This is a pyflakes-vim fork aiming at python3 compatibility, it does not mean I aim to support it seriously, as I really don’t know anything about VimL, but I want to make it at least usable for me.

Syntastic is way too heavy for me, and the original pyflakes-vim has no python 3 support (and when you use some non-python2 syntax it is basically useless). vim-flake8 is good but has no on-the-fly checking and error highlight, so I find it less useful.

Anyway, here are my changes, they require a python3-capable vim, and you cannot use the plugin with most python2 code as the syntax is somewhat different and vim doesn’t make a difference between python 2 and python 3 when activating plugins.

And for some reason, the pyflakes master branch doesn’t work, so I removed the submodule; pyflakes needs to be installed separately.

Original README below.

pyflakes-vim is officially deprecated!

The must-have features of pyflakes-vim have been merged into Syntastic, which has a plugin-based syntax checking backend. This means you can check many different languages on the fly. I recommend using Syntastic unless you're mostly just editing Python.

pyflakes-vim

A Vim plugin for checking Python code on the fly.

PyFlakes catches common Python errors like mistyping a variable name or accessing a local before it is bound, and also gives warnings for things like unused imports.

pyflakes-vim uses the output from PyFlakes to highlight errors in your code. To locate errors quickly, use quickfix commands like :cc.

Make sure to check vim.org for the latest updates.

Quick Installation

1. Make sure your .vimrc has:

   filetype on            " enables filetype detection
   filetype plugin on     " enables filetype specific plugins
   

2. Download the latest release.

3. If you're using pathogen, unzip the contents of pyflakes-vim.zip into its own bundle directory, i.e. into ~/.vim/bundle/pyflakes-vim/.

   Otherwise unzip pyflakes.vim and the pyflakes directory into ~/.vim/ftplugin/python (or somewhere similar on your runtime path that will be sourced for Python files).

Running from source

If you're running pyflakes-vim "from source," you'll need the PyFlakes library on your PYTHONPATH somewhere. (It is included in the vim.org zipfile.) I recommend getting the github.com/pyflakes PyFlakes fork, which retains column number information, giving more specific error locations.

Hacking

git clone --recursive git://github.com/kevinw/pyflakes-vim.git

or use the PyFlakes submodule:

git clone git://github.com/kevinw/pyflakes-vim.git
cd pyflakes-vim
git submodule init
git submodule update

Options

Set this option in your vimrc file to disable quickfix support:

let g:pyflakes_use_quickfix = 0

The value is set to 1 by default.

TODO

• signs support (show warning and error icons to left of the buffer area)
• configuration variables
• parse or intercept useful output from the warnings module

Changelog

Please see http://www.vim.org/scripts/script.php?script_id=2441 for a history of all changes.