Vscode jupyter restart kernel shortcut. It executes your code, manages the environment, keeps track of variables and outputs and sends Learn what is new in the Visual Studio Code January 2026 Release (1. If I try to use the Create or open a Jupyter Notebook You can create a Jupyter Notebook by running the Create: New Jupyter Notebook command from the Command Palette (⇧⌘P In the Jupyter toolbar, there's a Run All button which looks a lot like the Restart and Run All button in Jupyter Lab My initial expectation was that those buttons would be analogous, but in Descriptions of kernel selection options and tutorials on managing different types of kernels when working with Jupyter Notebooks in Visual Studio Code. Contribute to microsoft/vscode-jupyter development by creating an account on GitHub. A Jupyter kernel is the computational engine that runs the code contained in a Jupyter notebook. 1 (Universal When I try to run a cell in a jupyter notebook, in VSCode, I get a notification saying "Reconnecting to the kernel ". When running a simple code I have to interrupt the execution getting the message "Interrupting the kernel 'Python 3. I have a jupyter. If I look at the extension log I find this. Question: Is there a keyboard short cut to act as Kernel->Restart This page documents the command-based operations for managing Jupyter kernels within the extension. Running a line of code in a kernel Running However, if I dare to close VSCode I then need to uninstall polyglot notebooks and all its dependencies, restart the extensions, close VSCode, reopen VSCode, and reinstall polyglot notebooks before the To move the cursor up to Kernel and select Restart Kernel and Run All Cells can take 5 secs. So even when I restart the kernel and quit VSCode, there's a Python process that gets stuck on my machine, and I have to manually kill it from terminal or activity monitor. Here are some of the most Descriptions of kernel selection options and tutorials on managing different types of kernels when working with Jupyter Notebooks in Visual Studio Code. I have seen the documentation for keyboard 0 A workaround would be to run the kernel in a separate terminal (using the jupyter notebook command), and to connect to that kernel from VS Code (Click on "Jupyter Server: local" and choose I would like to restart IPython (jupiter) notebook Kernel and clear all outputs. It does work when i click the restart icon in the how to interrupt & restart kernel, then run 1st cell automatically #16445 takbal started this conversation in Tips, Tricks and Workarounds takbal on Feb 13, 2025 The "Restart Kernel" button at the top of the Jupyter tool in VS Code used to be titled "Restart Kernel" (of course), but now it shows what appears to be a variable name: %jupyter. 13. restartkernelandrunallcells). enableNativeInteractiveWindow": false to temporarily opt out of the new 通过以上步骤，你可以轻松地在VS Code中重启Jupyter内核，确保你的工作环境保持流畅和高效。 如果遇到内核崩溃或无法启动的情况，重启内核通常是解决问 Testing microsoft/vscode#131209 I'm not sure why we added the "Yes and don't ask again" choice when I restart a kernel. In my visual studio code, I do not have the restart and stop execution buttons. In the top menu, select Kernel. json If you upgrade to a newer version of the notebook, you can define your own keyboard shortcuts and so could set you own shortcut for the "restart kernel" command which does not prompt you. How to check on Jupyter kernel states How to Access and Restart Jupyter Kernels Validated on 14 Dec 2023 • Last edited on 22 Jan 2026 Notebooks are a web-based Jupyter IDE with shared persistent OS (Windows | Mac | Linux distro) and version: Windows 10 21H1 Python and/or Anaconda version: Miniconda 3 [Python 3. Added two keyboard shortcuts that match shortcuts used by JupyterLab 0 0 restarts the kernel i i interrupts the kernel Fixes #9. When I'm working on a notebook using Jupyter Lab, often times, I put code into a local folder so that I can reuse that code in other notebooks. The kernel failed to restart when I click "restart The bug is that when the kernel dies, VSCode seems unable to recreate it (the "restart" button is disabled, as shown in my initial post), Ok Environment data VS Code Version: 1. 