related to #707

Behold my unprecedented design skills. Anchor is cyan, and cell in between anchor and cursor have purple border, just for demo purpose and visually track bugs.

This is working draft exploring the feasibility of the first part of the work described in #878

So far this does:

• Adds an nbextensions config traitlet to the main NotebookApp.
• Adds logic to the templates and handlers to json serialize that list, put it into the template and get it into a location that main.js could access it.

The purpose of this issue is to discuss the future of the jupyter/notebook repository.

Background: The classic Jupyter notebook interface is currently maintained by a skeleton crew of developers. On the other hand, many people still use the classic interface today.

Problem: We have a widely-used piece of software with very little developer support.

Let's have an open discussion about what to do with this project moving forward.

This morning I am getting the same error in all Jupyter notebooks currently saved in my Github account:

Sorry, something went wrong. Reload?

I have logged in Github and opened them from different web browsers, I have cleared my browsing history and logged in back again, and have tried accessing them while logged out. Same error.

From my personal computer and Jupyter-based servers the notebooks are fine, is just Github that will not display them. All was fine as of yesterday.

Please direct me to the adequate resource if this is not the right forum.

Thank you.

I'm using the notebook from a conda env, and have the environment set up with all of my required packages installed. However, when I try to import one of these (seaborn) in the notebook, I get an import error suggesting it is not installed. This works fine from the command line and I can confirm using the conda command within the notebook that the package is installed:

Running notebook 4.4.1 from conda.

Interestingly, when I try to import notebook from inside of a notebook, I get the same error:

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-2-09fdb2483669> in <module>()
----> 1 import notebook
      2 
      3 notebook.__version__

ImportError: No module named 'notebook'

    km.start_kernel(**kwargs)
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\manager.py", line 240, in start_kernel
    self.write_connection_file()
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 547, in write_connection_file
    kernel_name=self.kernel_name
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
    with secure_write(fname) as f:
  File "C:\Users\Khushboo.Girotra\anaconda3\lib\contextlib.py", line 112, in __enter__
    return next(self.gen)
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 100, in secure_write
    win32_restrict_file_to_user(fname)
  File "C:\Users\Khushboo.Girotra\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 53, in win32_restrict_file_to_user
    import win32api
ImportError: DLL load failed: The specified procedure could not be found.``` 

I have re-install the anaconda as well . but still It is showing the same kernel error.
 Kernel json file shows :
{
 "argv": [
  "C:\\Users\\Khushboo.Girotra\\python.exe",
  "-m",
  "ipykernel_launcher",
  "-f",
  "{connection_file}"
 ],
 "display_name": "Python 3",
 "language": "python"
} 

I have tried lot of solution which are already there but nothing works out . Kindly help

Hi! I'm having an issue with this specific notebook where it doesn't render at all in github. I get the message "Sorry, something went wrong. Reload?". It does work in nbviewer though.

Here is the link to the notebook: https://github.com/erichamers/Cursos/blob/master/Regressa%CC%83o%20Linear/Mercado%20Imobilia%CC%81rio%20USA%20-%20Regressa%CC%83o%20Linear.ipynb

Since we haven't agreed on this yet, I'm opening an issue instead of writing an IPEP. If this is agreed on, I'll write an IPEP.

The week before last, @ellisonbg and I brainstormed about Jupyter packaging. As I remember it, the best solution we came up with requires a combination of Python packaging entry-points, a new message type, and static asset caching (in the web server). This is my understanding of how this solution would work (my notes from our meeting are at home, and my apartment is being fumigated, so I don't have access to them).

Jupyter level, kernel extensions

A new message, the first, (in blue) would be added, allowing the server to ask the kernel if the static assets it knows about, associated with that kernel, is correct. The message would be a dict of static asset path and contents hashes.

The same message in the opposite direction is the kernel's response. It would be some type of data structure, maybe a binary message, containing static asset paths and their contents, and a list of the static assets that can be deleted from the cache.

A second new message (in red), would be added that would allow the kernel to invoke a require.js call in the front-end. This is preferred over standard display(JS) calls, because the notebook contents will remain unaffected.

IPython level, kernel extensions

Python entry points will be used as a registry. Two entry points will be defined:

1. an entry point for code to run when the kernel is started.
2. an entry point for a method that returns static assets (paths).

