Python-mode, Python in VIM

Python-mode is a vim plugin that allows you to use the pylint, rope, pydoc, pyflakes, pep8, mccabe libraries in vim to provide features like python code looking for bugs, refactoring and some other useful things.

This plugin allow you create python code in vim very easily. There is no need to install the pylint, rope or any used python library on your system.

• Python objects and motion (]], 3[[, ]]M, vaC, viM, daC, ciM, ...)
• Folding of python code
• Virtualenv support
• Highlight syntax errors
• Highlight and auto fix unused imports
• Many linters (pylint, pyflakes, ...) that can be run simultaneously
• Strong code completion
• Code refactoring
• Python documentation
• Run python code
• Go to definition
• Powerful customization
• And more, more ...

See (very old) screencast here: http://t.co/3b0bzeXA (sorry for quality, this is my first screencast) Another old presentation here: http://www.youtube.com/watch?v=YhqsjUUHj6g

Contents

• Requirements
• How to install
  • Using pathogen (recomended)
  • Manually
• Troubleshooting
• Settings
  • Loading the Plugin
  • Show documentation
  • Run python code
  • Code checking
  • Rope refactoring library
  • Automatically folding of python code
  • Vim python motions and operators
  • Virtualenv support
  • Other stuff
  • Syntax highlight
• Default keys
• Commands
• F.A.Q.
  • Rope completion is very slow
  • Pylint check is very slow
  • OSX cannot import urandom
• Bugtracker
• Contributing
• Copyright
• License

Requirements

• VIM >= 7.0 with python support (also --with-features=big if you want use g:pymode_lint_signs)

How to install

Using pathogen (recomended)

% cd ~/.vim
% mkdir -p bundle && cd bundle
% git clone git://github.com/klen/python-mode.git

• Enable pathogen in your ~/.vimrc:

  " Pathogen load
  filetype off
  
  call pathogen#infect()
  call pathogen#helptags()
  
  filetype plugin indent on
  syntax on
  

Manually

% git clone git://github.com/klen/python-mode.git
% cd python-mode
% cp -R * ~/.vim

Then rebuild helptags in vim:

:helptags ~/.vim/doc/

Note

filetype-plugin (:help filetype-plugin-on) and filetype-indent (:help filetype-indent-on) must be enabled for use python-mode.

Troubleshooting

If your python-mode dont work, open any python file and type command:

:call pymode#troubleshooting#Test()

And fix warnings or copy output and send it to me (ex. with github issue).

Settings

Note

Also you can see vim help. :help PythonModeOptions

To change this settings, edit your ~/.vimrc:

" Disable pylint checking every save
let g:pymode_lint_write = 0

" Set key 'R' for run python code
let g:pymode_run_key = 'R'

Loading the Plugin

Default values:

" Load the whole plugin
let g:pymode = 1

Show documentation

Default values:

" Load show documentation plugin
let g:pymode_doc = 1

" Key for show python documentation
let g:pymode_doc_key = 'K'

Run python code

Default values:

" Load run code plugin
let g:pymode_run = 1

" Key for run python code
let g:pymode_run_key = '<leader>r'

Code checking

Default values:

" Load pylint code plugin
let g:pymode_lint = 1

" Switch pylint, pyflakes, pep8, mccabe code-checkers
" Can have multiply values "pep8,pyflakes,mcccabe"
" Choices are pyflakes, pep8, mccabe, pylint, pep257
let g:pymode_lint_checker = "pyflakes,pep8,mccabe"

" Skip errors and warnings
" E.g. "E501,W002", "E2,W" (Skip all Warnings and Errors startswith E2) and etc
let g:pymode_lint_ignore = "E501"

" Select errors and warnings
" E.g. "E4,W"
let g:pymode_lint_select = ""

" Run linter on the fly
let g:pymode_lint_onfly = 0

" Pylint configuration file
" If file not found use 'pylintrc' from python-mode plugin directory
let g:pymode_lint_config = "$HOME/.pylintrc"

" Check code every save
let g:pymode_lint_write = 1

" Auto open cwindow if errors be finded
let g:pymode_lint_cwindow = 1

" Show error message if cursor placed at the error line
let g:pymode_lint_message = 1

