convert redis returned binaries to strings

inventory_provider/data_routes.py

@@ -48,5 +48,5 @@ def routers():
         host=redis_config["hostname"],
         port=redis_config["port"])
     return Response(
-        json.dumps(list(r.keys("*"))),
+        json.dumps(list([k.decode("utf-8") for k in r.keys("*")])),
         mimetype="application/json")

test/test_data_routes.py

@@ -184,7 +184,7 @@ class MockedRedis(object):
         MockedRedis.db[key] = value
 
     def keys(self, *args, **kwargs):
-        return MockedRedis.db.keys()
+        return list([k.encode("utf-8") for k in MockedRedis.db.keys()])
 
 
 def test_routers_list(mocker, client):