Merge pull request #14 from novafloss/9-deprecate-django16-django17

graceful deprecation of Django 1.6 and 1.7

Author: brunobord

CHANGELOG.md

@@ -2,8 +2,11 @@
 
 ## master (unreleased)
 
+**Warning**: this version will be the last to support Django 1.6 or 1.7. Starting of the next version, we'll only support 1.8+.
+
 - Added Django 1.9 support (#9).
 - Python 3.4 jobs are being tested in travis (#10).
+- Deprecate Django 1.6 and 1.7 support (#9).
 
 ## 1.0.0 (2016-06-23)
 

chunkator/__init__.py

@@ -1,6 +1,19 @@
 """
 Toolbox for chunking / slicing querysets
 """
+import warnings
+
+from distutils.version import StrictVersion
+import django
+
+if StrictVersion(django.get_version()) < StrictVersion('1.8.0'):
+    with warnings.catch_warnings():
+        # This will force the warning to be triggered.
+        warnings.simplefilter("always")
+        warnings.warn(
+            "Django 1.7 and lower versions will soon be deprecated. Please upgrade.",  # noqa
+            PendingDeprecationWarning
+        )
 
 
 class MissingPkFieldException(Exception):