" Auto jump on first error
let g:pymode_lint_jump = 0

" Hold cursor in current window
" when quickfix is open
let g:pymode_lint_hold = 0

" Place error signs
let g:pymode_lint_signs = 1

" Maximum allowed mccabe complexity
let g:pymode_lint_mccabe_complexity = 8

" Minimal height of pylint error window
let g:pymode_lint_minheight = 3

" Maximal height of pylint error window
let g:pymode_lint_maxheight = 6

Note

Pylint options (ex. disable messages) may be defined in $HOME/pylint.rc See pylint documentation: http://pylint-messages.wikidot.com/all-codes

Rope refactoring library

Default values:

" Load rope plugin
let g:pymode_rope = 1

" Map keys for autocompletion
let g:pymode_rope_autocomplete_map = '<C-Space>'

" Auto create and open ropeproject
let g:pymode_rope_auto_project = 1

" Enable autoimport
let g:pymode_rope_enable_autoimport = 1

" Auto generate global cache
let g:pymode_rope_autoimport_generate = 1

let g:pymode_rope_autoimport_underlineds = 0

let g:pymode_rope_codeassist_maxfixes = 10

let g:pymode_rope_sorted_completions = 1

let g:pymode_rope_extended_complete = 1

let g:pymode_rope_autoimport_modules = ["os","shutil","datetime"]

let g:pymode_rope_confirm_saving = 1

let g:pymode_rope_global_prefix = "<C-x>p"

let g:pymode_rope_local_prefix = "<C-c>r"

let g:pymode_rope_vim_completion = 1

let g:pymode_rope_guess_project = 1

let g:pymode_rope_goto_def_newwin = ""

let g:pymode_rope_always_show_complete_menu = 0

Automatically folding of python code

Default values:

" Enable python folding
let g:pymode_folding = 1

Vim python motions and operators

Default values:

" Enable python objects and motion
let g:pymode_motion = 1

Virtualenv support

Default values:

" Auto fix vim python paths if virtualenv enabled
let g:pymode_virtualenv = 1

Other stuff

Default values:

" Additional python paths
let g:pymode_paths = []

" Load breakpoints plugin
let g:pymode_breakpoint = 1

" Key for set/unset breakpoint
let g:pymode_breakpoint_key = '<leader>b'

" Autoremove unused whitespaces
let g:pymode_utils_whitespaces = 1

" Enable pymode indentation
let g:pymode_indent = 1

" Set default pymode python options
let g:pymode_options = 1

Syntax highlight

Default values:

" Enable pymode's custom syntax highlighting
let g:pymode_syntax = 1

" Enable all python highlightings
let g:pymode_syntax_all = 1

" Highlight "print" as function
let g:pymode_syntax_print_as_function = 0

" Highlight indentation errors
let g:pymode_syntax_indent_errors = g:pymode_syntax_all

" Highlight trailing spaces
let g:pymode_syntax_space_errors = g:pymode_syntax_all

" Highlight string formatting
let g:pymode_syntax_string_formatting = g:pymode_syntax_all

" Highlight str.format syntax
let g:pymode_syntax_string_format = g:pymode_syntax_all

" Highlight string.Template syntax
let g:pymode_syntax_string_templates = g:pymode_syntax_all

" Highlight doc-tests
let g:pymode_syntax_doctests = g:pymode_syntax_all

" Highlight builtin objects (__doc__, self, etc)
let g:pymode_syntax_builtin_objs = g:pymode_syntax_all

" Highlight builtin functions
let g:pymode_syntax_builtin_funcs = g:pymode_syntax_all

" Highlight exceptions
let g:pymode_syntax_highlight_exceptions = g:pymode_syntax_all

" Highlight equal operator
let g:pymode_syntax_highlight_equal_operator = g:pymode_syntax_all

" Highlight stars operator
let g:pymode_syntax_highlight_stars_operator = g:pymode_syntax_all

