python / python/cpython

get_lock() method is not present for Values created using multiprocessing.Manager()

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3.7 (EOL) docs stdlib topic-multiprocessing
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Description

BPO 35786
Nosy @pfmoore, @pitrou, @tjguk, @zware, @MojoVampire, @applio, @websurfer5, @ian-bertolacci

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 2019-01-19.21:50:32.910>
labels = ['3.7', 'library', 'docs']
title = 'get_lock() method is not present for Values created using multiprocessing.Manager()'
updated_at = <Date 2020-08-15.01:55:10.127>
user = 'https://bugs.python.org/LorenzoPersichetti'

bugs.python.org fields:

activity = <Date 2020-08-15.01:55:10.127>
actor = 'ned.deily'
assignee = 'docs@python'
closed = False
closed_date = None
closer = None
components = ['Documentation', 'Library (Lib)']
creation = <Date 2019-01-19.21:50:32.910>
creator = 'Lorenzo Persichetti'
dependencies = []
files = []
hgrepos = []
issue_num = 35786
keywords = []
message_count = 6.0
messages = ['334070', '334106', '349155', '349156', '349191', '373174']
nosy_count = 11.0
nosy_names = ['paul.moore', 'pitrou', 'tim.golden', 'docs@python', 'zach.ware', 'nemeskeyd', 'josh.r', 'davin', 'Lorenzo Persichetti', 'Jeffrey.Kintscher', 'IanBertolacci']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue35786'
versions = ['Python 3.6', 'Python 3.7']

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 with the Python multiprocessing documentation covering Manager() and Value objects, then compare it with the documented multiprocessing.Value API and its get_lock() method. Clarify the documented API difference for values created through Manager(), and consider the work done when users can determine whether get_lock() is available and what to use instead.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
documentation
Issue type
Documentation
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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