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.. _roadmap:
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===================
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Development roadmap
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===================
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IPython is an ambitious project that is still under heavy development.
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However, we want IPython to become useful to as many people as possible, as
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quickly as possible. To help us accomplish this, we are laying out a roadmap
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of where we are headed and what needs to happen to get there. Hopefully, this
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will help the IPython developers figure out the best things to work on for
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each upcoming release.
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Work targeted to particular releases
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====================================
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Release 0.11
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------------
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* Full module and package reorganization (done).
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* Removal of the threaded shells and new implementation of GUI support
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based on ``PyOSInputHook`` (done).
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* Refactor the configuration system (done).
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* Prepare to refactor IPython's core by creating a new component and
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application system (done).
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* Start to refactor IPython's core by turning everything into configurables
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(mostly done).
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Release 0.12
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------------
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* Continue to refactor IPython's core by turning everything into configurables.
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* Merge draft html notebook (started).
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* Add two-process Terminal frontend using ZMQ architecture.
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Major areas of work
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===================
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Refactoring the main IPython core
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---------------------------------
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During the summer of 2009, we began refactoring IPython's core. The main
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thrust in this work was to make the IPython core into a set of loosely coupled
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components. The base configurable class for this is
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:class:`IPython.core.configurable.Configurable`. This section outlines the
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status of this work.
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Parts of the IPython core that have been turned into configurables:
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* The main :class:`~IPython.core.interactiveshell.InteractiveShell` class.
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* The aliases (:mod:`IPython.core.alias`).
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* History management (:mod:`IPython.core.history`).
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* Plugins (:mod:`IPython.core.plugin`).
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* The display and builtin traps (:mod:`IPython.core.display_trap` and
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:mod:`IPython.core.builtin_trap`).
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* The prefilter machinery (:mod:`IPython.core.prefilter`).
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Parts of the IPython core that still need to be Configurable:
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* Magics.
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* Prompts.
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* Tab completers.
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* Exception handling.
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* Anything else.
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Process management for :mod:`IPython.parallel`
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--------------------------------------------
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A few things need to be done to improve how processes are started
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up and managed for the parallel computing side of IPython:
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* Improve the SSH launcher so it is at least back to the levels of 0.10.2
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* We need to add support for other batch systems (LSF, Condor, etc.).
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Porting to 3.0
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==============
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Dropping 2.5 support was a major step towards working with Python 3 due to
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future syntax support in 2.6. IPython 0.11 requires 2.6 now, so 0.10.2 will
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be the last IPython release that supports Python 2.5.
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We currently have a `separate repo <https://github.com/ipython/ipython-py3k>`_
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tracking IPython development that works with Python 3. The core of IPython does
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work, but the parallel computing code in :mod:`IPython.parallel` does not yet
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work in Python 3, though the only major dependency of the parallel code, pyzmq,
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does work on Python 3.
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