4. I thought it might be of interest to The investigation and workaround is https://github. dev) #3998 New The "Restart" and "Interrupt" buttons are greyed-out and disabled, implying that the Jupyter server isn't running. Using uv for package Hi all! I wrote about blog post about Jupyter’s most useful keyboard shortcuts. It covers the registration, implementation, and execution flow of kernel lifecycle There are different kernels available in the Jupyter Notebook like the Python3 kernel to execute the code of Python. A corrupted kernel, memory issues, or unexpected behavior can all be solved with a simple restart. If I try to use the "Notebook: When I change an imported python script when running cell by cell imports doesn't work until I restart the whole program VSCode. In addition, this behavior is specific to jupyter In addition to loading required modules, in the first cell of the jupyter notebook, I usually load variables (e. Do you want to restart the kernel instead? All variables will be lost. - [1] (https://don Discover 10 must-know Jupyter Notebook tips for beginners — from keyboard shortcuts and magic commands to display settings, debugging, and notebook organization. So every time when I restart a jupyter notebook, I need to Jupyter: Export Current Python File and Output as Jupyter Notebook: creates a Jupyter notebook from the contents of the current file and includes output from code cells. It executes your code, manages the environment, keeps track of variables and outputs and sends A complete guide to using uv with Jupyter notebooks for interactive computing, data analysis, and visualization, including kernel management and virtual environment integration. Figuring out how to how setup a jupyter notebook is pretty easy - you just open your terminal, install jupyter & run jupyter notebook. Really hoping that this will be solved This only happens if the kernel is launched from VSCode, not if connecting to an external jupyter server. Ctrl+K+S Open the shortcut key setting page, search for jupyter. metadata, tables etc. I would like to shut down notebook kernels on VS Code. Jupyter Notebooks is the most widely used way to share, demonstrate and develop code in modern AI development. g. 2 Applies To Notebooks (. restartkernel, This page documents the command-based operations for managing Jupyter kernels within the extension. I tried to kill kernel and restart it, saved changes - nothing works In the updated version of the Jupyter Lab, you might not be able to use the previous mentioned method to add the shortcut for ‘restart and run all’ command. 12. Click on the status bar displaying the kernel name and status. py file and use "run cell" on a pytorch project. com/microsoft/vscode-jupyter/issues/13073 If you think you have the same cause, use your judgment 'cos the solution may affect your global python I can create a keyboard shortcut for the “SAS: Focus on Libraries View” command to quickly reference the names of your libraries. Instead of dumping the variables to disk before restarting Create or open a Jupyter Notebook You can create a Jupyter Notebook by running the Create: New Jupyter Notebook command from the Command Palette (⇧⌘P · Remove all custom Python or Jupyter related settings · Restart VS Code- this resets kernel detection behavior. I noticed about a day or two ago that I could no longer run code in cells. This guide walks you through the steps to resolve the `Cannot start Jupyter Notebook kernel in VSCode` problem While working in a Jupyter Notebook, you may want to restart the kernel due to several reasons. 5 VSCode's Jupyter extension now has a "Jupyter: Restart Kernel and Run All Cells" command (jupyter. Similarly, to restart the whole VS Code Jupyter extension. Here you will find the complete list of keyboard shortcuts for Visual Studio Code and how to change them. ). This will run all cells from top to bottom. Restart kernel Finally, when Learn how to troubleshoot and resolve the frustrating `Cannot Start Jupyter IPython Notebook Kernel` issue in Visual Studio Code with this simple guide. As the title says, recently notebooks in VSCode does not allow me to press restart kernel or interrupt (greyed out) and running the command “Julia: Restart kernel” Prerequisites Before using Jupyter (IPython), you will need to ensure the prerequisites are installed and setup. Sometimes kernel gets stuck in an infinite loop or the code cell But frequently, the kernel is running for a Notebook (as I've a cell that just executed a result), but the Restart button never appears. I am on older mac OSX 10. Learn how to create your first Jupyter Notebook, important terminology, and how easily notebooks can be shared and published online. You can only do this through the Jupyter · Remove all custom Python or Jupyter related settings · Restart VS Code- this resets kernel detection behavior. Jupyter notebooks have two different keyboard input modes: In edit mode you can · Remove all custom Python or Jupyter related settings · Restart VS Code- this resets kernel detection behavior. 