import os
basedir = os.path.abspath(os.path.dirname(__file__))

SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, '/store/mnist.db')

@@ -93,17 +93,16 @@
 qlite://
-/
 ' + os.p

Fix database config * Extra slash in DB URI was stopping it from loading