Test against Python 3.7 on Travis (#426)

Author: rooterkyberian

.travis.yml

@@ -5,6 +5,7 @@ python:
   - 3.4
   - 3.5
   - 3.6
+  - 3.7
   - pypy
   - pypy3.5
 

appveyor.yml

@@ -15,9 +15,11 @@ environment:
     - PYTHON: "C:\\Python27"
     - PYTHON: "C:\\Python35"
     - PYTHON: "C:\\Python36"
+    - PYTHON: "C:\\Python37"
     - PYTHON: "C:\\Python27-x64"
     - PYTHON: "C:\\Python35-x64"
     - PYTHON: "C:\\Python36-x64"
+    - PYTHON: "C:\\Python37-x64"
 
 build: off
 

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27, py34, py35, py36, pypy, pypy3
+envlist = py27, py34, py35, py36, py37, pypy, pypy3
 skip_missing_interpreters = True
 
 [testenv]