change import order

app/models.py

@@ -1,15 +1,13 @@
 from enum import Enum
+from secrets import token_hex
+from datetime import datetime
+from json import JSONEncoder
+from flask_login import UserMixin
 from werkzeug.security import generate_password_hash, check_password_hash
-from . import db, login
 from sqlalchemy.ext.associationproxy import association_proxy
 from sqlalchemy.sql import func
-from secrets import token_hex
-from flask_login import UserMixin
-import json
-from json import JSONEncoder
-from datetime import datetime
-import pytz
 from flask_moment import Moment
+from app import db, login
 
 moment = Moment()