Update to support test SECRET_KEY generation when running Django <1.1…

…0 tests

Still uses same char set and length of keys generated that Django get_random_secret_key() does.  Not that important since only used for testing anyway.

tests/conftest.py

@@ -1,5 +1,7 @@
+import random
+
 from django.conf import settings
-from django.core.management.utils import get_random_secret_key
+
 
 def pytest_configure():
     settings.configure(
@@ -34,5 +36,8 @@ def pytest_configure():
                 ],
             },
         }],
-        SECRET_KEY=get_random_secret_key()
+        SECRET_KEY=''.join(
+            random.choice("abcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*(-_=+)")
+            for _ in range(50)
+        ),
     )