Adding new stuff
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vim-plugins/bundle/jedi-vim/README.rst
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vim-plugins/bundle/jedi-vim/README.rst
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#################################################
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jedi-vim - awesome Python autocompletion with VIM
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#################################################
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.. image:: https://travis-ci.org/davidhalter/jedi-vim.png?branch=master
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:target: https://travis-ci.org/davidhalter/jedi-vim
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:alt: Travis-CI build status
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jedi-vim is a VIM binding to the autocompletion library
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`Jedi <http://github.com/davidhalter/jedi>`_.
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Here are some pictures:
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.. image:: https://github.com/davidhalter/jedi/raw/master/docs/_screenshots/screenshot_complete.png
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Completion for almost anything (Ctrl+Space).
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.. image:: https://github.com/davidhalter/jedi/raw/master/docs/_screenshots/screenshot_function.png
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Display of function/class bodies, docstrings.
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.. image:: https://github.com/davidhalter/jedi/raw/master/docs/_screenshots/screenshot_pydoc.png
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Documentation (Pydoc) support (with highlighting, Shift+k).
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There is also support for goto and renaming.
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Get the latest from `github <http://github.com/davidhalter/jedi-vim>`_.
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Documentation
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=============
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Documentation is available in your vim: ``:help jedi-vim``. You can also look
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it up `on github <http://github.com/davidhalter/jedi-vim/blob/master/doc/jedi-vim.txt>`_.
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You can read the Jedi library documentation `here <http://jedi.readthedocs.io/en/latest/>`_.
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If you want to report issues, just use the github issue tracker. In case of
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questions about the software, please use `stackoverflow
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<https://stackoverflow.com>`_ and tag your question with ``jedi-vim``.
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Contributing
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============
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We love Pull Requests! Read the instructions in ``CONTRIBUTING.md``.
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Features
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========
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The Jedi library understands most of Python's core features. From decorators to
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generators, there is broad support.
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Apart from that, jedi-vim supports the following commands
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- Completion ``<C-Space>``
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- Goto assignments ``<leader>g`` (typical goto function)
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- Goto definitions ``<leader>d`` (follow identifier as far as possible,
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includes imports and statements)
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- Show Documentation/Pydoc ``K`` (shows a popup with assignments)
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- Renaming ``<leader>r``
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- Usages ``<leader>n`` (shows all the usages of a name)
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- Open module, e.g. ``:Pyimport os`` (opens the ``os`` module)
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Installation
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============
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Requirements
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------------
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You need a VIM version that was compiled with Python 2.6 or later
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(``+python`` or ``+python3``), which is typical for most distributions on
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Linux. You can check this from within VIM using
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``:python3 import sys; print(sys.version)`` (use ``:python`` for Python 2).
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Manual installation
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-------------------
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You might want to use `pathogen <https://github.com/tpope/vim-pathogen>`_ or
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`Vundle <https://github.com/gmarik/vundle>`_ to install jedi-vim.
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The first thing you need after that is an up-to-date version of Jedi. You can
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either install it via ``pip install jedi`` or with
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``git submodule update --init`` in your jedi-vim repository.
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Example installation command using Pathogen:
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.. code-block:: sh
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cd ~/.vim/bundle/ && git clone --recursive https://github.com/davidhalter/jedi-vim.git
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Installation with your distribution
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-----------------------------------
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On Arch Linux, you can also install jedi-vim from official repositories as
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`vim-jedi <https://www.archlinux.org/packages/community/any/vim-jedi/>`__.
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It is also available on
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`Debian (≥8) <https://packages.debian.org/vim-python-jedi>`__ and
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`Ubuntu (≥14.04) <http://packages.ubuntu.com/vim-python-jedi>`__ as
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vim-python-jedi.
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On Fedora Linux, it is available as
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`vim-jedi <https://apps.fedoraproject.org/packages/vim-jedi>`__.
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Please note that this version might be quite old compared to using jedi-vim
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from Git.
