jupyter lab - Can't select multiple cells in Jupyterlab notebook

Question

I cannot select multiple (adjacent) cells (in order to e.g. delete them)

I have tried

• Shift +up/down arrows
• Shift + J/K
• Both of the above in both Edit mode and Command mode
• Running a javascript keyboard tester to make sure shift J/K not being intercepted
• Windows on-screen keyboard for shift +up/down/J/K
• Online searching for same symptoms

Question: any ideas why this is happening and how to resolve it or how to perform a more detailed investigation/diagnosis?

Environment: Windows-10 Home 64-bit 20H2; Jupyterlab 3.0.5; Python 3.8.6 | packaged by conda-forge | (default, Dec 26 2020, 04:30:06) [MSC v.1916 64 bit (AMD64)]; IPython 7.18.1

Browsers tested Chrome, Opera, Edge (Chrome has security extensions, all disabled/allowing localhost, but Edge is vanilla and behaved exactly the same)

Starting jupyterlab from Anaconda Navigator launcher

question from:https://stackoverflow.com/questions/65897983/cant-select-multiple-cells-in-jupyterlab-notebook

Answer 1

try to open the jupyter-lab from the cmd, type this command :

jupyter notebook

it will open the same lab you can open via anaconda. then all of shortcuts will work as usual