Added Python 3.7 to testing matrix (#494)

* Added Python 3.7 to testing matrix

* Fixed travis syntax

* Dealing with Travis not supporting 3.7

* Get 3.7 on all envs

Author: Ross Mechanic

.travis.yml

@@ -18,11 +18,13 @@ install:
   - pip install -U flake8==3.6.0
   - pip install -U $DJANGO
   - if [[ $TRAVIS_PYTHON_VERSION == '3.6' ]]; then pip install black; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == '3.7' ]]; then pip install black; fi
   - pip freeze
 
 script:
   - flake8 simple_history
   - if [[ $TRAVIS_PYTHON_VERSION == '3.6' ]]; then black --check simple_history; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == '3.7' ]]; then black --check simple_history; fi
   - coverage run setup.py test
 
 matrix:
@@ -33,5 +35,18 @@ matrix:
       env: DJANGO="Django>=2.1,<2.2"
     - python: 3.4
       env: DJANGO="Django>=2.1,<2.2"
+  include:
+    - python: 3.7
+      env: DJANGO="Django>=1.11,<1.12"
+      dist: xenial
+      sudo: true
+    - python: 3.7
+      env: DJANGO="Django>=2.0,<2.1"
+      dist: xenial
+      sudo: true
+    - python: 3.7
+      env: DJANGO="Django>=2.1,<2.2"
+      dist: xenial
+      sudo: true
 
 after_success: codecov

README.rst

@@ -30,13 +30,13 @@ django-simple-history stores Django model state on every create/update/delete.
 
 This app supports the following combinations of Django and Python:
 
-==========  ==================
+==========  =======================
   Django      Python
-==========  ==================
-1.11        2.7, 3.4, 3.5, 3.6
-2.0         3.4, 3.5, 3.6
-2.1         3.5, 3.6
-==========  ==================
+==========  =======================
+1.11        2.7, 3.4, 3.5, 3.6, 3.7
+2.0         3.4, 3.5, 3.6, 3.7
+2.1         3.5, 3.6, 3.7
+==========  =======================
 
 Getting Help
 ------------

setup.py

@@ -34,6 +34,7 @@
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
         "License :: OSI Approved :: BSD License",
     ],
     python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",

tox.ini

@@ -1,9 +1,9 @@
 [tox]
 envlist =
-    py{27,34,35,36}-django111,
-    py{34,35,36}-django20,
-    py{35,36}-django21,
-    py{35,36}-djangotrunk,
+    py{27,34,35,36,37}-django111,
+    py{34,35,36,37}-django20,
+    py{35,36,37}-django21,
+    py{35,36,37}-djangotrunk,
     docs, flake8