turn output of type() to string in log line

pymods/irods_utils/irods_utils.py

@@ -205,8 +205,8 @@ def pydict_to_irods_avus( coll_or_obj, metadata_dict ):
     # Load the dict into a list of AVU ops
     for key, value in metadata_dict.items():
         logging.debug( "Create AVU OP list. ipath: " + coll_or_obj.path
-                     + " key: " + key + " type(key): " + type(key)
-                     + " value: " + value + " type(value): " + type(value) )
+                     + " key: " + key + " type(key): " + str(type(key))
+                     + " value: " + value + " type(value): " + str(type(value)) )
 
         if value == "":
             value = " "