Python C Shell Batchfile Java CSS
Latest commit 8575b3f Feb 23, 2017 @jayvdb jayvdb .travis.yml: Use Python version '3.6'
Python version `3.6-dev` is confusing, as Python 3.6 has been
officially released.

Also remove unnecessary nvm commands.
Failed to load latest commit information.
.ci CircleCI: Add Ubuntu package php7.0-cli to trusty Feb 15, 2017
bears MarkdownBear: Restrict remark-lint to ~5 Feb 23, 2017
docs docs: Build docs using sphinx Mar 11, 2016
tests JSONFormatBear: Add empty file handling Feb 14, 2017
.coafile coafile: Rename body_close_issue_last_line Feb 1, 2017
.codecov.yml codecov.yml: Fix it Jul 25, 2016
.gitignore ci: Add caching for Ruby gems Sep 9, 2016
.rultor.yml Revert "CI: Update bear-docs with every merge" Nov 11, 2016
.travis.yml .travis.yml: Use Python version '3.6' Feb 26, 2017
Gemfile RubySyntaxBear: Use DistributionRequirement Feb 15, 2017
LICENSE coala-bears: Add LICENSE Feb 19, 2016 Add bear-requirements.txt Feb 24, 2017 Add pull request template Feb 6, 2017
README.rst README.rst: Update broken links Dec 19, 2016
RELEASE_NOTES.rst RELEASE_NOTES.rst: Update URL references Feb 1, 2017
bear-requirements.txt bear-requirements.txt: Omit inherited dependencies Jan 28, 2017
circle.yml coala-bears.cabal: Create and use Feb 15, 2017
coala-bears.cabal coala-bears.cabal: Create and use Feb 15, 2017
docs-requirements.txt docs: Build docs using sphinx Mar 11, 2016
package.json MarkdownBear: Restrict remark-lint to ~5 Feb 23, 2017
requirements.txt requirements: Upgrade coala Feb 2, 2017
setup.cfg PyromaBear: Add PyromaBear Jan 21, 2017 Delegate Python version check to coala Jan 1, 2017
test-requirements.txt test-requirements.txt: Fix coverage pin Jan 17, 2017



coala-bears is a Python package containing all the bears that are officially supported by coala. It features more than 78 bears covering 54 languages. Here is a generated list that contains information about each bear, such as the languages it supports and what fixes it can apply to your code.


To install the latest stable version run:

$ pip3 install coala-bears


To install the latest development version run:

$ pip3 install coala-bears --pre

The latest code from the master branch is automatically deployed as the development version in PyPI.

To also install all bears for coala at once run:

$ pip3 install coala-bears

You can also use cib (coala Installs Bears), which is an experimental bear manager that lets you install, upgrade, uninstall, check dependencies, etc. for bears. To install it, run:

$ pip3 install cib

For usage instructions, consult this link.

Be sure to use the latest version of pip, the default pip from Debian doesn't support our dependency version number specifiers. You will have to use a virtualenv in this case.

PyPI Windows Linux

Languages Supported

To see what coala can do for your language, run:

$ coala --show-bears --filter-by-language Python
Languages coala provides algorithms for
C Latex SQL
C++ Lua Swift
C# Markdown TypeScript
CMake Matlab/Octave Verilog
CoffeeScript Natural Language (English) VHDL
CSS Perl Vimscript
Fortran Python 2 YAML
Go Python 3  
Haskell R  
HTML reStructured Text  
Java Ruby  
JavaScript Scala  
Julia sh & bash scripts  

The number of bears grows every day! If you want to see any particular functionality be sure to submit an issue, but please read the Getting Involved section before doing so.

You can read more at our documentation. There you can learn how to easily write bears yourself! Be sure to let us know if you do so, so we'll be able to include it here and spread the word about it.


For more information about how to do basic analysis, check out the coala README.

Getting Involved

If you would like to be a part of the coala community, you can check out our Getting In Touch page or ask us at our active Gitter channel, where we have maintainers from all over the world. We appreciate any help!

We also have a newcomer guide to help you get started by fixing an issue yourself! If you get stuck anywhere or need some help, feel free to contact us on Gitter or drop a mail at our newcomer mailing list.



Feel free to contact us at our Gitter channel, we'd be happy to help!

If you are interested in commercial support, please contact us on the Gitter channel as well.

You can also drop an email at our mailing list.


coala is maintained by a growing community. Please take a look at the meta information in for the current maintainers.