Atom/Sublime like Multiple selections in Jupyter

Question

How can I select matching keywords in a Jupyter notebook via a keyboard shortcut? For example, in the Atom/Sublime editor I can hit cmd + D on a mac (or Ctrl

Answer 1

The above solution worked for me, but I found that it had the undesirable effect of entering a "tab" character when I hit enter. Here is the associated GitHub issue: https://github.com/jupyter/notebook/issues/4769#issuecomment-511935127

Per that post, I found that this solution gives the right ctrl + d behavior, and keeps tabs-as-spaces.

require(["codemirror/keymap/sublime", "notebook/js/cell", "base/js/namespace"],
    function(sublime_keymap, cell, IPython) {
        // setTimeout(function(){ // uncomment line to fake race-condition
        cell.Cell.options_default.cm_config.keyMap = 'sublime';
        var cells = IPython.notebook.get_cells();
        for(var c=0; c< cells.length ; c++){
            cells[c].code_mirror.setOption('keyMap', 'sublime');
        }
        // }, 1000)// uncomment  line to fake race condition 
    } 
);

Answer 2

Add custom.js to

C:\Users\username\.jupyter\custom      # for Windows and 
~/.jupyter/custom/                     # for Mac 

with content

require(["codemirror/keymap/sublime", "notebook/js/cell", "base/js/namespace"],
    function(sublime_keymap, cell, IPython) {
        cell.Cell.options_default.cm_config.keyMap = 'sublime';
        cell.Cell.options_default.cm_config.extraKeys["Ctrl-Enter"] = function(cm) {}
        var cells = IPython.notebook.get_cells();
        for(var cl=0; cl< cells.length ; cl++){
            cells[cl].code_mirror.setOption('keyMap', 'sublime');
            cells[cl].code_mirror.setOption("extraKeys", {
                "Ctrl-Enter": function(cm) {}
            });
        }
    } 
);

and restart jupyter. Now Ctrl+D should work like it does in Sublime.

You can see that Ctrl-Enter functionality is disabled as it would be very convenient to run current cell rather than creating new line for most users. You can choose to have that functionality by commenting that line out.

You can disable other key config that you don't want in a similar way.