python / python/cpython

run pool.submit in callback when future.set_result

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stdlib type-bug
Dominant language
Python
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Description

BPO 34268
Nosy @gaoxinge

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 2018-07-29.03:25:08.090>
labels = ['type-bug', 'library']
title = 'run pool.submit in callback when future.set_result'
updated_at = <Date 2018-07-29.03:25:08.090>
user = 'https://github.com/gaoxinge'

bugs.python.org fields:

activity = <Date 2018-07-29.03:25:08.090>
actor = 'gaoxinge'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2018-07-29.03:25:08.090>
creator = 'gaoxinge'
dependencies = []
files = []
hgrepos = []
issue_num = 34268
keywords = []
message_count = 1.0
messages = ['322605']
nosy_count = 1.0
nosy_names = ['gaoxinge']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue34268'
versions = ['Python 3.6']

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by tracing the Python library implementation behind pool.submit, Future.set_result, and their callbacks; the payload identifies the affected area only as Lib (Library). Reproduce the callback behavior described in the title and determine the expected ordering or execution semantics before identifying suitable regression coverage.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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