Irit Katriel added the comment:
Since nobody followed up on this for 5 years, I would suggest that (if you are
still interested in this) you raise this on python-ideas and ideally also
implement and submit a patch.
If this is abandoned I will close the issue in a couple of weeks.
--
New submission from Aron Bordin:
I'm facing some situations where would be helpful to be able to add a default
function callback when calling the Executor.map. So, when making calls with
this command we could get the executor result easily.
I think that we could provide a callback parameter to
