Automatic code quality checks for Python?

[bittner]

Should we add checks on code quality that are automatically run each time changes are applied?

For Python, this would merely be running the tools Flake8 and Pylint in a Travis-CI configuration file, e.g.

# FILE: .travis.yml
language: python
python:
  - 3.6
before_script:
  - pip install flake8 pylint
script:
  - flake8 */python
  - pylint */python/*.py

This could (later) be extended to other languages. I would then suggest to use Travis' build stages feature to beautifully organize - visually separate, really - the linter results for the separate languages.