python / python/cpython

CFunctionType object should be hashable in Python

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3.9 (EOL) interpreter-core type-feature
Dominant language
Python
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Description

BPO 43509

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 2021-03-16.03:10:32.120>
labels = ['interpreter-core', 'type-feature', '3.9']
title = 'CFunctionType object should be hashable in Python'
updated_at = <Date 2021-03-22.07:11:17.822>
user = 'https://bugs.python.org/xxm'

bugs.python.org fields:

activity = <Date 2021-03-22.07:11:17.822>
actor = 'xxm'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2021-03-16.03:10:32.120>
creator = 'xxm'
dependencies = []
files = []
hgrepos = []
issue_num = 43509
keywords = []
message_count = 1.0
messages = ['388804']
nosy_count = 1.0
nosy_names = ['xxm']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue43509'
versions = ['Python 3.9']

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Begin by locating the CFunctionType implementation in CPython and examining its current equality and hashing behavior. Check nearby tests for callable or C function objects, then define and verify the expected hash behavior so CFunctionType objects can be used as hashable values.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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