=============================================
 EIN -- Emacs IPython Notebook |build-status|
=============================================

  --- or **E**\ IN **I**\ s not only for **N**\ otebooks.

EIN works with IPython 2.x_, 3.x_, and Juptyer_! Note that remote and password
protected logins are working with IPython 3.x, but have not been tested with
Jupyter.

.. note:: The code has been stable enough for my day to day work, but there are
          no guarantees for the safety for your notebook data.  Please make sure
          that you back-up and back-up often!

.. note:: The code for testing EIN is horribly broken, but I regularly hand
          check the code running against IPython's suite of sample
          notebooks. It's a worse-is-better solution to problem requiring a
          time-consuming solution.
   
.. |build-status|
   image:: https://secure.travis-ci.org/millejoh/emacs-ipython-notebook.png?branch=master
   :target: http://travis-ci.org/millejoh/emacs-ipython-notebook
   :alt: Build Status

.. _2.x: http://ipython.org/ipython-doc/2/index.html
.. _3.x: http://ipython.org/ipython-doc/3/index.html
.. _Jupyter: http://jupyter.org


Check out ob-ipython_!
======================

EIN unfortunately has limited integration_ with org-mode, but if you
are looking to use the IPython kernel with your org files you should
check out ob-ipython_ (available on MELPA).

.. _integration: http://millejoh.github.io/emacs-ipython-notebook/#org-mode-integration
.. _ob-ipython: https://github.com/gregsexton/ob-ipython/

Screenshot
==========

.. figure:: https://github.com/millejoh/emacs-ipython-notebook/wiki/images/demo_plotnormal.PNG
   :alt: Plotting in Emacs IPython Notebook

See `more <https://github.com/millejoh/emacs-ipython-notebook/wiki/Screenshots>`_!

Features
========

The Emacs IPython Notebook (EIN) provides a client for IPython v2.x and 3.x
(i.e. Jupyter) notebooks and an integrated REPL (like SLIME_) in Emacs.  EIN
makes notebook editing very powerful by allowing you to use any Emacs features,
it also expose IPython features such as code evaluation, object inspection and
code completion to the Emacs side.  These features can be accessed anywhere in
Emacs and improve Python code editing and reading in Emacs.

.. _SLIME: http://common-lisp.net/project/slime/

Highlighted features:

* Copy/paste cells, even to/from different notebooks.
* Console integration: You can easily connect to a kernel via the console
  application.  This enables you to start debugging in the same kernel.  It is
  even possible to connect to a console over ssh.
* An IPython kernel can be "connected" to any buffer.  This enables you to
  evaluate a buffer or buffer region using the same kernel as the notebook.
  Notebook goodies such as tooltip help, help browser and code completion are
  available in these buffers.
* Jump to definition (go to the definition by hitting ``M-.`` over an object).

Other notebook features:

* Inline images
* Auto/manual-completion
* Popup (tooltip) help
* Syntax highlighting in each cell types (Python/Markdown)
* Help browser (opens when executing ``function?``)
* Traceback viewer

Links:

* `Online Documentation
  <http://millejoh.github.io/emacs-ipython-notebook/>`_

* `Wiki
  <https://github.com/millejoh/emacs-ipython-notebook/wiki>`_

  + `Screenshots
    <https://github.com/millejoh/emacs-ipython-notebook/wiki/Screenshots>`_
  + `Tips
    <https://github.com/millejoh/emacs-ipython-notebook/wiki/Tips>`_

* `Downloads
  <https://github.com/millejoh/emacs-ipython-notebook/tags>`_
* `Repository at GitHub
  <https://github.com/millejoh/emacs-ipython-notebook>`_
* `Issue Tracker at GitHub
  <https://github.com/millejoh/emacs-ipython-notebook/issues>`_


Quick try
=========

This is a quick and clean way to try EIN separately from your Emacs
setting.  If you want to try EIN but think preparing all the
requirements is too much, try this!::

   git clone git://github.com/millejoh/emacs-ipython-notebook.git
   cd emacs-ipython-notebook/
   lisp/zeroein.el

This will launch a new Emacs instance.

