Try python3 build

Author: mvdbeek

.travis.yml

@@ -1,21 +1,37 @@
 language: python
 sudo: false
-python: 2.7
+python:
+  - 2.7
+  - 3.6
 env:
   global:
     - PLANEMO_SKIP_REDUNDANT_TESTS=1
     - PLANEMO_ENABLE_POSTGRES_TESTS=1
     - PLANEMO_SKIP_GALAXY_CWL_TESTS=1
-    - PLANEMO_TEST_WORKFLOW_RUN_PROFILE=travisworkflowtests
+    - PLANEMO_TEST_WORKFLOW_RUN_PROFILE=travisworkflowtest
   matrix:
     - TOX_ENV=py27-lint
-    - TOX_ENV=py34-lint
+    - TOX_ENV=py36-lint
     - TOX_ENV=py27-lint-readme
     - TOX_ENV=py27-lint-docs
-    - TOX_ENV=py34-quick
+    - TOX_ENV=py36-quick
     - TOX_ENV=py27
-    - TOX_ENV=py34
+    - TOX_ENV=py36
     - TOX_ENV=py27-lint-docstrings
+    exclude:
+      - python: 2.7
+        env:
+          - TOX_ENV=py36-lint
+          - TOX_ENV=py36-quick
+          - TOX_ENV=py36
+      - python: 3.6
+        env:
+          - TOX_ENV=py27-lint
+          - TOX_ENV=py27-lint-readme
+          - TOX_ENV=py27-lint-docs
+          - TOX_ENV=py27-lint-docstrings
+          - TOX_ENV=py27
+
 
 install:
   - pip install tox coveralls

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{27,34}-lint, py{27,34,35}-quick, py27-lint-imports, py27-lint-docstrings, py27-lint-readme, py27-lint-docs, py{27,34,35}, py{27,34,35}-gx-{master,dev,1805,1801,1709,1705}, doc-test
+envlist = py{27,34,35,36}-lint, py{27,34,35,36}-quick, py27-lint-imports, py27-lint-docstrings, py27-lint-readme, py27-lint-docs, py{27,34,35,36}, py{27,34,35,36}-gx-{master,dev,1805,1801,1709,1705}, doc-test
 source_dir = planemo
 test_dir = tests