Add six as a dependency.

mblayman · mblayman · commit 7e6616b0ef96 · 2017-12-03T15:25:53.000-05:00
Fixes django-json-api#389
diff --git a/setup.py b/setup.py
@@ -101,6 +101,7 @@ def get_package_data(package):
         'inflection>=0.3.0',
         'djangorestframework>=3.1.0',
         'django',
+        'six',
     ],
     setup_requires=pytest_runner + sphinx + wheel,
     tests_require=[
