🤖 sync with cloudalchemy/skeleton (SHA: f4521f6a): use latest available python (#29)

Author: cloudalchemybot

.travis.yml

@@ -3,7 +3,7 @@ dist: xenial
 sudo: required
 language: python
 python:
-  - 3.5
+  - 3.7
 cache: pip
 services:
   - docker

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 1.8
-envlist = py{35}-ansible{27,28,29}
+envlist = py3-ansible{27,28,29}
 skipsdist = true
 
 [travis:env]
@@ -10,7 +10,7 @@ ANSIBLE=
   2.9: ansible29
 
 [testenv]
-passenv = *
+passenv = GH_* DOCKER_HOST MOLECULE_*
 deps =
     -rtest-requirements.txt
     ansible27: ansible<2.8