You can use environment variable ``EMACS`` to control Emacs executable
to use.::

   EMACS=emacs-snapshot lisp/zeroein.el

The above command requires /bin/sh.  If the above command does not work
(e.g., you are using MS Windows), try the following command::

  emacs -Q -l lisp/zeroein.el


Requirements
============

* IPython_ 2.0 or higher.
* Tornado_ 4.0.2 or higher.
* `websocket.el`_ 1.3
* `request.el`_ >= 0.2
* (optional) mumamo_ developmental version:
  It will be automatically loaded when it is on the path.
  The official way to setup path is to load nXhtml_.
* (optional) markdown-mode
* (optional) python-mode:
  It should work with either python.el or python-mode.el.
  Fabian Gallina's `python.el`_ is required to use
  ``ein:console-open`` command.
* (optional) `auto-complete.el`_
  You need to configure subpackage ``ein-ac`` to enable
  this feature.
* (optional) `smartrep.el`_:
  This package enables you to omit typing prefix keys (e.g.,
  ``C-c C-n C-n C-n ...`` instead of ``C-c C-n C-c C-n C-c C-n ...``).
  You need to configure subpackage ``ein-smartrep`` to enable
  this feature.
* (optional) `jedi.el`_:
  Python auto-completion for emacs using `jedi`_. In your
  emacs initialization file add

  ``(add-hook 'ein:connect-mode-hook 'ein:jedi-setup)``
  
Also, EIN heavily relies on standard Emacs libraries including EWOC,
EIEIO and json.el.  EIN is currently tested against Emacs 23.3 and 24.3.
It is known to work in Emacs 23.2, 24.1 and 24.2.

.. _IPython: http://ipython.org/
.. _Tornado: http://www.tornadoweb.org/en/stable/
.. _websocket.el: https://github.com/ahyatt/emacs-websocket
.. _request.el: https://github.com/tkf/emacs-request
.. _mumamo: http://www.emacswiki.org/emacs/MuMaMo
.. _nXhtml: http://ourcomments.org/Emacs/nXhtml/doc/nxhtml.html
.. _python.el: https://github.com/fgallina/python.el
.. _auto-complete.el: http://cx4a.org/software/auto-complete/
.. _smartrep.el: https://github.com/myuhe/smartrep.el
.. _jedi.el: https://github.com/tkf/emacs-jedi
.. _jedi: https://github.com/davidhalter/jedi

Usage
=====

1. Install module.
   Put Emacs lisp ``ein*.el`` files and Python file ``ein.py`` in your
   load path.  See `online documentation`_ for more information.

2. Require module::

     (require 'ein)

3. Start `IPython notebook server`_.

4. Hit ``M-x ein:notebooklist-open`` to open notebook list.

.. _`IPython notebook server`:
   http://ipython.org/ipython-doc/stable/interactive/htmlnotebook.html


Subpackages
-----------

Enable `auto-complete.el`_::

   (setq ein:use-auto-complete t)
   ;; Or, to enable "superpack" (a little bit hacky improvements):
   ;; (setq ein:use-auto-complete-superpack t)

Enable `smartrep.el`_::

   (setq ein:use-smartrep t)


Keybindings - Notebook
-------------------

.. (ein:dev-insert-mode-map "\\{ein:notebook-mode-map}")

::

   key             binding
   ---             -------

   C-c             Prefix Command
   C-x             Prefix Command
   ESC             Prefix Command
   .               ein:notebook-complete-dot
   C-:             ein:shared-output-eval-string
   <C-down>        ein:worksheet-goto-next-input
   <C-up>          ein:worksheet-goto-prev-input
   <M-S-return>    ein:worksheet-execute-cell-and-insert-below
   <M-down>        ein:worksheet-move-cell-down
   <M-up>          ein:worksheet-move-cell-up

   C-x C-s         ein:notebook-save-notebook-command
   C-x C-w         ein:notebook-rename-command

   M-RET           ein:worksheet-execute-cell-and-goto-next
   M-,             ein:pytools-jump-back-command
   M-.             ein:pytools-jump-to-source-command
   M-n             ein:worksheet-next-input-history
   M-p             ein:worksheet-previous-input-history

