python / python/cpython

inspect.signature(bytes.hex) raises ValueError "builtin has invalid signature"

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3.10 stdlib type-feature
Dominant language
Python
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Description

BPO 43067
Nosy @verhovsky

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 2021-01-29.21:00:52.553>
labels = ['type-feature', 'library', '3.10']
title = 'inspect.signature(bytes.hex) raises ValueError "builtin has invalid signature"'
updated_at = <Date 2021-01-29.21:00:52.553>
user = 'https://github.com/verhovsky'

bugs.python.org fields:

activity = <Date 2021-01-29.21:00:52.553>
actor = 'boris'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-01-29.21:00:52.553>
creator = 'boris'
dependencies = []
files = []
hgrepos = []
issue_num = 43067
keywords = []
message_count = 1.0
messages = ['385940']
nosy_count = 1.0
nosy_names = ['boris']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue43067'
versions = ['Python 3.10']

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

Start by reproducing the reported inspect.signature(bytes.hex) failure and read the inspect.signature implementation and its handling of built-in callables. No source file or test is named in the issue, so locate the relevant library code and existing inspect tests. Done means bytes.hex produces a valid signature instead of raising ValueError.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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