
        yield f
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\contextlib.py", line 126, in __exit__
        next(self.gen)
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\site-packages\notebook\services\contents\fileio.py", line 118, in atomic_writing
        os.fsync(fileobj.fileno())
    OSError: [Errno 9] Bad file descriptor
[W 19:06:49.747 NotebookApp] 500 PUT /api/contents/xG_SetPiece_Model.ipynb (127.0.0.1): Unexpected error while saving file: xG_SetPiece_Model.ipynb [Errno 9] Bad file descriptor
[W 19:06:49.747 NotebookApp] Unexpected error while saving file: xG_SetPiece_Model.ipynb [Errno 9] Bad file descriptor
[E 19:06:49.747 NotebookApp] {
      "Host": "localhost:8888",
      "Accept": "application/json, text/javascript, */*; q=0.01",
      "Referer": "http://localhost:8888/notebooks/xG_SetPiece_Model.ipynb",
      "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:106.0) Gecko/20100101 Firefox/106.0"
    }
[E 19:06:49.762 NotebookApp] 500 PUT /api/contents/xG_SetPiece_Model.ipynb (127.0.0.1) 1319.730000ms referer=http://localhost:8888/notebooks/xG_SetPiece_Model.ipynb
[I 19:07:33.833 NotebookApp] Saving file at /xG_SetPiece_Model.ipynb
[I 19:09:48.442 NotebookApp] Saving file at /xG_SetPiece_Model.ipynb
[E 19:09:51.971 NotebookApp] Error while saving file: xG_SetPiece_Model.ipynb [Errno 9] Bad file descriptor
    Traceback (most recent call last):
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\site-packages\notebook\services\contents\filemanager.py", line 493, in save
        self._save_notebook(os_path, nb)
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\site-packages\notebook\services\contents\fileio.py", line 290, in _save_notebook
        nbformat.write(nb, f, version=nbformat.NO_CONVERT)
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\contextlib.py", line 126, in __exit__
        next(self.gen)
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\site-packages\notebook\services\contents\fileio.py", line 210, in atomic_writing
        yield f
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\contextlib.py", line 126, in __exit__
        next(self.gen)
      File "C:\Users\hp\AppData\Local\Programs\Python\Python39\lib\site-packages\notebook\services\contents\fileio.py", line 118, in atomic_writing
        os.fsync(fileobj.fileno())
    OSError: [Errno 9] Bad file descriptor

系统环境 #

• Windows 10
• Python 3.9.12（64位）
• Pip 22.3
• Jupyter 1.0.0

已尝试无效方案 #

• 重新安装Jupyter Notebook（GitHub建议方案）
• 修复文件权限问题（Stack Overflow建议方案）

可行解决方案 #

1. 禁用原子写入功能 #

Jupyter的原子写入机制在Windows部分环境下会触发文件描述符错误，通过配置关闭该功能：

• 打开PowerShell，执行命令生成配置文件：

  jupyter notebook --generate-config
  

• 找到生成的配置文件（路径通常为C:\Users\hp\.jupyter\jupyter_notebook_config.py）
• 打开文件，找到c.FileContentsManager.use_atomic_writing行，取消注释并设置为False：

  c.FileContentsManager.use_atomic_writing = False
  

• 重启Jupyter Notebook后测试保存功能

2. 更换浏览器测试 #

部分浏览器的进程或缓存可能干扰文件操作，尝试使用Chrome或Edge打开Notebook，验证是否仍出现保存错误

3. 移动Notebook文件位置 #

若文件存放在系统盘用户目录，可能存在隐性权限限制，将.ipynb文件移动到D盘等非系统盘的普通目录，再重新打开运行

4. 更新依赖包 #

依赖版本不兼容可能导致问题，执行以下命令更新相关组件：

pip install --upgrade jupyter notebook nbformat

内容的提问来源于stack exchange，提问作者DataNoob