python / python/cpython

gen.throw() with multiple yield froms skips intermediate exceptions

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3.10 interpreter-core
Dominant language
Python
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Description

BPO 40694
Nosy @cjerdonek

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 2020-05-20.04:47:05.315>
labels = ['interpreter-core', '3.10']
title = 'gen.throw() with multiple yield froms skips intermediate exceptions'
updated_at = <Date 2020-05-20.04:47:05.315>
user = 'https://github.com/cjerdonek'

bugs.python.org fields:

activity = <Date 2020-05-20.04:47:05.315>
actor = 'chris.jerdonek'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Interpreter Core']
creation = <Date 2020-05-20.04:47:05.315>
creator = 'chris.jerdonek'
dependencies = []
files = []
hgrepos = []
issue_num = 40694
keywords = []
message_count = 1.0
messages = ['369416']
nosy_count = 1.0
nosy_names = ['chris.jerdonek']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue40694'
versions = ['Python 3.10']

Contributor guide

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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

No file or test is named. Start in the interpreter-core generator handling for gen.throw() with multiple yield from expressions, reproduce the skipped-intermediate-exception case, and identify the relevant regression-test location. Done means intermediate exceptions are no longer skipped.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
compilers
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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