My custom Jupyter shortcuts. 😊

(1) While a cell is selected (blue outline in Command Mode, green outline in Edit Mode), Use Ctrl+E to open the cell in Sublime. (Save and close the file when you're done editing.)

(2) Then use Ctrl+Shift+E to update the cell with the contents saved in Sublime. (Ctrl+Shift+E will do nothing if the cell has never been edited in Sublime.)

(3) Ctrl+O will copy the output of a cell. Works in Edit or Command mode.

• Only tested on Chrome. Firefox may complain about permission issues because this shortcut uses document.execCommand('cut') to implement copying.

Starting at line 151 in the file custom.js I added the following lines:

Edit.add_shortcut('ctrl-b', 'jupyter-notebook:run-cell');
Command.add_shortcut('ctrl-b', 'jupyter-notebook:run-cell');
Edit.remove_shortcut('ctrl-enter');
Edit.add_shortcut('alt-w', 'jupyter-notebook:enter-command-mode');
Command.add_shortcut('alt-w', 'jupyter-notebook:enter-edit-mode');

Basically:

• Ctrl+B to run the cell (edit or command mode)

• Unbind Ctrl+Enter while in edit mode

• Alt+W to enter and exit edit mode.

If you don't want one of them just delete the line, and nothing bad will happen.