每次我运行“jupyter notebook”时，为什么我总是在 mac os 上得到这个？

Question

每次我在 mac os 上运行“jupyter notebook”时，为什么总是出现这个错误？

案件：

1. 我有 python2.x 并且我安装了 python3.7（所以，我在这里有两个命令）
2. 我用 pip 安装了 jupyter
3. 当我输入 jupyter notebook 命令时，我总是收到这些错误

错误：

Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.7/bin/jupyter-notebook", line 11, in <module>
  sys.exit(main())
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/jupyter_core/application.py", line 266, in launch_instance
  return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/traitlets/config/application.py", line 658, in launch_instance
  app.start()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/notebook/notebookapp.py", line 1697, in start
  browser = webbrowser.get(self.browser or None)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/webbrowser.py", line 42, in get
  register_standard_browsers()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/webbrowser.py", line 531, in register_standard_browsers
  raw_result = subprocess.check_output(cmd, stderr=subprocess.DEVNULL)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 376, in check_output
  **kwargs).stdout
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 453, in run
  with Popen(*popenargs, **kwargs) as process:
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 756, in __init__
  restore_signals, start_new_session)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 1499, in _execute_child
  raise child_exception_type(errno_num, err_msg, err_filename)
NotADirectoryError: [Errno 20] Not a directory: 'xdg-settings'

Answer 1

我也得到了同样的NotADirectoryError: [Errno 20]。在您的情况下，它指向的文件是'xdg-settings'.

看来该文件'xdg-settings'可能是快捷方式，而无法找到实际文件。您可以做的就是简单地删除该文件（仅当它是快捷方式时）。然后重新启动jupyter笔记本，它应该可以正常工作。