ctypes Structures with subclassed types in the _fields_ list

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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
backend

Research direction

Start with showbug.py, which demonstrates the bitfield bug, and inspect bitfields.patch to understand the proposed change. Reproduce the behavior in the ctypes area and determine whether subclassed types in a Structure's fields list are handled correctly; done means the demonstrated bug is resolved and the patch's intended behavior is verified.

Written by the indexing model from the issue text.

Description

3.7 (EOL) topic-ctypes type-bug
BPO 15459
Nosy @theller, @amauryfa, @abalkin, @meadori, @tsparber
Files
  • showbug.py: demonstrates the bitfield bug
  • bitfields.patch
    		•

    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 2012-07-26.18:35:05.031>
labels = ['ctypes', 'type-bug', '3.7']
title = 'ctypes Structures with subclassed types in the _fields_ list'
updated_at = <Date 2019-07-30.16:24:58.405>
user = 'https://github.com/theller'

    bugs.python.org fields:

    activity = <Date 2019-07-30.16:24:58.405>
actor = 'tsparber'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['ctypes']
creation = <Date 2012-07-26.18:35:05.031>
creator = 'theller'
dependencies = []
files = ['26529', '26530']
hgrepos = []
issue_num = 15459
keywords = ['patch', 'needs review']
message_count = 4.0
messages = ['166496', '166497', '167285', '348756']
nosy_count = 6.0
nosy_names = ['theller', 'amaury.forgeotdarc', 'belopolsky', 'Arfrever', 'meador.inge', 'tsparber']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue15459'
versions = ['Python 2.7', 'Python 3.2', 'Python 3.3', 'Python 3.5', 'Python 3.6', 'Python 3.7']

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