diff -r 7d016d52be36 -r f2d54d2841f3 src/catedit/api.py
--- a/src/catedit/api.py	Fri Dec 12 16:45:47 2014 +0100
+++ b/src/catedit/api.py	Tue Dec 16 11:14:55 2014 +0100
@@ -1,6 +1,6 @@
 from flask.ext.restful import Resource, fields, Api, reqparse
 from flask import request
-from app import app, cache
+from catedit import app, cache
 from models import Category, CategoryManager
 from rdflib import Graph, RDF
 from utils import *
@@ -8,7 +8,9 @@
 from config import *
 import os
 
+
 api = Api(app)
+logger = app.logger
 
 cat_parser = reqparse.RequestParser()
 cat_parser.add_argument('label', type=str)
@@ -41,29 +43,30 @@
         cat_manager_instance = CategoryManager()
 
         new_property_list = []
-        # print args["property_predicate"]
-        # print args["property_object"]
+
+        logger.debug(args["property_predicate"])
+        logger.debug(args["property_object"])
         for property_predicate, property_object in zip(
                 args["property_predicate"],
                 args["property_object"]):
             if property_object:
                 property_object_to_append = property_object
                 # if URIRef category, we must prefix id with namespace
-                if app.config["PROPERTY_LIST"] \
-                             [property_predicate] \
-                             ["object_type"] == "uriref-category" :
-                    property_object_to_append = app.config["ONTOLOGY_NAMESPACE"] \
-                                                + property_object
-                    # print property_object_to_append
+                if (app.config["PROPERTY_LIST"]
+                              [property_predicate]
+                              ["object_type"]) == "uriref-category":
+                    property_object_to_append = \
+                        app.config["ONTOLOGY_NAMESPACE"] + property_object
+                    logger.debug(property_object_to_append)
                 new_property_list.append((property_predicate,
                                           property_object_to_append))
-        # print new_property_list
+        logger.debug(new_property_list)
         c = cat_manager_instance.load_cat(cat_id)
         c.edit_category(new_description=args["description"],
                         new_label=args["label"],
                         new_other_properties=new_property_list)
         cat_manager_instance.save_cat(c, message=args["commit_message"])
-        # print "put id: "+c.cat_id
+        logger.debug("put id: "+c.cat_id)
         cache.clear()
         return c.cat_graph.serialize(format='turtle'), 200
         # Maybe not send the whole cat back, see if it's worth it
@@ -72,28 +75,28 @@
     def post(self):
         args = cat_parser.parse_args()
         property_list = []
-        # print args["property_predicate"]
-        # print args["property_object"]
+        logger.debug(args["property_predicate"])
+        logger.debug(args["property_object"])
         for property_predicate, property_object in zip(
                 request.form.getlist('property_predicate'),
                 request.form.getlist('property_object')):
             if property_object:
-                if app.config["PROPERTY_LIST"] \
-                             [property_predicate] \
-                             ["object_type"] == "uriref-category":
+                if (app.config["PROPERTY_LIST"]
+                              [property_predicate]
+                              ["object_type"]) == "uriref-category":
                     property_list.append((property_predicate,
                                           app.config["ONTOLOGY_NAMESPACE"]
-                                          +property_object))
+                                          + property_object))
                 else:
                     property_list.append((property_predicate,
                                           property_object))
-        # print property_list
+        logger.debug(property_list)
         c = Category(label=args["label"],
                      description=args["description"],
                      other_properties=property_list)
         cat_manager_instance = CategoryManager()
         cat_manager_instance.save_cat(c, message=args["commit_message"])
-        # print "post id: "+c.cat_id
+        logger.debug("post id: "+c.cat_id)
         cache.clear()
         return c.cat_graph.serialize(format='turtle'), 201
 
@@ -105,7 +108,7 @@
         else:
             message = request.form["delete_message"]
         cat_manager_instance.delete_cat(cat_id, message=message)
-        # print "delete id: "+cat_id
+        logger.debug("delete id: "+cat_id)
         cache.clear()
         return 204