Still need check_password_hash Revert "No longer required here"

This reverts commit 5b14dd078a.

app.py

@@ -1,5 +1,6 @@
 from flask import Flask, request, jsonify
 from flask_httpauth import HTTPBasicAuth
+from werkzeug.security import check_password_hash
 from ipaddress import ip_address
 import logging
 import re