Web Sitehttp://flake8.pycqa.org/en/latest/
LanguagePython 2.7.13, 3.6.2
Supported Version3.5.0

Getting Started

To start using Flake8, enable it in repository settings.

To customize Flake8, put .flake8 in your repository.

Python Version

If your repository contains .python-version, the python version is inferred from the file. You can specify Python version via sideci.yml. The default is Python 3.

The latest versions of Python 2 or Python 3 can be used.

Default Configuration

Sider provides default configuration for Flake8. If your repository does not include .flake8, setup.cfg or tox.ini, our default configuration will be used.

Our default configuration is available in GitHub repository.

Configuration via sideci.yml

Here is an example setting for Flake8 under flake8.

    version: 2
      - flake8-bandit
      - flake8-builtins==1.4.1
      - flake8-mypy>=17.3.3


This setting manages Python's version when running flake8. Python 3 will be used if omitted.


This option allows you to enable Flake8 plugins. You can set arbitrary plugin names and also specify (minimum) version number. Without package version number, Sider will install the latest version.