-# Config file for automatic testing at travis-ci.org
-
-# Only test master and pull requests; skip tags.
-# Other branches can allow themselves.
-branches:
- only:
- - master
-
-# Prefer docker containers
-sudo: required
-
language: python
python:
env: TOXENV=py37-flake8
install:
- - travis_retry pip install --upgrade pip setuptools tox
+ - travis_retry pip install --upgrade "pip < 19.1" setuptools tox
script:
- tox