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The IPython notebook allows extending the html frontend functionality (i.e. what you do in the Browser) using extensions written in Javascript. This repository contains a collection of such extensions. The maturity of the provided extensions may vary, please create an issue if you encounter any problems.

The repository is organized in several directories:

File or Directory	Description
publishing/nbconvert-button	Add a toolbar button to call nbconvert --to html for current the notebook (deprecated)
publishing/printview-button	Add a toolbar button to call nbconvert --to html for current the notebook and display html in new browser tab (deprecated)
publishing/printviewmenu-button	Add a toolbar button to call menu entry File->Print Preview directly (V2 only)
publishing/gist_it	Publish notebook as a gist
publishing/nbviewer_theme
slidemode	Make slide creation for reveal.js easier
styling/css_selector
styling/zenmode
testing	Alpha-level extensions, not for general use
usability/breakpoints	Allow setting of breakpoints to stop execution of notebook cells
usability/codefolding	Fold code blocks using Alt-F or clicking on gutter
usability/comment-uncomment.js	Toggle comments in selected lines using Alt-C
usability/linenumbers.js	Allow codecells to be set read-only, so no editing is possible
usability/read-only.js	Allow codecells to be set read-only, so no editing is possible
usability/shift-tab.js	Assign "shift-tab" key to dedent tabulator
usability/chrome_clipboard	Add system clipboard actions with crome
usability/drag-and-drop	Add drag&drop of images into the notebook
usability/aspell	Spellchecker using aspell

General installation instruction

Extensions can be installed by copying the corresponding javascript extension and it's accompanying files to the static/custom directory of your IPython profile and adding it to custom.js.

Finding your profile directory

You can find out your profile directory directly from the commandline

ipython locate

Or by starting the IPython notebook and executing

import IPython
ip=IPython.get_ipython()
ip.config.ProfileDir 

This will give you something like {'location': u'C:\\Users\\me\\.ipython\\profile_dev'} or for Unix {'location': u'/home/you/.ipython/profile_default'}

So your path to copy the extensions into will be /home/you/.ipython/profile_default/static/custom

Adding the extension

Next, you copy the extension file or complete directory to the custom directory.

Finally, you have to add the extensions to the file custom.js in order to load them. This can be done best using the require command:

require(['/static/custom/styling/css-selector/main.js']) 

Your custom.js file might now look like this:

$([IPython.events]).on('app_initialized.NotebookApp', function(){
    require(['/static/custom/clean_start.js']);
    require(['/static/custom/styling/css-selector/main.js']);
})

Troubleshooting

If the extension does not work, here is how you can check what is wrong:

1. Verify your custom.js is the one the IPython notebook is seeing, by opening it in the browser:

http://127.0.0.1:8888/static/custom/custom.js

2. Verify the extension can be loaded by the IPython notebook, for example:

http://127.0.0.1:8888//static/custom/styling/css-selector/main.js

3. Check for error messages in the Javascipt console.