Add Python 3.7 to Travis

.travis.yml

@@ -1,9 +1,13 @@
 language: python
+dist: xenial
 python:
   - "2.7"
   - "3.4"
   - "3.5"
   - "3.6"
+  - "3.7"
+services:
+  - postgresql
 before_install:
   - CONFIG_FILE=$(sudo -u postgres psql postgres -c "SHOW config_file;" -q -t | head -1)
   - 'CONFIG_FILE="${CONFIG_FILE:1}"'

CHANGES.rst

@@ -4,13 +4,13 @@ Changes
 1.2 (unreleased)
 ----------------
 
-- Nothing changed yet.
+* Add support for Python 3.7
 
 
 1.1 (2019-01-03)
 ----------------
 
-- Add support to MySQL using pymysql.
+* Add support to MySQL using pymysql.
 
 
 1.0 (2018-01-31)

setup.py

@@ -33,6 +33,7 @@
         "Programming Language :: Python :: 3.4",
         "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
         "License :: OSI Approved :: Zope Public License",
         "Topic :: Software Development :: Libraries :: Python Modules",
     ],

tox.ini

@@ -4,6 +4,7 @@ envlist =
     py34,
     py35,
     py36,
+    py37,
 # pypy fails because of some weird test error that might be an issue with
 # sqlalchemy, pypy, and issues with object identity.