python / python/cpython

co_filename does not match __file__ for frozen stdlib modules

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3.11 interpreter-core type-bug
Dominant language
Python
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Forks
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PR merge metrics
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Description

BPO 45652
Nosy @ericsnowcurrently, @FFY00

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 2021-10-28.17:45:27.885>
labels = ['interpreter-core', 'type-bug', '3.11']
title = 'co_filename does not match __file__ for frozen stdlib modules'
updated_at = <Date 2021-10-28.17:45:27.885>
user = 'https://github.com/ericsnowcurrently'

bugs.python.org fields:

activity = <Date 2021-10-28.17:45:27.885>
actor = 'eric.snow'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2021-10-28.17:45:27.885>
creator = 'eric.snow'
dependencies = []
files = []
hgrepos = []
issue_num = 45652
keywords = []
message_count = 1.0
messages = ['405209']
nosy_count = 2.0
nosy_names = ['eric.snow', 'FFY00']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue45652'
versions = ['Python 3.11']

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 with the behavior described in BPO 45652 and reproduce the mismatch between co_filename and file for frozen standard-library modules. Trace the interpreter-core path that sets these values, then add a regression test showing they match; no source file or existing test is identified in the issue.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
backend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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