Your message dated Fri, 19 Feb 2021 15:58:40 +0000 with message-id <[email protected]> and subject line close has caused the Debian Bug report #913110, regarding jupyter-notebook: ipython3 kernel dies when creating python3 notebook to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 913110: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=913110 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: jupyter-notebook Version: 4.2.3-4 Severity: important Dear Maintainer, * What led up to the situation? 1. Installed jupyter-notebook. 2. Ran jupyter-notebook. 3. Tried to create Python3 notebook. * What exactly did you do (or not do) that was effective (or ineffective)? Selected "New". The only available option on a clean install of jupyter- notebook is Python3 (which is as expected). So I selected "New" to create a new python3 notebook. * What was the outcome of this action? The ipython3 kernel dies (consistently, 100% of the time). * What outcome did you expect instead? I expected the notebook to be created. The fix is described below. ---- The output on the console is: HN:~] jupyter-notebook [I 07:37:19.123 NotebookApp] Serving notebooks from local directory: /home/n7dr [I 07:37:19.124 NotebookApp] 0 active kernels [I 07:37:19.124 NotebookApp] The Jupyter Notebook is running at: http://localhost:8888/ [I 07:37:19.124 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). [I 07:37:29.629 NotebookApp] Creating new notebook in [I 07:37:32.575 NotebookApp] Kernel started: 00f6d461-87f1-410e-9963-5f5db91602f3 /usr/bin/python: No module named ipykernel_launcher [I 07:37:35.561 NotebookApp] KernelRestarter: restarting kernel (1/5) /usr/bin/python: No module named ipykernel_launcher [I 07:37:38.571 NotebookApp] KernelRestarter: restarting kernel (2/5) /usr/bin/python: No module named ipykernel_launcher [I 07:37:41.582 NotebookApp] KernelRestarter: restarting kernel (3/5) /usr/bin/python: No module named ipykernel_launcher [W 07:37:42.678 NotebookApp] Timeout waiting for kernel_info reply from 00f6d461-87f1-410e-9963-5f5db91602f3 [I 07:37:44.592 NotebookApp] KernelRestarter: restarting kernel (4/5) WARNING:root:kernel 00f6d461-87f1-410e-9963-5f5db91602f3 restarted /usr/bin/python: No module named ipykernel_launcher [W 07:37:47.604 NotebookApp] KernelRestarter: restart failed [W 07:37:47.605 NotebookApp] Kernel 00f6d461-87f1-410e-9963-5f5db91602f3 died, removing from map. ERROR:root:kernel 00f6d461-87f1-410e-9963-5f5db91602f3 restarted failed! [W 07:37:47.654 NotebookApp] Kernel deleted before session [W 07:37:47.656 NotebookApp] 410 DELETE /api/sessions/56ef952c-800c-448f-baf0-857081b87abc (::1) 3.46ms referer=http://localhost:8888/notebooks/Untitled4.ipynb?kernel_name=python3 The source of the problem appears to be at this line: /usr/bin/python: No module named ipykernel_launcher /usr/bin/python is a symlink to python2 NOT python3 So it seems wrong thet jupyter-notebook is calling /usr/bin/python when trying to create a Python3 notebook. So the fix is: in .local/jupyter/kernels/python3/kernel.json, the first few lines as installed by the package read: { "argv": [ "python", the third line should be changed to: "python3", After making this change, the jupyter-notebook application correctly creates a Python3 notebook, as expected. -- System Information: Debian Release: 9.5 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-8-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE= (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages jupyter-notebook depends on: ii python3 3.5.3-1 ii python3-notebook 4.2.3-4 jupyter-notebook recommends no packages. jupyter-notebook suggests no packages. -- no debconf information
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--- Begin Message ---Closing since this appear to pertain to a non-debian installed kernel, and there has been no more information forthcoming.
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