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Hacking Jupyter's atmosphere

Project description

|image0| Ganymede
=================

.. |image0| image:: https://bitbucket.org/userzimmermann/ganymede/raw/default/ganymede/static/ganymede.svg



|image0|

.. |image0| image:: https://travis-ci.org/userzimmermann/ganymede.svg
:target: https://travis-ci.org/userzimmermann/ganymede



- https://bitbucket.org/userzimmermann/ganymede
- https://github.com/userzimmermann/ganymede
- https://www.openhub.net/p/jupyter-ganymede



Hacking Jupyter's atmosphere
----------------------------



Have you also wondered where the fourth Galilean moon in
`Jupyter <http://jupyter.org>`__'s logo has gone? Well, it is told that
after many centuries of Ganymede's absence from Mount Olympus, Zeus felt
a deep and painful longing. So he sent out his eagle again to find
Ganymede and bring him back. But Ganymede always wanted to be more than
just a servant for the pleasure of the gods. He turned to Jupyter with
an offer. If Jupyter grant him shelter in his giant atmosphere then
Ganymede would build him a new temple. A temple to attract a whole new
generation of worshippers. Jupyter accepted...



Currently, the temple can only be visited from Python. There will soon
be other ways to get there. Just use `pip <http://pip-installer.org>`__
to automatically install the latest
`gate <https://pypi.python.org/pypi/ganymede>`__ with its dependencies
from `PyPI <https://pypi.python.org>`__:

::

pip install ganymede



It can also be visited in development mode, directly from Ganymede's
repository. The additional development dependencies are automatically
resolved by running the following commands in the repository's root
directory:

::

pip install -r requirements.txt
pip install -r requirements.dev.txt
pip install -e .

You also need an installed `CoffeeScript <http://coffeescript.org>`__
compiler for development mode.



Then open an IPython notebook in Jupyter's web interface and:


.. code:: python


%load_ext ganymede


You will see the header area with menu and tool bar disappear and the
notebook area turn into a console with three handle bars at the bottom,
the outer two for resizing and the inner one for combined vertical
resizing and horizontal moving. A simple click on the latter toggles the
console's visibility.



At the top left window corner you will see Ganymede's logo. Just grab
and move it around. It will reveal the new tool and menu area. A simple
click toggles slim mode, which only shows the tools.



You might wonder what's the essential advantage of these features. It
will make more sense when you use the dynamic free background space to
place some cell outputs there. Just grab an ``Out[*]`` prompt area and
drag it around. This will undock the output from the console and you can
drop it anywhere on the background. That won't change the cell's DOM
hierarchy, so the output stays logically connected to the cell input and
re-evaluating the cell will also update the undocked output.



You can go back to the default Jupyter interface any time by deleting
the ``%load_ext ganymede`` cell or just its output. You can also
``%reload_ext ganymede`` at any time. Size, positions and state of the
console, the menu area and the output cells are stored as notebook and
cell metadata respectively.



Some of Jupyter's control elements are hidden, like the cell format and
cell toolbar select boxes. They still need to find their new place,
along with these additional features coming soon:

- Menu button in slim mode tool bar
- Redocking of cell outputs to the console
- Visual indicators for cell inputs on hovering their undocked outputs
and vice versa and auto console scrolling to input
- Switchable virtual background screens for undocked outputs with
selection bar in menu area
- A %terminal magic to embed Jupyter's remote terminals in notebooks
- Tabbed multi-notebook console and ability to mix undocked cell
outputs from different notebooks and kernels

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