vim-python-pep8-indent

This small script modifies Vim’s indentation behavior to comply with PEP8 and my aesthetic preferences. Most importantly:

foobar(foo,
       bar)

and:

foobar(
   foo,
   bar
)

Installation

Install the plugin using your favorite plugin manager / method, a few examples follow:

Pathogen

Follow the instructions on installing Pathogen and then:

$ cd ~/.vim/bundle
$ git clone https://github.com/Vimjas/vim-python-pep8-indent.git

Vundle

Follow the instructions on installing Vundle and add the appropriate plugin line into your .vimrc:

Plugin 'Vimjas/vim-python-pep8-indent'

NeoBundle

Follow the instructions on installing NeoBundle and add the appropriate NeoBundle line into your .vimrc:

NeoBundle 'Vimjas/vim-python-pep8-indent'

Configuration

g:python_pep8_indent_multiline_string

You can configure the initial indentation of multiline strings using g:python_pep8_indent_multiline_string (which can also be set per buffer). This defaults to 0, which means that multiline strings are not indented. -1 and positive values will be used as-is, where -1 is a special value for Vim's indentexpr, and will keep the existing indent (using Vim's autoindent setting). -2 is meant to be used for strings that are wrapped with textwrap.dedent etc. It will add a level of indentation if the multiline string started in the previous line, without any content in it already:

testdir.makeconftest("""
    _

With content already, it will be aligned to the opening parenthesis:

testdir.makeconftest("""def pytest_addoption(parser):
                     _

Existing indentation (including 0) in multiline strings will be kept, so this setting only applies to the indentation of new/empty lines.

g:python_pep8_indent_hang_closing

Control closing bracket indentation with python_pep8_indent_hang_closing, set globally or per buffer.

By default (set to 0), closing brackets line up with the opening line:

my_list = [
    1, 2, 3,
    4, 5, 6,
]
result = some_function_that_takes_arguments(
    'a', 'b', 'c',
    'd', 'e', 'f',
)

With python_pep8_indent_hang_closing = 1, closing brackets line up with the items:

my_list = [
    1, 2, 3,
    4, 5, 6,
    ]
result = some_function_that_takes_arguments(
    'a', 'b', 'c',
    'd', 'e', 'f',
    )

Troubleshooting

In case it is not working, please make sure your Vim is configured to load indent files (filetype indent on). This is typically the case when using a plugin manager, but check its docs.

Check :verbose set indentexpr? in a Python file, which should show something like the following:

indentexpr=GetPythonPEPIndent(v:lnum)

Last set from ~/…/plugged/vim-python-pep8-indent/indent/python.vim

Notes

Please note that Kirill Klenov’s python-mode ships its own version of this bundle. Therefore, if you want to use this version specifically, you’ll have to disable python-mode’s using:

let g:pymode_indent = 0

License and Authorship

This script is based on one from Vim’s official script repo that was not originally written by me. Unfortunately the indentation was off by one character in one case and the script hasn’t been updated since 2005.

Even more unfortunately, I wasn’t able to reach any of the original authors/maintainers: David Bustos and Eric Mc Sween.

So I fixed the annoyance with the help of Steve Losh and am putting it out here so you don’t have to patch the original yourself. The original patch is still available here.

Over the time a lot more improvements have been contributed by generous people.

I’d like to thank the original authors here for their work and release it hereby to the Public Domain (using the CC0 licence) since I hope that would be in their spirit. If anyone with a say in this objects, please let me know immediately. Also, if someone is in contact with one of them, I would appreciate being introduced.

While my Vimscript skills are still feeble, I intend to maintain it for now. This mainly means that I’ll triage through bugs and pull requests but won’t be fixing much myself.