how to use pylint in vim

Question

I do not want to install another plugin, like pylint.vim,

And today, I decide to use vim edit python instead of pydev which is a eclipse plugin. But I got issues.

I have add this in my vimrc

autocmd BufWritePost *.py !pylint <afile>

but pylint does not contains filename in output

************* Module mymodule
E: 22: invalid syntax

shell return 2

so it can not jump to the line 22 , so I use sed change the output

autocmd BufWritePost *.py !pylint <afile> | sed 's/^\(\w*\):\s*\([0-9]\+\)/<afile>:\2: \1: /g'

it returns:

mymodule.py:22: E: : invalid syntax

but without shell return 2 by vim. so it still can't jump to that line. vim consider it as compile successfully

========================= new comment =========== Call a function in Vim’s `autocmd` command

I think maybe I should use make command and set makeprg, so I use below config

autocmd FileType python let &makeprg='pylint <afile> | sed s/^\(\w*\):\s*\([0-9]\+\)/<afile>:\2: \1: /g'
autocmd BufWritePost *.py make

when I save, vim returns:

************* Module count
E:  3: invalid syntax
(1 of 2): ************* Module count
Error detected while processing BufWritePost Auto commands for "*.py":
E492: Not an editor command:  sed s/^\(\w*\):\s*\([0-9]\+\)/<afile>:\2: 
\1: /g 

Answer 1

why so complicated with sed which just works properly on Linux? Try the following:

set makeprg=pylint\ --reports=n\ --output-format=parseable\ %:p
set errorformat=%f:%l:\ %m

Answer 2

pylint.vim is old, use syntastic instead:

https://github.com/scrooloose/syntastic

Answer 3

at last I resolve it myself. I'd like share with you guys. 2 lines in vimrc.

autocmd FileType python let &makeprg='pylint %\|sed "s/^\(\w*\):\s*\([0-9]\+\)/%:\2:\ \1:\ /g"'
autocmd BufWritePost *.py make 

Answer 4

I would recommend to use A.L.E (Asynchronous Lint Engine) https://github.com/w0rp/ale

It supports a range of python linters and formatters including pylint. Great thing about A.L.E that it supports many other languages.

Answer 5

you may want to try running epylint instead of just pylint.

epylint (shipped with pylint) is the one that is used within emacs (with flymake). It has a few changes, especially regarding path handling, see the docstring at the start of pylint/epylint.py for more information. It may help you in vim too.

Sidenote: I'm not a vim user for programming myself, but pylint.vim still seems to be a decent option. But I won't question your prerequisites.

Answer 6

autocmd FileType python let &makeprg=‘/usr/local/bin/pylint %’

autocmd BufWritePost *.py make

autocmd FileType python let &makeprg=‘/usr/local/bin/pyflakes %’

autocmd BufWritePost *.py make