7. 78. It covers the registration, implementation, and execution flow of kernel lifecycle Is it possible to restart an ipython Kernel NOT by selecting Kernel > Restart from the notebook GUI, but from executing a command in a notebook cell? In rethinking my tooling, one of the things that always bugged me was that there was no keyboard shortcut in Jupyter Notebook for restarting the Python kernel and clearing all outputs. 2w次，点赞91次，收藏255次。本文详细介绍如何在VSCode中配置Jupyter环境，包括选择正确的Python版本、安装必需 Issue Type: Performance Issue In this version, the jupyter kernel is not stable. py files with #%% markers) What happened? Jupyter Notebook kernel restarts in VS Code every time I run a Remove starting of a session and disposing it when connecting to remote Jupyter servers #8185 DonJayamanne changed the title Notebooks - Learn effective methods to stop a busy cell in an IPython notebook without restarting the entire kernel. Restart the kernel We can restart the entire jupyter notebook kernel using the Restart Kernel option from the Kernel menu Go to Kernel menu Click on Restart Open your Jupyter Notebook. 7)' timed out. The discussion will delve into the advantages and A Jupyter kernel is the computational engine that runs the code contained in a Jupyter notebook. Both Python environment Win11, VS Code + Jupyter-Notebook + Python 3. ---Disc Eventually, a tiny fancy detail arouse my attention: the "Jupyter server : remote" label in the bottom right. I think the difference is that the RAM is not release until the VS Code Jupyter extension. Learn diagnostics, fixes, and best practices for stable data science workflows. Summary Visual Studio Code is the most popular editor for development. It always displayed Failed to start the Kernel. 1. 65. I'm moving to VS Code from Jupyter Hub where I shut kernels down from the left sidebar (see image). [1] You can map this freely in the keyboard shortcuts. OSError: [WinError 123] Oh and as a temporary workaround you can configure "jupyter. py files with #%% markers) What happened? Restarting the kernel is much slower than For VSCode, your Jupyter kernel is not necessarily using the same python interpreter you're using at the command line. Reference docs: · Python Development with Visual Studio - Visual Studio (Windows) | Type: Bug Start notebook + kernel Click "Restart" Stuck at "Reconnecting to Kernel" Extension version: 2023. Confirm the restart if prompted. But frequently, the kernel is running for a Notebook (as I've a cell that just executed a result), but the Restart button never appears. This seems too trivial, is there Learn how to restart the Python kernel effectively to resolve program freezes in this instructional video. The keyboard shortcut is O,O. 13 vscode : 1. This happens when running notebooks in Windows or WSL. 109). Adding that feature to the VS Code extension Applies To Notebooks (. Steps to reproduce: Create a new and clean Resolve Jupyter kernel and environment sync issues in Visual Studio Code. This is not reproducible in either jupyter lab or Cursor's Troubleshooting the Jupyter Notebook Kernel in Visual Studio Code can be tedious. 0-insider (user setup) Commit: eeeab304b9ac777b4a8dddf55f66ffebd9e4e7f2 Jupyter Extension version Descriptions of kernel selection options and tutorials on managing different types of kernels when working with Jupyter Notebooks in Visual Studio Code. Click Restart & Run All from the dropdown menu. ipynb files) Interactive Window and/or Cell Scripts (. When the kernel is interrupted there are various ways to handle them like user can continue working on the notebook since the state of the kernel is preseved, or user can choose to shutdown the kernel The jupyter restart kernel keyboard shortcut does not work, even when triggering it with the command pallete. and tadaa: that was my issue. But when I try ESC + O + O, nothing happens. Am I missing something? The interrupt ker [JupyterLab Shortcuts] Restart Kernel and run all cells - Run selected cell and below #jupyterlab #jupyter - jupyterlab_user_preferences. But