Fix some simple errors.

mediagoblin/db/sql/convert.py

@@ -19,8 +19,8 @@ from copy import copy
 from mediagoblin.init import setup_global_and_app_config
 
 from mediagoblin.db.sql.base import Session
-from mediagoblin.db.sql.models_0 import Base_v0
-from mediagoblin.db.sql.models_0 import (User, MediaEntry, MediaComment,
+from mediagoblin.db.sql.models_v0 import Base_v0
+from mediagoblin.db.sql.models_v0 import (User, MediaEntry, MediaComment,
     Tag, MediaTag, MediaFile, MediaAttachmentFile, MigrationData,
     ImageData, VideoData)
 from mediagoblin.db.sql.open import setup_connection_and_db_from_config as \

mediagoblin/db/sql/models_v0.py

@@ -24,8 +24,9 @@ import sys
 
 from sqlalchemy import (
     Column, Integer, Unicode, UnicodeText, DateTime, Boolean, ForeignKey,
-    UniqueConstraint, PrimaryKeyConstraint, SmallInteger)
-from sqlalchemy.orm import relationship
+    UniqueConstraint, PrimaryKeyConstraint, SmallInteger, Float)
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import relationship, backref
 from sqlalchemy.orm.collections import attribute_mapped_collection
 from sqlalchemy.sql.expression import desc
 from sqlalchemy.ext.associationproxy import association_proxy