travis: macOS: test on py370, linux: add py38

.travis.yml

@@ -27,6 +27,10 @@ matrix:
           os: linux
           dist: xenial
           env: TOXENV=py37
+        - python: 3.8
+          os: linux
+          dist: xenial
+          env: TOXENV=py38
         - language: generic
           os: osx
           osx_image: xcode8.3
@@ -34,7 +38,7 @@ matrix:
         - language: generic
           os: osx
           osx_image: xcode8.3
-          env: TOXENV=py36
+          env: TOXENV=py37
 
 before_install:
 - |

.travis/install.sh

@@ -31,9 +31,9 @@ if [[ "$(uname -s)" == 'Darwin' ]]; then
             pyenv install 3.5.3  # minimum for openssl 1.1.x
             pyenv global 3.5.3
             ;;
-        py36)
-            pyenv install 3.6.7  # minimum for homebrew to select openssl 1.1.x
-            pyenv global 3.6.7
+        py37)
+            pyenv install 3.7.0
+            pyenv global 3.7.0
             ;;
     esac
     pyenv rehash

tox.ini

@@ -2,7 +2,7 @@
 # fakeroot -u tox --recreate
 
 [tox]
-envlist = py{34,35,36,37},flake8
+envlist = py{34,35,36,37,38},flake8
 
 [testenv]
 deps =