PyThreadState_Next not thread safe

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
30/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
python
Domain
operating-systems

Research direction

Start by locating PyThreadState_Next in CPython's interpreter-core sources and review the linked BPO report. The issue names no file or test, so first determine the intended thread-safe behavior and the affected concurrency paths. Done should include a focused regression test demonstrating the corrected behavior.

Written by the indexing model from the issue text.

Description

interpreter-core topic-C-API
BPO 1021318
Nosy @pitrou, @vstinner, @devdanzin, @jd, @ericsnowcurrently, @serhiy-storchaka

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 2004-09-02.16:56:47.000>
labels = ['interpreter-core', '3.9']
title = 'PyThreadState_Next not thread safe'
updated_at = <Date 2020-05-15.01:09:40.629>
user = 'https://bugs.python.org/jpe'

bugs.python.org fields:

activity = <Date 2020-05-15.01:09:40.629>
actor = 'vstinner'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2004-09-02.16:56:47.000>
creator = 'jpe'
dependencies = []
files = []
hgrepos = []
issue_num = 1021318
keywords = []
message_count = 14.0
messages = ['60562', '82072', '114376', '358187', '358188', '358189', '358190', '358191', '358192', '358261', '358262', '358347', '364094', '368895']
nosy_count = 7.0
nosy_names = ['jpe', 'pitrou', 'vstinner', 'ajaksu2', 'jd', 'eric.snow', 'serhiy.storchaka']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue1021318'
versions = ['Python 3.9']

Dominant language
Python
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