Add callback parameter to concurrent.futures.Executor.map

[aron-bordin]

BPO	29906
Nosy	@aron-bordin, @iritkatriel

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2017-03-26.01:18:34.299>
labels = ['3.7', 'type-feature', 'library']
title = 'Add callback parameter to concurrent.futures.Executor.map'
updated_at = <Date 2022-03-19.20:15:50.938>
user = 'https://github.com/aron-bordin'

bugs.python.org fields:

activity = <Date 2022-03-19.20:15:50.938>
actor = 'iritkatriel'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2017-03-26.01:18:34.299>
creator = 'aron.bordin'
dependencies = []
files = []
hgrepos = []
issue_num = 29906
keywords = []
message_count = 2.0
messages = ['290502', '415567']
nosy_count = 2.0
nosy_names = ['aron.bordin', 'iritkatriel']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'pending'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue29906'
versions = ['Python 3.7']

[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 the map function, that adds the callable to the future (similar to add_done_callback).

[iritkatriel]

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.