language: python
python:
  - "2.7"
  - "3.6"
  - "3.7"
install:
  - pip install -r requirements.txt
  - pip install pycodestyle
before_script:
  - pycodestyle .
script: nosetests

language: python
sudo: required
dist: xenial
python:
  - "2.7"
  - "3.6"
  - "3.7"
install:
  - pip install -r requirements.txt
  - pip install pycodestyle
before_script:
  - pycodestyle .
script: nosetests

Add workaround for Python 3.7 tests in TravisCI
Add workaround for Python 3.7 tests in TravisCI
