Flake8-vim: pyflakes, pep8 and mcabe checker for Vim

Flake8-vim is a Vim plugin that checks python sources for errors. It's based on pylint-mode plugin by Kirill Klenov.

Installation

Copy plugin folders into your .vim directory. Alternatively use vundle package manager for Vim and run command:

BundleInstall andviro/flake8-vim

Configuration

By default python source code is checked with pyflakes, pep8 and mccabe code complexity utility. The following options can be configured through global variables in .vimrc:

Auto-check file for errors on write:

let g:PyFlakeOnWrite = 1

List of checkers used:

let g:PyFlakeCheckers = 'pep8,mccabe,pyflakes'

Default maximum complexity for mccabe:

let g:PyFlakeDefaultComplexity=10

List of disabled pep8 warnings and errors:

let g:PyFlakeDisabledMessages = 'E501'

Default height of quickfix window:

let g:PyFlakeCWindow = 6 

Whether to place signs or not:

let g:PyFlakeSigns = 1 

Maximum line length for PyFlakeAuto command

let g:PyFlakeMaxLineLength = 100

Visual-mode key command for PyFlakeAuto

let g:PyFlakeRangeCommand = 'Q'

Commands

Disable/enable automatic checking of current file

:PyFlakeToggle

Run checks for current file

:PyFlake

Auto-fix pep8 errors for current file

:PyFlakeAuto

PyFlakeAuto command by default works with the whole file, but also accepts line ranges. Select some lines in Python code, then use :'<,'>PyFlakeAuto to re-format and fix pep8 errors for them. For every Python buffer Visual-mode shortcut is added to quickly fix selection ('Q' by default). Set global variable g:PyFlakeRangeCommand in .vimrc to change the key sequence. To disable visual mode mapping, set this variable to empty string.

Author

Andrew Rodionoff (@andviro)