[issue46762] assertion failure in f-string parsing Parser/string_parser.c

[Pablo Galindo Salgado]

Change by Pablo Galindo Salgado :


--
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue46762] assertion failure in f-string parsing Parser/string_parser.c

[miss-islington]

miss-islington  added the comment:


New changeset a657bff34945e40be24cd75d02560a93b7623cf5 by Miss Islington (bot) 
in branch '3.9':
bpo-46762: Fix an assert failure in f-strings where > or < is the last 
character if the f-string is missing a trailing right brace. (GH-31365)
https://github.com/python/cpython/commit/a657bff34945e40be24cd75d02560a93b7623cf5


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[issue46762] assertion failure in f-string parsing Parser/string_parser.c

[Pablo Galindo Salgado]

Pablo Galindo Salgado  added the comment:

Thanks for the quick fix, Eric!

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[issue46762] assertion failure in f-string parsing Parser/string_parser.c

[miss-islington]

miss-islington  added the comment:


New changeset 3d407b931156bc3ee5ae131de2f2babad831ccb2 by Miss Islington (bot) 
in branch '3.10':
bpo-46762: Fix an assert failure in f-strings where > or < is the last 
character if the f-string is missing a trailing right brace. (GH-31365)
https://github.com/python/cpython/commit/3d407b931156bc3ee5ae131de2f2babad831ccb2


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[issue46762] assertion failure in f-string parsing Parser/string_parser.c

[miss-islington]

Change by miss-islington :


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pull_requests: +29521
pull_request: https://github.com/python/cpython/pull/31371

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[issue46762] assertion failure in f-string parsing Parser/string_parser.c

[miss-islington]

Change by miss-islington :


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nosy: +miss-islington
nosy_count: 5.0 -> 6.0
pull_requests: +29520
pull_request: https://github.com/python/cpython/pull/31370

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[issue46762] assertion failure in f-string parsing Parser/string_parser.c

[Eric V. Smith]

Eric V. Smith  added the comment:


New changeset ffd9f8ff84ed53c956b16d027f7d2926ea631051 by Eric V. Smith in 
branch 'main':
bpo-46762: Fix an assert failure in f-strings where > or < is the last 
character if the f-string is missing a trailing right brace. (#31365)
https://github.com/python/cpython/commit/ffd9f8ff84ed53c956b16d027f7d2926ea631051


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[issue46762] assertion failure in f-string parsing Parser/string_parser.c

[Eric V. Smith]

Change by Eric V. Smith :


--
keywords: +patch
pull_requests: +29515
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/31365

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[issue46762] assertion failure in f-string parsing Parser/string_parser.c

[Eric V. Smith]

Eric V. Smith  added the comment:

Good catch! I'll have a patch tonight.

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[issue46762] assertion failure in f-string parsing Parser/string_parser.c

[Ammar Askar]

New submission from Ammar Askar :

Similar to https://bugs.python.org/issue46503 found by the ast.literal_eval 
fuzzer

```
>>> f'{<'
python: Parser/string_parser.c:346: fstring_compile_expr: Assertion `*expr_end 
== '}' || *expr_end == '!' || *expr_end == ':' || *expr_end == '='' failed.
[1]14060 abort  ./python
```

--
assignee: eric.smith
components: Parser
messages: 413302
nosy: ammar2, eric.smith, gregory.p.smith, lys.nikolaou, pablogsal
priority: normal
severity: normal
status: open
title: assertion failure in f-string parsing Parser/string_parser.c
type: crash
versions: Python 3.11

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