language: python
python:
  - "2.7"
env:
  - PGVERSION=9.6
dist: trusty 
sudo: required
cache: pip
before_install:
 - chmod +x ./bin/travis-install-dependencies
 - chmod +x ./bin/travis-run-tests
install: ./bin/travis-install-dependencies
script: ./bin/travis-run-tests
after_success: coveralls
language: python
python:
  - "2.7"
env:
  - PGVERSION=9.6
dist: trusty
sudo: required
cache: pip
before_install:
 - chmod +x ./bin/travis-install-dependencies
 - chmod +x ./bin/travis-run-tests
install: ./bin/travis-install-dependencies
script:
 - ./bin/travis-run-tests
 - pycodestyle --count

Add command to lint code according to PEP8
Add command to lint code according to PEP8
