Add Django2.2 and Django3.0 releases to the travis tests.

Add Python 3.8 to the tests.

.travis.yml

@@ -5,18 +5,20 @@ env:
  - DJANGO_VERSION=1.11
  - DJANGO_VERSION=2.0
  - DJANGO_VERSION=2.1
- - DJANGO_VERSION=2.2b
+ - DJANGO_VERSION=2.2
+ - DJANGO_VERSION=3.0
  - DJANGO_VERSION=master
 python:
  - "3.4"
  - "3.5"
  - "3.6"
  - "3.7"
+ - "3.8"
  - "pypy3.5"
 install:
  - if [[ $DJANGO_VERSION != master ]]; then pip install --pre -q "Django>=${DJANGO_VERSION},<${DJANGO_VERSION}.99"; fi
  - if [[ $DJANGO_VERSION == master ]]; then pip install https://github.com/django/django/archive/master.tar.gz; fi
- - pip install django-redis==4.10.0 flake8 python3-memcached>=1.51
+ - pip install django-redis>=4.10.0 flake8 python3-memcached>=1.51
 script:
  - ./run.sh test
  - ./run.sh flake8
@@ -25,9 +27,13 @@ matrix:
     - python: "3.4"
       env: DJANGO_VERSION=2.1
     - python: "3.4"
-      env: DJANGO_VERSION=2.2b
+      env: DJANGO_VERSION=2.2
+    - python: "3.4"
+      env: DJANGO_VERSION=3.0
     - python: "3.4"
       env: DJANGO_VERSION=master
+    - python: "3.5"
+      env: DJANGO_VERSION=3.0
     - python: "3.5"
       env: DJANGO_VERSION=master
     - python: "pypy3.5"
@@ -37,3 +43,5 @@ matrix:
       env: DJANGO_VERSION=master
     - python: "3.7"
       env: DJANGO_VERSION=master
+    - python: "3.8"
+      env: DJANGO_VERSION=master

setup.py

@@ -13,26 +13,27 @@
     url='https://github.com/jsocol/django-ratelimit',
     license='Apache Software License',
     packages=find_packages(exclude=['test_settings']),
-    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*',
+    python_requires='>=3.4',
     include_package_data=True,
     package_data={'': ['README.rst']},
     classifiers=[
         'Development Status :: 5 - Production/Stable',
         'Environment :: Web Environment',
         'Framework :: Django',
-        'Framework :: Django :: 1.11',
         'Framework :: Django :: 2.0',
         'Framework :: Django :: 2.1',
+        'Framework :: Django :: 2.2',
+        'Framework :: Django :: 3.0',
         'Intended Audience :: Developers',
         'License :: OSI Approved :: Apache Software License',
         'Operating System :: OS Independent',
         'Programming Language :: Python',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Software Development :: Libraries :: Python Modules',