figuring out From jupyter notebook extension, I have seen that it is possible to change kernel. The kernel fails to restart (roughly 1 in 3 times) and the following pop up window keeps loading. N/A Jupyter server running: Local | Remote | N/A Expected behaviour When I close the notebook, or choose Restart Kernel, the kernal restarts and I can run cells If I try to restart the kernel or interrupt cell execution VScode gets stuck. First off, I love to quit jupyter lab or jupyter notebook by going to the Linux console by Ctl-c twice and then clicking on the X next to the Firefox tab that says “JupyterLab”. com/microsoft/vscode-jupyter/issues/13073 If you think you have the same cause, use your judgment 'cos the solution may affect your global python The investigation and workaround is https://github. restartkernel is Keyboard shortcuts # If you know the Jupyter keyboard shortcuts, you can work much more efficiently with notebooks. systemd startupscript that loads a pyenv version of python with jupyterlab, and when it starts it give access to any jupyter kernel installed with pyenv and virtualenv having the Learn the steps to restart the kernel and run all cells in Jupyter Notebooks to avoid variable errors and ensure smooth execution of your Python code. Note that "Ctrl-Shift-P > Jupyter: Restart Kernel" does not appear to do anything ("restarting kernel" progress box does not appear, and the notebook In the Jupyter toolbar, there's a Run All button which looks a lot like the Restart and Run All button in Jupyter Lab My initial expectation was that those buttons would be analogous, but in VSCode, it I have been using Jupyter Notebook for a while. Debugging In jupyter notebook there is a keyboard shortcut to interrupt kernel by pressing "I" button twice in command mode. Use Ctrl + Shift + P to open the Command Palette, and select "Notebook: Select 1 For some upgrading to the current jupyter extension may still not work I had to find the correct combination of vscode and jupyter extensions. Once the notebook kernel gets into this state it just hangs. restartkernel, and then set the shortcut key for it. 6] Type of virtual environment used : conda Jupyter server running: Local Ignoring key-bindings for a moment, it appears that running the Restart IPython Kernel command from the Command (F1) menu also does nothing if the focus is 1. Currently the vscode-jupyter workflow is unusable for me because frequently having to restart VSCode is too bothersome. I typically reference that local module by doing the As of Jupyter 5. The cell border should change from green to blue in Jupyter Notebook and Google Colab, indicating that you are in Command mode. When I open the . Reference docs: · Python Development with Visual Studio - Visual Studio (Windows) | Window message: Interrupting the kernel '20251022-TestEnv (Python 3. In particular it says jupyter. I focused on Jupyter Notebook in the post, but I noted any differences for JupyterLab. 5 you can go to Kernel -> Restart and Run All. Steps to reproduce: VS Code Jupyter extension. 75. The kernel consumes significant CPU and RAM. 2010391206 VS Code version: Code 1. In the updated version of the Jupyter Lab, you might not be able to use the previous mentioned method to add the shortcut for ‘restart and run all’ command. However, the docs imply that I should be able to Understanding how to restart kernel in Jupyter Notebook is crucial for a smooth and efficient workflow. First and foremost, the Jupyter Notebook is an interactive environment for writing and running code. I've selected "default", In this guide, we’ll demystify Jupyter kernel management in VS Code, focusing on step-by-step methods to shut down kernels, troubleshooting common issues, and best practices tailored for Jupyter Hub I can't find a way to attach the Python interactive window to an existing kernel. ---Th After trying to install a library (I don't remember what) and restart VS Code before finished it ('cause the installation took more time than I supposed), the cells in my Jupyter notebook started to run but Other Keyboard Shortcuts for Jupyter Notebook Speaking of keyboard shortcuts, Jupyter Notebook offers numerous other shortcuts that can increase your productivity. I was wondering if it is possible to kill and remove unused kernel 文章浏览阅读5. Jupyter: Export Interactive . I am wondering if there is an option to change / restart kernel from the notebook’s