Add notification mechanism

[vict0rsch]

Using ntfy_wrapper I implemented a notification mechanism for

• Job starts
• Job has error
• Job ends (notify Overall MAE)

To do:

• pip install ntfy_wrapper in your env
• then py-ntfy init
• then subscribe to the topic printed by the previous command ^
  • subscribe on a desktop local web app
  • install a mobile app

[vict0rsch]

The gist of it is that Logger now has a fault-safe method .ntfy that lazy-loads a self._ntfy attribute as a ntfy_wrapper.Notifier and uses it to dispatch notifications.

If anything wrong happens within that function, a warning is printed and the function is disabled (by setting a global var NTFY_OK to False).

This mechanism will also prevent errors in the case of ntfy_wrapper not being installed or its config file (.ntfy.conf) being malformed.

[vict0rsch]

Merging with QM9