small code changes in core and views

circle/occi/occi_core.py

@@ -166,7 +166,7 @@ class Link(Entity):
                                 kwargs)
 
     def render_as_json(self):
-        json = {"kind": self.kind, "id": self.id, "source" : self.source,
+        json = {"kind": self.kind, "id": self.id, "source": self.source,
                 "target": self.target}
         if hasattr(self, "mixins"):
             json["mixins"] = self.mixins

circle/occi/views.py

@@ -4,9 +4,9 @@
 
 from django.views.generic import View
 from django.contrib.auth import logout
-from django.http import HttpResponse, JsonResponse
-from vm.models.instance import Instance
-from common.models import HumanReadableException
+from django.http import JsonResponse
+# from vm.models.instance import Instance
+# from common.models import HumanReadableException
 from forms import OcciAuthForm
 import json
 from django.views.decorators.csrf import ensure_csrf_cookie
@@ -48,6 +48,7 @@ class OcciLogoutView(View):
         result = {"result": "OK"}
         return JsonResponse(result)
 
+
 class TestView(View):
     """ TEST VIEW """
     def get(self, request, *args, **kwargs):