Jupyter level, server extensions and notebook extensions

Python entry points will be used as a registry. Three entry points will be defined:

1. an entry point for code to run when the server is started.
2. an entry point for a method that returns static assets (paths).
3. an entry point for a paths to be requireed when the notebook page loads.

EDIT To help the discussion, issues and specific cases are listed here: https://jupyter.hackpad.com/Packaging-PbIgxnC71or

When I'm working in a notebook jupyter 4.0.6 in Safari, OSX 10.9.5 I periodically get a message saying the file has changed from disk, do I want to reload or overwrite. I"m certain there are no other kernels or notebooks running. I usually just say overwrite but why does this happen? One more bit of info: I'm running the notebook as a publicly accessible server (so I can access it from my labtop) and all the files live on a locally mounted server. here is the terminal output: iMac:~ $ jupyter notebook [I 15:17:16.737 NotebookApp] Serving notebooks from local directory: /Users/dosc3612 [I 15:17:16.737 NotebookApp] 0 active kernels [I 15:17:16.737 NotebookApp] The IPython Notebook is running at: https://[all ip addresses on your system]:8888/ [I 15:17:16.738 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). [I 15:28:57.760 NotebookApp] Kernel started: ec591d51-c03c-44fc-86bf-a221c0e1b0a7

IRkernel::main() [1] "Got unhandled msg_type:" "comm_open" [I 15:30:57.046 NotebookApp] Saving file at /Documents/snotel-regression_project/src/validate_surveygridded.ipynb [I 15:37:04.133 NotebookApp] Saving file at /Documents/snotel-regression_project/src/validate_surveygridded.ipynb [I 15:37:05.369 NotebookApp] Saving file at /Documents/snotel-regression_project/src/validate_surveygridded.ipynb

Installed Python (3.6) via brew, and the notebook (version 5.0.0) via pip3. When I hit tab, say, after df., nothing happens, then, when I manually complete df.head(), execution queued, and run after ~30 seconds. At the same time, suggestion drop-down menu appears.

PermissionError: [Errno 13] Permission deniedRo: 'C:\\Users\\srikanth\\AppData\\Roaming\\jupyter\\runtime\\kernel-026a1895-5304-47b1-b096-7c7c0c165723.json'

The kernel in jupyter is dead always (even on restart).
The Kernel error is "Failed to start kernel"---> "Unhandled error"
Traceback (most recent call last):
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\tornado\web.py", line 1699, in _execute
    result = await result
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "C:\Users\srikanth\AppData\Local\Programs\Python\Python37\lib\site-packages\notebook\services\sessions\handlers.py", line 72, in post
    type=mtype))
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run
    value = future.result()
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "C:\Users\srikanth\AppData\Local\Programs\Python\Python37\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 88, in create_session
    kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run
    value = future.result()
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "C:\Users\srikanth\AppData\Local\Programs\Python\Python37\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 101, in start_kernel_for_session
    self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run
    value = future.result()
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 209, in wrapper
    yielded = next(result)
  File "C:\Users\srikanth\AppData\Local\Programs\Python\Python37\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 168, in start_kernel
    super(MappingKernelManager, self).start_kernel(**kwargs)
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
    km.start_kernel(**kwargs)
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\jupyter_client\manager.py", line 240, in start_kernel
    self.write_connection_file()
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 547, in write_connection_file
    kernel_name=self.kernel_name
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
    with secure_write(fname) as f:
  File "C:\Users\srikanth\AppData\Local\Programs\Python\Python37\lib\contextlib.py", line 112, in __enter__
    return next(self.gen)
  File "C:\Users\srikanth\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 102, in secure_write
    with os.fdopen(os.open(fname, open_flag, 0o600), mode) as f:
PermissionError: [Errno 13] Permission denied: 'C:\\Users\\srikanth\\AppData\\Roaming\\jupyter\\runtime\\kernel-026a1895-5304-47b1-b096-7c7c0c165723.json'

This notebook is run Windows 10 OS. I have exhausted every solution out there, and none of it works.

