In addition to watching the values of variables in the Jupyter Variables tool window, you can preview them in the editor. You can click the link to the right of the variable to preview its values in the tabular form. When you execute your notebook, you can preview variables in the Jupyter Variables tool window. This functionality is available only for local Jupyter server kernels. View variables Jupyter Variables tool window When you stop the server and change the server or kernel, you have to execute all cells with dependencies again, because execution results are valid for the current server session only. To execute all code cells in your notebook, click on the notebook toolbar. In case of any errors, expand the Traceback node to view the complete error message. It includes the execution duration, as well as the date and time when the execution finished. In the lower left corner of the cell, you can find the information about the last cell execution. When the execution is done, the cell remains in the edit mode, so that you can modify it, if needed, and keep experimenting. If a cell relies on some code in another cell, that cell should be executed first. When executing one cell at a time, mind code dependencies. Shift+Enter: Runs the current cell and selects the cell below it. Use the following smart shortcuts to quickly run the code cells: Note that when you work with local notebooks, you don’t need to launch any Jupyter server in advance: just execute any cell and the server will be launched. You can execute the code of notebook cells in many ways using the icons on the notebook toolbar and cell toolbars, commands of the code cell context menu (right-click the code cell to open it), and the Run commands of the main menu. Run and debug Jupyter notebook code cells
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