Remove tempoarary output_columns variable.

python/lsst/ap/association/mapApData.py

@@ -157,14 +157,13 @@ def __init__(self, inputSchema, **kwargs):
     def _create_bit_pack_mappings(self):
         """Setup all flag bit packings.
         """
-        output_columns = []
+        self.bit_pack_columns = []
         with open(self.config.flagMap) as yaml_stream:
             table_list = list(yaml.load_all(yaml_stream))
             for table in table_list:
                 if table['tableName'] == 'DiaSource':
-                    output_columns = table['columns']
+                    self.bit_pack_columns = table['columns']
                     break
-        self.bit_pack_columns = output_columns
 
         # Test that all flags requested are present in both the input and
         # output schemas.
@@ -281,14 +280,13 @@ class UnpackPpdbFlags(object):
     """
 
     def __init__(self, flag_map_file, table_name):
-        output_columns = []
+        self.bit_pack_columns = []
         with open(flag_map_file) as yaml_stream:
             table_list = list(yaml.load_all(yaml_stream))
             for table in table_list:
                 if table['tableName'] == table_name:
-                    output_columns = table['columns']
+                    self.bit_pack_columns = table['columns']
                     break
-        self.bit_pack_columns = output_columns
 
         self.output_flag_columns = {}