caught and stored exception creates a reference cycle outside its traceback

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#75,188 4 comments 0 reactions 0 assignees View on GitHub

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Assessment

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

Research direction

The report concerns Python's interpreter core and a reference cycle caused by catching and storing an exception, but it names no source files, tests, or entry points. Start by reproducing the reported cycle and tracing the exception lifetime; done means the cycle is eliminated without changing the intended traceback behavior and a regression test covers it.

Written by the indexing model from the issue text.

Description

interpreter-core type-bug
BPO 31005
Nosy @mdickinson, @VojtechFried

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 2017-07-24.09:05:19.781>
labels = ['interpreter-core', 'type-bug']
title = 'caught and stored exception creates a reference cycle outside its traceback'
updated_at = <Date 2017-07-24.12:59:36.984>
user = 'https://github.com/VojtechFried'

bugs.python.org fields:

activity = <Date 2017-07-24.12:59:36.984>
actor = 'vojtechfried'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2017-07-24.09:05:19.781>
creator = 'vojtechfried'
dependencies = []
files = []
hgrepos = []
issue_num = 31005
keywords = []
message_count = 4.0
messages = ['298936', '298961', '298962', '298964']
nosy_count = 2.0
nosy_names = ['mark.dickinson', 'vojtechfried']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue31005'
versions = ['Python 3.6']

Dominant language
Python
Stars
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Forks
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Avg merge
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Merged PRs (30d)
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