Accept Merge Request #2046: (feature/6694 -> develop)

Merge Request: 增加import

Created By: @胡尧
Accepted By: @胡尧
URL: https://jikimo-hn.coding.net/p/jikimo_sfs/d/jikimo_sf/git/merge/2046?initial=true

sf_maintenance/models/sf_maintenance.py

@@ -2,6 +2,8 @@
 import json
 import base64
 import logging
+import qrcode
+from io import BytesIO
 from datetime import timedelta
 import requests
 from odoo.addons.sf_base.commons.common import Common