Moved to Python 3.5 and 3.7 for Travis

language: python

python:

- '2.7'

- '3.5'

- '3.7'

sudo: required

dist: trusty

install:

script:

- nosetests -q --with-flaky -a '!slow' --with-coverage --cover-package=deepchem

  -v deepchem --nologcapture

- if [ $TRAVIS_PYTHON_VERSION == '3.5' ]; then

- if [ $TRAVIS_PYTHON_VERSION == '3.7' ]; then

      find ./deepchem | grep .py$ |xargs python -m doctest -v;

  fi

- bash devtools/travis-ci/test_format_code.sh