python / python/cpython

Inferred Optional type of wrapper function arguments

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topic-typing type-bug
Dominant language
Python
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Avg merge
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Merged PRs (30d)
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Description

BPO 42921
Nosy @wyfo

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 2021-01-13.07:48:07.965>
labels = ['type-bug']
title = 'Inferred Optional type of wrapper function arguments'
updated_at = <Date 2021-01-13.07:48:07.965>
user = 'https://github.com/wyfo'

bugs.python.org fields:

activity = <Date 2021-01-13.07:48:07.965>
actor = 'joperez'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2021-01-13.07:48:07.965>
creator = 'joperez'
dependencies = []
files = []
hgrepos = []
issue_num = 42921
keywords = []
message_count = 1.0
messages = ['385005']
nosy_count = 1.0
nosy_names = ['joperez']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue42921'
versions = []

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First steps

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  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

The issue contains no source files, tests, reproduction steps, or entry points beyond the title and migrated BPO reference. Start by reviewing the linked BPO issue and locating the relevant Python argument type-inference behavior; done means the reported Optional inference behavior is corrected and covered by an appropriate regression test.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
compilers
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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