Fun

The fun optional task attribute registers how much light-hearted pleasure, enjoyment, or amusement does the execution of the task gives.

As with willpower, if your tasks have this property, it can help you determine the tasks to be done during the sprint and in what order so as not to burn yourself out.

To set the value of a task use the fun keyword:

$: pydo add Go hiking fun:4
  [+] Added task 6: Go hiking

As with the priority, I use a range of values from 0 to 5 but the parameter allows any integer.