Add support for Python 3.7

Author: Hasenpfote

.travis.yml

@@ -8,6 +8,10 @@ matrix:
       env: TOXENV=py35
     - python: 3.6
       env: TOXENV=py36
+    - python: 3.7
+      env: TOXENV=py37
+      sudo: required
+      dist: xenial
 
 install:
   - pip install pipenv

setup.py

@@ -34,6 +34,7 @@ def _long_description():
             'Programming Language :: Python :: 3.4',
             'Programming Language :: Python :: 3.5',
             'Programming Language :: Python :: 3.6',
+            'Programming Language :: Python :: 3.7',
             'License :: OSI Approved :: MIT License',
             'Operating System :: OS Independent',
             'Development Status :: 5 - Production/Stable',

tox.ini

@@ -2,7 +2,8 @@
 envlist=
     py34,
     py35,
-    py36
+    py36,
+    py37
 
 [testenv]
 skip_install=true
@@ -11,6 +12,7 @@ basepython=
     py34: python3.4
     py35: python3.5
     py36: python3.6
+    py37: python3.7
 
 deps=
     pipenv