Fix CI and Update Tested Versions

.github/workflows/test.yml

@@ -6,34 +6,78 @@ jobs:
   build:
 
     runs-on: ubuntu-latest
+    services:
+      memcached:
+        image: memcached
+        ports:
+          - 11211:11211
     strategy:
+      fail-fast: false
       matrix:
-        python-version: [3.5, 3.6, 3.7, 3.8]
-        django: [2.2, 3.0, 3.1, master]
+        python-version: ['3.6', '3.7', '3.8', '3.9']
+        django: ['2.2', '3.1', '3.2', 'main']
+        memcache: ['pylibmc', 'pymemcache', 'python-memcached']
         exclude:
-          - python-version: 3.5
-            django: 3.0
-          - python-version: 3.5
-            django: 3.1
-          - python-version: 3.5
-            django: master
-          - python-version: 3.6
-            django: master
-          - python-version: 3.7
-            django: master
+          - python-version: '3.6'
+            django: 'main'
+            memcache: 'pylibmc'
+          - python-version: '3.6'
+            django: 'main'
+            memcache: 'pymemcache'
+          - python-version: '3.6'
+            django: 'main'
+            memcache: 'python-memcached'
+          - python-version: '3.7'
+            django: 'main'
+            memcache: 'pylibmc'
+          - python-version: '3.7'
+            django: 'main'
+            memcache: 'pymemcache'
+          - python-version: '3.7'
+            django: 'main'
+            memcache: 'python-memcached' 
+
+          - memcache: 'pymemcache'
+            django: '2.2'
+            python-version: '3.6'
+          - memcache: 'pymemcache'
+            django: '2.2'
+            python-version: '3.7'
+          - memcache: 'pymemcache'
+            django: '2.2'
+            python-version: '3.8'
+          - memcache: 'pymemcache'
+            django: '2.2'
+            python-version: '3.9'
+          - memcache: 'pymemcache'
+            django: '3.1'
+            python-version: '3.6'
+          - memcache: 'pymemcache'
+            django: '3.1'
+            python-version: '3.7'
+          - memcache: 'pymemcache'
+            django: '3.1'
+            python-version: '3.8'
+          - memcache: 'pymemcache'
+            django: '3.1'
+            python-version: '3.9'
 
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Install PyLibMC Dependencies
+      if: ${{ matrix.memcache == 'pylibmc' }}
+      run: |
+        sudo apt-get install -y libmemcached-dev zlib1g-dev
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        if [[ ${{ matrix.django }} != master ]]; then pip install --pre -q "Django>=${{ matrix.django }},<${{ matrix.django }}.99"; fi
-        if [[ ${{ matrix.django }} == master ]]; then pip install https://github.com/django/django/archive/master.tar.gz; fi
-        pip install flake8 django-redis python3-memcached
+        if [[ ${{ matrix.django }} != main ]]; then pip install --pre -q "Django>=${{ matrix.django }},<${{ matrix.django }}.99"; fi
+        if [[ ${{ matrix.django }} == main ]]; then pip install https://github.com/django/django/archive/main.tar.gz; fi
+        pip install flake8 django-redis ${{ matrix.memcache }} 
     - name: Lint with flake8
       run: |
         ./run.sh flake8

test_settings.py

@@ -1,3 +1,14 @@
+try:
+    import pylibmc  # noqa: F401
+    memcache_backend = "PyLibMCCache"
+except ImportError:
+    try:
+        import pymemcache  # noqa: F401
+        memcache_backend = "PyMemcacheCache"
+    except ImportError:
+        import memcache  # noqa: F401
+        memcache_backend = "MemcachedCache"
+
 SECRET_KEY = 'ratelimit'
 
 INSTALLED_APPS = (
@@ -12,8 +23,8 @@
         'LOCATION': 'ratelimit-tests',
     },
     'connection-errors': {
-        'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
-        'LOCATION': 'test-connection-errors',
+        'BACKEND': f'django.core.cache.backends.memcached.{memcache_backend}',
+        'LOCATION': '127.0.0.1:57823',
     },
     'connection-errors-redis': {
         'BACKEND': 'django_redis.cache.RedisCache',

tox.ini

@@ -1,20 +1,21 @@
 [tox]
 envlist =
-    py34-django{111,20},
-    py35-django{111,20,21,22b},
-    py36-django{111,20,21,22b,master},
-    py37-django{20,21,22b,master},
-    pypy35-django{111,20,21,22b,master},
+    py36-django-{22,31,32}-{pylibmc,python-memcached,pymemcache},
+    py37-django-{22,31,32}-{pylibmc,python-memcached,pymemcache},
+    py38-django{22,31,32,main}-{pylibmc,python-memcached,pymemcache},
+    py39-django{22,31,32,main}-{pylibmc,python-memcached,pymemcache},
+    pypy36-django{22,31,32,main}-{pylibmc,python-memcached,pymemcache},
 
 [testenv]
 deps =
-    django111: Django>=1.11,<1.12
-    django20: Django>=2.0,<2.1
-    django21: Django>=2.1,<2.2
-    django22b: https://github.com/django/django/archive/stable/2.2.x.tar.gz
-    djangomaster: https://github.com/django/django/archive/master.tar.gz
-    python3-memcached>=1.51
-    django-redis==4.10.0
+    django22: Django>=2.2,<3.0
+    django31: Django>=3.1,<3.2
+    django32: Django>=3.2,<3.3
+    djangomain: -e git+https://github.com/django/django.git#egg=django
+    python-memcached
+    pylibmc
+    pymemcache
+    django-redis
     flake8
 
 commands =