" Highlight `self`
let g:pymode_syntax_highlight_self = g:pymode_syntax_all

" For fast machines
let g:pymode_syntax_slow_sync = 0

Default keys

Note

Also you can see vim help :help PythonModeKeys

Keys	Command
K	Show python docs (g:pymode_doc enabled)
<C-Space>	Rope autocomplete (g:pymode_rope enabled)
<C-c>g	Rope goto definition (g:pymode_rope enabled)
<C-c>d	Rope show documentation (g:pymode_rope enabled)
<C-c>f	Rope find occurrences (g:pymode_rope enabled)
<Leader>r	Run python (g:pymode_run enabled)
<Leader>b	Set, unset breakpoint (g:pymode_breakpoint enabled)
[[	Jump on previous class or function (normal, visual, operator modes)
]]	Jump on next class or function (normal, visual, operator modes)
[M	Jump on previous class or method (normal, visual, operator modes)
]M	Jump on next class or method (normal, visual, operator modes)
aC C	Select a class. Ex: vaC, daC, dC, yaC, yC, caC, cC (normal, operator modes)
iC	Select inner class. Ex: viC, diC, yiC, ciC (normal, operator modes)
aM M	Select a function or method. Ex: vaM, daM, dM, yaM, yM, caM, cM (normal, operator modes)
iM	Select inner function or method. Ex: viM, diM, yiM, ciM (normal, operator modes)

Note

See also :help ropevim.txt

Commands

Note

Also you can see vim help :help PythonModeCommands

Command	Description
:Pydoc <args>	Show python documentation
PyLintToggle	Enable, disable pylint
PyLintCheckerToggle	Toggle code checker (pylint, pyflakes)
PyLint	Check current buffer
PyLintAuto	Automatic fix PEP8 errors
Pyrun	Run current buffer in python

Note

See also :help ropevim.txt

F.A.Q.

Rope completion is very slow

To work rope creates a service directory: .ropeproject. If g:pymode_rope_guess_project set (by default) and .ropeproject in current dir not found, rope scan .ropeproject on every dir in parent path. If rope finded .ropeproject in parent dirs, rope set project for all child dir and scan may be slow for many dirs and files.

Solutions:

• Disable g:pymode_rope_guess_project to make rope always create .ropeproject in current dir.
• Delete .ropeproject from dip parent dir to make rope create .ropeproject in current dir.
• Press <C-x>po or :RopeOpenProject to make force rope create .ropeproject in current dir.

Pylint check is very slow

In some projects pylint may check slowly, because it also scan imported modules if posible. Try use pyflakes, see :h 'pymode_lint_checker'.

Note

You may set exrc and set secure in your vimrc for auto set custom settings from .vimrc from your projects directories. Example: On Flask projects I automaticly set g:pymode_lint_checker = "pyflakes", on django g:pymode_lint_cheker = "pylint"

OSX cannot import urandom

See: https://groups.google.com/forum/?fromgroups=#!topic/vim_dev/2NXKF6kDONo

The sequence of commands that fixed this:

brew unlink python
brew unlink macvim
brew remove macvim
brew install -v --force macvim
brew link macvim
brew link python

Bugtracker

If you have any suggestions, bug reports or annoyances please report them to the issue tracker at https://github.com/klen/python-mode/issues

Contributing

See in the AUTHORS file.

Development of pylint-mode happens at github: https://github.com/klen/python-mode

Copyright

Copyright © 2013 Kirill Klenov (klen)

Rope

Copyright (C) 2006-2010 Ali Gholami Rudi

Copyright (C) 2009-2010 Anton Gritsay

Pylint

Copyright (C) 2003-2011 LOGILAB S.A. (Paris, FRANCE). http://www.logilab.fr/

Pyflakes:

Copyright (c) 2005 Divmod, Inc. http://www.divmod.com/

PEP8

Copyright (C) 2006 Johann C. Rocholl <johann@rocholl.net> http://github.com/jcrocholl/pep8

autopep8:

Copyright (c) 2012 hhatto <hhatto.jp@gmail.com> https://github.com/hhatto/autopep8

Python syntax for vim

Copyright (c) 2010 Dmitry Vasiliev http://www.hlabs.spb.ru/vim/python.vim

PEP8 VIM indentation

Copyright (c) 2012 Hynek Schlawack <hs@ox.cx> http://github.com/hynek/vim-python-pep8-indent

License

Licensed under a GNU lesser general public license.

If you like this plugin, you can send me postcard :) My address is here: "Russia, 143401, Krasnogorsk, Shkolnaya 1-19" to "Kirill Klenov". Thanks for support!