   C-c C-a         ein:worksheet-insert-cell-above
   C-c C-b         ein:worksheet-insert-cell-below
   C-c C-c         ein:worksheet-execute-cell
   C-c C-e         ein:worksheet-toggle-output
   C-c C-f         ein:pytools-request-tooltip-or-help
   C-c TAB         ein:completer-complete
   C-c C-k         ein:worksheet-kill-cell
   C-c C-l         ein:worksheet-clear-output
   C-c RET         ein:worksheet-merge-cell
   C-c C-n         ein:worksheet-goto-next-input
   C-c C-o         ein:console-open
   C-c C-p         ein:worksheet-goto-prev-input
   C-c C-q         ein:notebook-kill-kernel-then-close-command
   C-c C-r         ein:notebook-restart-kernel-command
   C-c C-s         ein:worksheet-split-cell-at-point
   C-c C-t         ein:worksheet-toggle-cell-type
   C-c C-u         ein:worksheet-change-cell-type
   C-c C-v         ein:worksheet-set-output-visibility-all
   C-c C-w         ein:worksheet-copy-cell
   C-c C-x         ein:tb-show
   C-c C-y         ein:worksheet-yank-cell
   C-c C-z         ein:notebook-kernel-interrupt-command
   C-c ESC         Prefix Command
   C-c !           ein:worksheet-rename-sheet
   C-c +           ein:notebook-worksheet-insert-next
   C-c -           ein:notebook-worksheet-delete
   C-c 1           ein:notebook-worksheet-open-1th
   C-c 2           ein:notebook-worksheet-open-2th
   C-c 3           ein:notebook-worksheet-open-3th
   C-c 4           ein:notebook-worksheet-open-4th
   C-c 5           ein:notebook-worksheet-open-5th
   C-c 6           ein:notebook-worksheet-open-6th
   C-c 7           ein:notebook-worksheet-open-7th
   C-c 8           ein:notebook-worksheet-open-8th
   C-c 9           ein:notebook-worksheet-open-last
   C-c {           ein:notebook-worksheet-open-prev-or-last
   C-c }           ein:notebook-worksheet-open-next-or-first
   C-c C-S-l       ein:worksheet-clear-all-output
   C-c C-#         ein:notebook-close
   C-c C-'         ein:worksheet-turn-on-autoexec
   C-c C-,         ein:pytools-jump-back-command
   C-c C-.         ein:pytools-jump-to-source-command
   C-c C-/         ein:notebook-scratchsheet-open
   C-c C-;         ein:shared-output-show-code-cell-at-point
   C-c <down>      ein:worksheet-move-cell-down
   C-c <up>        ein:worksheet-move-cell-up

   C-c M-+         ein:notebook-worksheet-insert-prev
   C-c M-w         ein:worksheet-copy-cell
   C-c M-{         ein:notebook-worksheet-move-prev
   C-c M-}         ein:notebook-worksheet-move-next

.. // KEYS END //


Keybindings - Connect
------------------

In Python (or any other) buffer, you can connect to any open notebook
by ``M-x ein:connect-to-notebook`` then choose appropriate notebook.
After connecting to the notebook (and hence its kernel), the following
commands are available.

.. (ein:dev-insert-mode-map "\\{ein:connect-mode-map}")

::

   key             binding
   ---             -------

   C-c             Prefix Command
   ESC             Prefix Command
   .               ein:completer-dot-complete
   C-:             ein:shared-output-eval-string

   M-,             ein:pytools-jump-back-command
   M-.             ein:pytools-jump-to-source-command

   C-c C-a         ein:connect-toggle-autoexec
   C-c C-c         ein:connect-run-or-eval-buffer
   C-c C-f         ein:pytools-request-tooltip-or-help
   C-c TAB         ein:completer-complete
   C-c C-l         ein:connect-reload-buffer
   C-c C-o         ein:console-open
   C-c C-r         ein:connect-eval-region
   C-c C-x         ein:tb-show
   C-c C-z         ein:connect-pop-to-notebook
   C-c C-,         ein:pytools-jump-back-command
   C-c C-.         ein:pytools-jump-to-source-command
   C-c C-/         ein:notebook-scratchsheet-open

.. // KEYS END //


License
=======

Emacs IPython Notebook is licensed under GPL v3.
See COPYING for details.