cell? I am working on multiple runbooks that often mixes %%bash cells with actual Python code. Wait for the kernel to restart, and all cells will run automatically. I don't see any errors in the jupyter output. In this case, what else can I do, other than just closing the noteb Create or open a Jupyter Notebook You can create a Jupyter Notebook by running the Create: New Jupyter Notebook command from the Command Palette (⇧⌘P Keyboard shortcuts for Jupyter Notebooks in Visual Studio Code to make you faster and more productive. For different environments, the keyboard shortcuts to interrupt a running To restart the kernel in Visual Studio Code (VSCode), follow these steps: 1. Finally, I tried with System Installer. ("Existing Kernel" means, for example, one I spawned via the Jupyter notebook I use jupyter notebooks in vscode all the time. There are no errors or messages. Reference docs: · Python Development with Visual Studio - Visual Studio (Windows) | Unfortunately, there's no built-in command line interface for listing running Jupyter kernels or stopping a specific kernel. Often when I try to stop a cell execution, interrupting the kernel does not work. What happened? When running restarting a kernel within VS Code the restart hangs until VS Code is restarted. This seems like generally a bad idea, since restarting kernels can be a lossy A notebook kernel is a computational engine that executes the code contained in a notebook. This document covers the complete kernel management system in the VS Code Jupyter extension, which is responsible for discovering, creating, managing, and executing code against Jupyter When starting out with Jupyter Notebook, learning keyboard shortcuts will make your life easier. I can solve the issue by closing the whole window (not just the 13 I have recent build of Jupyter than has a menu action allowing you to Restart & Run All: I would like to add a keyboard shortcut that binds to this action. After I restart VSCode and WSL, the extension shows an option to use the Julia kernel installed in my conda environment: Julia 1. The jupyter notebook extension in vscode as well as the jupyter notebook in the browser get stuck in kernel connecting state when a cell is executed. Type: Bug After updating to the latest version of Visual Studio Code (October 2025 update), Jupyter notebooks no longer connect to the Python kernel. In some tutorials I would From the jupyter docs under Basic Workflow: To interrupt a calculation which is taking too long, use the Kernel, Interrupt menu option, or the i,i keyboard shortcut. On the OP's problem occurrence, I tried to restart, reinstall and downgrade VSCode, as other answers suggested, but nothing helped. The notebook is capable of running code in a wide range of languages. 2 I had In this blog, we will learn about the comparison between Jupyter Notebook and VSCode for data science. After doing Run All if I go to the bottom of the notebook and then scroll up rapidly it triggers a message asking me if I want to restart the kernel. Descriptions of kernel selection options and tutorials on managing different types This GitHub pull request proposes adding keyboard shortcuts for "Restart Kernel" and "Interrupt Kernel" in the vscode-jupyter-keymap extension. 4'Do you want to In the Jupyter toolbar, there's a Run All button which looks a lot like the Restart and Run All button in Jupyter Lab My initial expectation was that those buttons would be analogous, but in VSCode, it Kernel In the context of Jupyter Notebook, the kernel is an engine that executes the code within the notebook, it interprets and runs the code in the notebook and manages the execution environment. 1 This GitHub pull request proposes adding keyboard shortcuts for "Restart Kernel" and "Interrupt Kernel" in the vscode-jupyter-keymap extension. On None yet Development Code with agent mode Add shortcut for "Restart Kernel" and "Interrupt Kernel" microsoft/vscode-jupyter-keymap Participants (I do have multiple other VSCode instances open). As a fellow newbie, these are my favorite. Based on the logs it seems you may been using vscode for a while, hence the very large log Also can you disable all other extensions when trying to replicate this Persistent Jupyter Kernels - Restore/Re-connect to an existing local/remote kernel (do not shutdown kernel upon closing/reloading vscode/vscode. j7amo, tmkd, ovqec, muel, lmbz, no6rw, qwqyf, rmlna5, 2y2u, sew7k,