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Kenneth Reitz
138 lines
4.0 KiB
Plaintext
138 lines
4.0 KiB
Plaintext
Your Development Environment
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============================
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Text Editors
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VIM
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---
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There exist a couple of plugins and settings for the VIM editor to aid python
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development. If you only develop in Python, a good start is to set the default
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settings for indentation and linewrapping to values compliant with PEP8::
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set textwidth=79
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set shiftwidth=4
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set tabstop=4
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set expandtab
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set softtabstop=4
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set shiftround
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With these settings newlines are inserted after 79 characters and indentation
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is set to 4 spaces per tab. If you also use VIM for other languages, there is a
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handy plugin at indent_, which handles indentation settings for python source
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files.
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Additionally there is also a handy syntax plugin at syntax_ featuring some
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improvements over the syntax file included in VIM 6.1.
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These plugins supply you with a basic environment for developing in Python.
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However in order to improve the programming flow we also want to continually
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check for PEP8 compliance and check syntax. Luckily there exist PEP8_ and
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Pyflakes_ to do this for you. If your VIM is compiled with `+python` you can
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also utilize some very handy plugins to do these checks from within the editor.
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For PEP8 checking install vim-pep8_. Now you can map the vim function
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`Pep8()` to any hotkey or action you want. Similarly for pyflakes you can
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install vim-pyflakes_. Now you can map `Pyflakes()` like the PEP8 function and
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have it called quickly. Both plugins will display errors in a quickfix list and
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provide an easy way to jump to the corresponding line. A very handy setting is
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calling these functions whenever a buffer is saved. In order to do this, enter
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the following lines into your vimrc::
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autocmd BufWritePost *.py call Pyflakes()
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autocmd BufWritePost *.py call Pep8()
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.. _indent: http://www.vim.org/scripts/script.php?script_id=974
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.. _syntax: http://www.vim.org/scripts/script.php?script_id=790
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.. _Pyflakes: http://pypi.python.org/pypi/pyflakes/
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.. _vim-pyflakes: https://github.com/nvie/vim-pyflakes
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.. _PEP8: http://pypi.python.org/pypi/pep8/
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.. _vim-pep8: https://github.com/nvie/vim-pep8
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.. todo:: add supertab notes
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IDEs
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PyCharm / IntelliJ IDEA
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-----------------------
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PyCharm is developed by JetBrains, also known for IntelliJ IDEA. Both share the same code base and most of PyCharm's features can be brought to IntelliJ with the free `Python Plug-In <http://plugins.intellij.net/plugin/?id=631/>`_..
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Eclipse
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-------
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The most popular Eclipse plugin for Python development is Aptana's
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`PyDev <http://pydev.org>`_.
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Komodo IDE
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-----------
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`Komodo IDE <http://www.activestate.com/komodo-ide>`_ is developed by ActiveState and is a commerical IDE for Windows, Mac
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and Linux.
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Spyder
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------
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`Spyder <http://code.google.com/p/spyderlib/>`_ an IDE specifically geared toward working with scientific python libraries (namely `Scipy <http://www.scipy.org/>`_).
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Includes integration with `pyflakes <http://pypi.python.org/pypi/pyflakes>`_, `pylint <http://www.logilab.org/857>`_,
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and `rope <http://rope.sourceforge.net/>`_.
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Spyder is open-source (free), offers code completion, syntax highlighting, class and function browser, and object
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inspection
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Interpreter Tools
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:::::::::::::::::
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virtualenv
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----------
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Virtualenv is a tool to keep the dependencies required by different projects in separate places, by creating virtual Python environments for them.
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It solves the "Project X depends on version 1.x but, Project Y needs 4.x" dilemma and keeps your global site-packages directory clean and manageable.
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virtualenvwrapper
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-----------------
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Virtualenvwrapper makes virtualenv a pleasure to use by wrapping the command line API with a nicer CLI.
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::
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pip install virtualenvwrapper
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Put this into your `~/.bash_profile` (Linux/Mac) file:
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::
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export VIRTUALENVWRAPPER_VIRTUALENV_ARGS='--no-site-packages'
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This will prevent your virtualenvs from relying on your (global) site packages directory, so that they are completely separate..
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Other Tools
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:::::::::::
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IPython
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-------
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::
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$ pip install ipython
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BPython
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-------
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::
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$ pip install bpython
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