User attributes are supposed to be keyword arguments

Large-app-how-to.md

@@ -286,8 +286,8 @@ This decorator is checking that g.user has a value assigned to it, otherwise it
       form = RegisterForm(request.form)
       if form.validate_on_submit():
         # create an user instance not yet stored in the database
-        user = User(form.name.data, form.email.data, \
-          generate_password_hash(form.password.data))
+        user = User(name=form.name.data, email=form.email.data, \
+          password=generate_password_hash(form.password.data))
         # Insert the record in our database and commit it
         db.session.add(user)
         db.session.commit()