Update django and rest-framework versions

.travis.yml

@@ -22,9 +22,9 @@ matrix:
       python: 3.6
     - env: TOXENV=py34-django20
       python: 3.4
-    - env: TOXENV=py35-django20
+    - env: TOXENV=py35-django21
       python: 3.5
-    - env: TOXENV=py36-django20
+    - env: TOXENV=py36-django21
       python: 3.6
 
 branches:

requirements.txt

@@ -1,2 +1,2 @@
 six
-djangorestframework>=3.3,<3.9
+djangorestframework>=3.9,<3.10

tests/settings.py

@@ -3,7 +3,6 @@
 TEST_PERFORMANCE = False
 
 DEBUG = True
-TEMPLATE_DEBUG = DEBUG
 
 DATABASES = {
     'default': {
@@ -55,6 +54,7 @@
                 'django.contrib.auth.context_processors.auth',
                 'django.contrib.messages.context_processors.messages',
             ],
+            'debug': DEBUG,
         },
     },
 ]
@@ -72,7 +72,6 @@
 STATIC_ROOT = '%s/static/' % SITE_ROOT
 STATIC_URL = '/static/'
 
-TEMPLATE_STRING_IF_INVALID = 'INVALID_TEMPLATE: %s END_INVALID_TEMPLATE'
 
 # local settings must be imported before test runner otherwise they'll be ignored
 try:

tox.ini

@@ -2,6 +2,7 @@
 envlist =
     py{27,34,35,36,py,py3}-django111{,-pytest}
     py{34,35,36,py3}-django20{,-pytest}
+    py{35,36,py3}-django21{,-pytest}
 
 [testenv]
 usedevelop = true
@@ -17,6 +18,7 @@ commands =
 deps =
     django111: Django>=1.11,<2.0
     django20: Django>=2.0,<2.1
+    django21: Django>=2.1,<2.2
     -rrequirements-test.txt
     pytest: pytest
     pytest: pytest-django