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Caveats
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-------
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Note that the `python-mode <https://github.com/klen/python-mode>`_ VIM plugin seems
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to conflict with jedi-vim, therefore you should disable it before enabling
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jedi-vim.
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To enjoy the full features of jedi-vim, you should have VIM >= 7.3, compiled with
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``+conceal`` (which is not the case on some platforms, including OS X). If your VIM
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does not meet these requirements, the parameter recommendation list may not appear
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when you type an open bracket after a function name. Please read
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`the documentation <http://github.com/davidhalter/jedi-vim/blob/master/doc/jedi-vim.txt>`_
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for details.
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Settings
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========
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Jedi is by default automatically initialized. If you don't want that I suggest
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you disable the auto-initialization in your ``.vimrc``:
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.. code-block:: vim
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let g:jedi#auto_initialization = 0
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There are also some VIM options (like ``completeopt`` and key defaults) which
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are automatically initialized, but you can skip this:
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.. code-block:: vim
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let g:jedi#auto_vim_configuration = 0
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You can make jedi-vim use tabs when going to a definition etc:
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.. code-block:: vim
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let g:jedi#use_tabs_not_buffers = 1
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If you are a person who likes to use VIM-splits, you might want to put this in your ``.vimrc``:
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.. code-block:: vim
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let g:jedi#use_splits_not_buffers = "left"
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This options could be "left", "right", "top", "bottom" or "winwidth". It will decide the direction where the split open.
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Jedi automatically starts the completion, if you type a dot, e.g. ``str.``, if
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you don't want this:
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.. code-block:: vim
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let g:jedi#popup_on_dot = 0
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Jedi selects the first line of the completion menu: for a better typing-flow
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and usually saves one keypress.
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.. code-block:: vim
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let g:jedi#popup_select_first = 0
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Jedi displays function call signatures in insert mode in real-time, highlighting
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the current argument. The call signatures can be displayed as a pop-up in the
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buffer (set to 1, the default), which has the advantage of being easier to refer
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to, or in Vim's command line aligned with the function call (set to 2), which
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can improve the integrity of Vim's undo history.
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.. code-block:: vim
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let g:jedi#show_call_signatures = "1"
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Here are a few more defaults for actions, read the docs (``:help jedi-vim``) to
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get more information. If you set them to ``""``, they are not assigned.
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.. code-block:: vim
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NOTE: subject to change!
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let g:jedi#goto_command = "<leader>d"
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let g:jedi#goto_assignments_command = "<leader>g"
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let g:jedi#goto_definitions_command = ""
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let g:jedi#documentation_command = "K"
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let g:jedi#usages_command = "<leader>n"
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let g:jedi#completions_command = "<C-Space>"
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let g:jedi#rename_command = "<leader>r"
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Finally, if you don't want completion, but all the other features, use:
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.. code-block:: vim
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let g:jedi#completions_enabled = 0
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FAQ
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===
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I don't want the docstring window to popup during completion
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------------------------------------------------------------
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This depends on the ``completeopt`` option. Jedi initializes it in its
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``ftplugin``. Add the following line to your ``.vimrc`` to disable it:
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.. code-block:: vim
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autocmd FileType python setlocal completeopt-=preview
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I want <Tab> to do autocompletion
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---------------------------------
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Don't even think about changing the Jedi command to ``<Tab>``,
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use `supertab <https://github.com/ervandew/supertab>`_!
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The completion is waaay too slow!
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---------------------------------
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Completion of complex libraries (like Numpy) should only be slow the first time
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you complete it. After that, the results should be cached and very fast.
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If it's still slow, in case you've installed the python-mode VIM plugin, disable
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it. It seems to conflict with jedi-vim. See issue `#163
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<https://github.com/davidhalter/jedi-vim/issues/163>`__.
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Testing
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=======
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jedi-vim is being tested with a combination of `vspec
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<https://github.com/kana/vim-vspec>`_ and `py.test <http://pytest.org/>`_.
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The tests are in the ``test`` subdirectory, you can run them calling::
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py.test
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The tests are automatically run with `travis
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<https://travis-ci.org/davidhalter/jedi-vim>`_.
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