FileNotFoundError with custom.js and custom.css at start notebook in Debian

[ErunamoJAZZ]

Hi.

I did usual installation for jupyter in my debian laptop, but starting the netbook i had this error:

$ jupyter notebook
Traceback (most recent call last):
  File "/usr/local/bin/jupyter-notebook", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.4/dist-packages/jupyter_core/application.py", line 267, in launch_instance
    return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
  File "/usr/local/lib/python3.4/dist-packages/traitlets/config/application.py", line 591, in launch_instance
    app.initialize(argv)
  File "<string>", line 2, in initialize
  File "/usr/local/lib/python3.4/dist-packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/usr/local/lib/python3.4/dist-packages/notebook/notebookapp.py", line 1001, in initialize
    super(NotebookApp, self).initialize(argv)
  File "<string>", line 2, in initialize
  File "/usr/local/lib/python3.4/dist-packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/usr/local/lib/python3.4/dist-packages/jupyter_core/application.py", line 243, in initialize
    self.migrate_config()
  File "/usr/local/lib/python3.4/dist-packages/jupyter_core/application.py", line 169, in migrate_config
    migrate()
  File "/usr/local/lib/python3.4/dist-packages/jupyter_core/migrate.py", line 230, in migrate
    if migrate_static_custom(custom_src, custom_dst):
  File "/usr/local/lib/python3.4/dist-packages/jupyter_core/migrate.py", line 142, in migrate_static_custom
    with open(custom_js) as f:
FileNotFoundError: [Errno 2] No such file or directory: '/home/user/.ipython/profile_default/static/custom/custom.js'

For fix, i did this: $ touch /home/user/.ipython/profile_default/static/custom/custom.js (Remember, touch command create a empty text file). And then, i had another error:

$ jupyter notebook
Traceback (most recent call last):
  File "/usr/local/bin/jupyter-notebook", line 11, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.4/dist-packages/jupyter_core/application.py", line 267, in launch_instance
    return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
  File "/usr/local/lib/python3.4/dist-packages/traitlets/config/application.py", line 591, in launch_instance
    app.initialize(argv)
  File "<string>", line 2, in initialize
  File "/usr/local/lib/python3.4/dist-packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/usr/local/lib/python3.4/dist-packages/notebook/notebookapp.py", line 1001, in initialize
    super(NotebookApp, self).initialize(argv)
  File "<string>", line 2, in initialize
  File "/usr/local/lib/python3.4/dist-packages/traitlets/config/application.py", line 75, in catch_config_error
    return method(app, *args, **kwargs)
  File "/usr/local/lib/python3.4/dist-packages/jupyter_core/application.py", line 243, in initialize
    self.migrate_config()
  File "/usr/local/lib/python3.4/dist-packages/jupyter_core/application.py", line 169, in migrate_config
    migrate()
  File "/usr/local/lib/python3.4/dist-packages/jupyter_core/migrate.py", line 230, in migrate
    if migrate_static_custom(custom_src, custom_dst):
  File "/usr/local/lib/python3.4/dist-packages/jupyter_core/migrate.py", line 152, in migrate_static_custom
    with open(custom_css) as f:
FileNotFoundError: [Errno 2] No such file or directory: '/home/user/.ipython/profile_default/static/custom/custom.css'

And i used touch again for fix this.

Idk if is possible add a catch for create this files automatically when this happens. Thanks :)

[minrk]

Migrated to jupyter/jupyter_core#52

[minrk]

@ErunamoJAZZ sorry about this, it's a bug in jupyter-core. Moving over there.