Bumps json5 from 2.2.1 to 2.2.3.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Bumps json5 from 1.0.1 to 1.0.2.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Context

Currently, the plan is for the next major version of the Jupyter Notebook to use JupyterLab components. However, many people are still using and developing on the v6 notebook setup. This is particularly challenging for people building extensions that depend on APIs that will soon be removed. For example, I recently found out that a large university started building a custom grading UI on top of the v6 notebook UI, because they didn't realize it was going to be switched to JupyterLab.

Proposal

I suggest that we add a large ‼️ DEPRECATION to any of the current documentation pages that discuss extension APIs that will be deprecated. For example, the front-end interface page. We can then include a link to the Jupyter Notebook v7 plan and help clarify confusion before people are surprised.

Fixes #6637 Fixes https://github.com/jupyter/notebook/issues/6633 Fixes https://github.com/jupyter/notebook/issues/6567

To check

• [x] Depend on @jupyter/ydoc instead of @jupyter-notebook/ydoc: https://github.com/jupyterlab/jupyterlab/pull/13506
• [x] https://github.com/jupyterlab/jupyterlab/pull/13470
• [x] https://github.com/jupyterlab/jupyterlab/issues/13461
• [x] https://github.com/jupyterlab/jupyterlab/pull/13612
• [x] https://github.com/jupyterlab/jupyterlab/pull/12584
• [ ] https://github.com/jupyterlab/jupyterlab/pull/13466
• [x] https://github.com/jupyterlab/jupyterlab/pull/13688
• [x] Update to the latest Lumino 2 pre-release
• [x] Other changes from https://github.com/jupyterlab/jupyterlab/releases/tag/v4.0.0a32
• [ ] Update UI tests snapshots

Describe the bug I can't recognize the real source of problem as it is IPython problem or notebook, cython, zmq, ipykernel ? https://github.com/ipython/ipython/issues/13867

[I 00:09:11.918 NotebookApp] KernelRestarter: restarting kernel (4/5), new random ports
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/local/lib/python3.7/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/home/manpython/venvp311/lib/python3.7/site-packages/ipykernel_launcher.py", line 17, in <module>
    app.launch_new_instance()
  File "/usr/home/manpython/venvp311/lib/python3.7/site-packages/traitlets/config/application.py", line 1040, in launch_instance
    app.initialize(argv)
  File "/usr/home/manpython/venvp311/lib/python3.7/site-packages/traitlets/config/application.py", line 113, in inner
    return method(app, *args, **kwargs)
  File "/usr/home/manpython/venvp311/lib/python3.7/site-packages/ipykernel/kernelapp.py", line 666, in initialize
    self.init_sockets()
  File "/usr/home/manpython/venvp311/lib/python3.7/site-packages/ipykernel/kernelapp.py", line 307, in init_sockets
    self.shell_port = self._bind_socket(self.shell_socket, self.shell_port)
  File "/usr/home/manpython/venvp311/lib/python3.7/site-packages/ipykernel/kernelapp.py", line 244, in _bind_socket
    return self._try_bind_socket(s, port)
  File "/usr/home/manpython/venvp311/lib/python3.7/site-packages/ipykernel/kernelapp.py", line 220, in _try_bind_socket
    s.bind("tcp://%s:%i" % (self.ip, port))
  File "zmq/backend/cython/socket.pyx", line 540, in zmq.backend.cython.socket.Socket.bind
  File "zmq/backend/cython/checkrc.pxd", line 28, in zmq.backend.cython.checkrc._check_rc
zmq.error.ZMQError: Operation not permitted
[W 00:09:14.941 NotebookApp] KernelRestarter: restart failed

• OS: [e.g. iOS] NAME=FreeBSD VERSION=13.0-RELEASE-p11 VERSION_ID=13.0

• Browser [FF]

• Version [108.0.1]

Additional context I upgraded everyting what was possible around jupyter. Works fine before I decided move to P311, no sucess then back to P378.. and ops.. this same error.

This PR is a part of https://github.com/jupyter/notebook/issues/6661 and helps demonstrate Uffizzi integration with Notebook.

This will help create preview environments on all of Notebook Pull Requests and help contributors including the maintainers iterate faster on their PRs. I have created a PR over https://github.com/daramayis/f-notebook/pull/1#issuecomment-1365708885 to show what it looks like to have a preview environment deployed against your PR.

You can check out the preview over here as well.

@waveywaves