lose the JSON import
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.ext.associationproxy import association_proxy
from sqlalchemy.orm.collections import attribute_mapped_collection
-from sqlalchemy import (Column, Integer, String, Boolean, ForeignKey, JSON,
- Table)
+from sqlalchemy import (Column, Integer, String, Boolean, ForeignKey, Table)
from sqlalchemy.orm import reconstructor, relationship, backref, object_session
import re
import os
