Remove unsupported python & Django test cases

Author: Jay Hale

.travis.yml

@@ -11,9 +11,6 @@ install:
     pip install -e .[test]
     pip install psycopg2 # Required for Django postgres fields testing
     pip install django==$DJANGO_VERSION
-    if (($(echo "$DJANGO_VERSION <= 1.9" | bc -l))); then # DRF dropped 1.8 and 1.9 support at 3.7.0
-      pip install djangorestframework==3.6.4
-    fi
     python setup.py develop
   elif [ "$TEST_TYPE" = lint ]; then
     pip install flake8
@@ -44,13 +41,11 @@ matrix:
     env: TEST_TYPE=build DJANGO_VERSION=2.0
   - python: '3.6'
     env: TEST_TYPE=build DJANGO_VERSION=2.0
-  - python: '2.7'
-    env: TEST_TYPE=build DJANGO_VERSION=1.8
-  - python: '2.7'
-    env: TEST_TYPE=build DJANGO_VERSION=1.9
-  - python: '2.7'
-    env: TEST_TYPE=build DJANGO_VERSION=1.10
-  - python: '2.7'
+  - python: '3.5'
+    env: TEST_TYPE=build DJANGO_VERSION=2.1
+  - python: '3.6'
+    env: TEST_TYPE=build DJANGO_VERSION=2.1
+  - python: '3.6'
     env: TEST_TYPE=lint
 deploy:
   provider: pypi

setup.py

@@ -19,7 +19,8 @@
     "coveralls",
     "mock",
     "pytz",
-    "django-filter>=2",
+    "django-filter<2;python_version<'3'",
+    "django-filter>=2;python_version>='3'",
     "pytest-django>=3.3.2",
 ] + rest_framework_require
 
@@ -39,9 +40,9 @@
         "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.3",
         "Programming Language :: Python :: 3.4",
         "Programming Language :: Python :: 3.5",
+        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: Implementation :: PyPy",
     ],
     keywords="api graphql protocol rest relay graphene",