Python exception object is different after pickle.dumps and pickle.loads

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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
backend

Research direction

Start by reviewing screenshot.png and the linked BPO issue 45112, since the migrated issue text does not include a reproduction or expected result. Locate the relevant pickle and exception tests in CPython, reproduce the difference after dumps and loads, and verify that the round-tripped exception matches the intended behavior.

Written by the indexing model from the issue text.

Description

3.9 (EOL) interpreter-core type-bug
BPO 45112
Nosy @rhettinger, @iritkatriel
Files
  • screenshot.png
    		•

    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 2021-09-06.10:14:34.681>
labels = ['type-bug', '3.9']
title = 'Python exception object is different after pickle.dumps and pickle.loads'
updated_at = <Date 2021-09-06.16:40:31.474>
user = 'https://bugs.python.org/yonghengzero'

    bugs.python.org fields:

    activity = <Date 2021-09-06.16:40:31.474>
actor = 'rhettinger'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2021-09-06.10:14:34.681>
creator = 'yonghengzero'
dependencies = []
files = ['50262']
hgrepos = []
issue_num = 45112
keywords = []
message_count = 4.0
messages = ['401128', '401135', '401137', '401153']
nosy_count = 3.0
nosy_names = ['rhettinger', 'iritkatriel', 'yonghengzero']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'resolved'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue45112'
versions = ['Python 3.9']

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