Fixes from tests

cps/opds.py

@@ -28,7 +28,7 @@ from functools import wraps
 from flask import Blueprint, request, render_template, Response, g, make_response, abort
 from flask_login import current_user
 from sqlalchemy.sql.expression import func, text, or_, and_
-
+from werkzeug.security import check_password_hash
 
 from . import constants, logger, config, db, calibre_db, ub, services, get_locale, isoLanguages
 from .helper import get_download_link, get_book_cover