Import or_ in places where it's needed

superset/views/base.py

@@ -46,7 +46,7 @@
 from flask_wtf.csrf import CSRFError
 from flask_wtf.form import FlaskForm
 from pkg_resources import resource_filename
-from sqlalchemy import exc
+from sqlalchemy import exc, or_
 from sqlalchemy.orm import Query
 from werkzeug.exceptions import HTTPException
 from wtforms import Form

superset/views/chart/filters.py

@@ -16,7 +16,7 @@
 # under the License.
 from typing import Any
 
-from sqlalchemy.orm.query import Query
+from sqlalchemy.orm.query import Query, or_
 
 from superset import security_manager
 from superset.utils.filters import get_dataset_access_filters