IPython 2.0 Notebook: where has the "Add Cell Above" button gone, and how do I get it back?

Question

I upgraded to IPython 2.0 today.

Alot of changes seem good, but the button to insert a new cell, above/below seems to be gone. The option is still in the menu, and I believe the keyboard short cut works. But the button is gone.

I'm sure there is a way to turn it back on, but the documentation for the new version doesn't seem super complete. Possibly to turn it back on I need to adjust something in the config. Which is just python script. Maybe even tell it to insert a new element, and bind some javascript to it.

Answer 1

I ended up teaching myself some javascript to do this. You can make this change in the custom.js file. which can be found in ~/.ipython/profile_[profile name]/static/custom.

Replace it with the following:

$([IPython.events]).on('app_initialized.NotebookApp', function(){
             IPython.toolbar.add_buttons_group([
                 {
                      'label'   : 'Insert Cell Above',
                      'icon'    : 'fa-arrow-circle-o-up',
                      'callback': function () {
                                                    IPython.notebook.insert_cell_above('code');
                                                    IPython.notebook.select_prev();
                                                    IPython.notebook.focus_cell();
                      }
                 },
                 {
                      'label'   : 'Insert Cell Below',
                      'icon'    : 'fa-arrow-circle-o-down',
                      'callback': function () {
                                                    IPython.notebook.insert_cell_below('code');
                                                    IPython.notebook.select_next();
                                                    IPython.notebook.focus_cell();
                      }
                 }
                 ]);
             $('#insert_above_below').remove()
         });

If you have already modified it, then you can not replace the whole file, obviously, and should merge the appropriate parts.

The buttons will show up on the right. The single + button for below is also removed.

Answer 2

These buttons relocated to "Insert" menu. However, it is always good idea to use shortcut commands:

Ctrl+m+- (split cell)

Ctrl+m+a (insert cell above)

Ctrl+m+b (insert cell below)

If you can master them and other basic commands, it will make your notebook workflow really slick. Full list of commands can be found here.

Answer 3

as now in 5.7.4 version shortcut to create cell above is esc + a