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Prepare CPython for opaque PyObject structure. #85360
Description
| BPO | 41188 |
|---|---|
| Nosy | @ronaldoussoren, @vstinner, @WildCard65 |
| PRs |
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 2020-07-01.17:43:02.332>
labels = ['interpreter-core', 'expert-C-API', 'type-feature', '3.10']
title = 'Prepare CPython for opaque PyObject structure.'
updated_at = <Date 2020-07-07.19:55:22.137>
user = 'https://github.com/WildCard65'bugs.python.org fields:
activity = <Date 2020-07-07.19:55:22.137>
actor = 'ronaldoussoren'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core', 'C API']
creation = <Date 2020-07-01.17:43:02.332>
creator = 'WildCard65'
dependencies = []
files = []
hgrepos = []
issue_num = 41188
keywords = ['patch']
message_count = 1.0
messages = ['372775']
nosy_count = 3.0
nosy_names = ['ronaldoussoren', 'vstinner', 'WildCard65']
pr_nums = ['21262']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue41188'
versions = ['Python 3.10']
Activity
WildCard65 commentedon Jul 1, 2020
The goal of bpo-39573 is to make "PyObject" and opaque structure in the limited API.
To do that, a few mandatory changes will be required to CPython in order to allow for seamless implementation.
Namely:
User types need to get away from directly referencing PyObject.
-- Example: 'PyType_Type.tp_obj_offset' would be the value of "sizeof(PyVarObject)".
-- For custom types with another base: The value would be calculated from the base's "tp_obj_offset" + "tp_basicsize"
Create a linkable static library to facility method calls requiring internal implementation.
iritkatriel commentedon Jun 25, 2022
The PR was closed by the OP after a core dev requested changes. So I am assuming the project was abandoned and closing the issue as well.