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147 Commits

Author SHA1 Message Date
sobolevn 84914ad0e5
gh-133999: Fix `except` parsing regression in 3.14 (#134035) 2025-05-17 17:57:02 +03:00
Rafael Fontenelle 6df39765e6
Remove trailing whitespace from python.gram (#133858) 
Co-authored-by: Adam Turner <9087854+aa-turner@users.noreply.github.com>
 2025-05-14 10:52:19 +03:00
Stan Ulbrych dbca27cfca
gh-133379: Fix misuse of the term "arguments" in error messages (GH-133382) 
The right term is "parameters".
 2025-05-10 15:00:43 +03:00
sobolevn ca0a96dfaa
gh-133194: Fix regression with PEP 758 parsing on older `feature_version` (#133289) 
gh-133192: Fix regression with PEP 758 parsing on older `feature_version`
 2025-05-03 10:33:14 +03:00
sobolevn a6ddd078d0
gh-123539: Improve SyntaxError msg for `import as` with not a name (#123629) 2025-05-02 08:34:13 +00:00
sobolevn 5cdd49b3f4
gh-133196: Guard PEP 750 grammar with `CHECK_VERSION` (#133225) 2025-05-01 09:17:07 +02:00
sobolevn b1f893875b
gh-133194: Add `CHECK_VERSION` to new PEP758 grammar (#133195) 2025-04-30 13:39:26 +03:00
Lysandros Nikolaou 60202609a2
gh-132661: Implement PEP 750 (#132662) 
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Wingy <git@wingysam.xyz>
Co-authored-by: Koudai Aono <koxudaxi@gmail.com>
Co-authored-by: Dave Peck <davepeck@gmail.com>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Paul Everitt <pauleveritt@me.com>
Co-authored-by: sobolevn <mail@sobolevn.me>
 2025-04-30 11:46:41 +02:00
Rafael Fontenelle fd0f5d0a5e
Remove trailing whitespace from python.gram (#133175) 2025-04-30 10:35:15 +02:00
Steele Farnsworth 99b71efe8e
gh-129858: Special syntax error for `elif` block after `else` (#129902) 2025-04-25 01:25:48 +00:00
Pablo Galindo Salgado bf3a0a1c0f
gh-132449: Improve syntax error messages for keywords with typos (#132450) 
Signed-off-by: Pablo Galindo <pablogsal@gmail.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
 2025-04-22 11:01:55 +02:00
Pablo Galindo Salgado c2ac662f28
gh-131831: Implement PEP 758 – Allow except and except* expressions without parentheses (#131833) 2025-04-01 19:04:56 +00:00
Sergey Miryanov bcc9a5dddb
gh-129515: Clarify syntax error messages for conditional expressions (#129880) 
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
 2025-02-18 21:43:19 +00:00
Pablo Galindo Salgado 3bd3e09588
gh-125331: Allow the parser to activate future imports on the fly (#125482) 2025-02-14 04:54:56 +00:00
Pablo Galindo Salgado 6fb5138776
gh-88535: Improve syntax error for wrongly closed strings (#26633) 2025-02-13 01:30:20 +00:00
Rigel Di Scala 39c859f6ff
gh-122951: Simplify the grammar of the assignment rule (#124998) 2024-10-06 11:55:56 +02:00
sobolevn 23f159ae71
gh-123562: Improve `SyntaxError` message for `case ... as a.b` (#123563) 2024-09-02 13:11:44 +02:00
sobolevn e451a8937d
gh-123440: Improve error message for `except as` used with not a name (#123442) 2024-08-30 17:21:59 +01:00
Petr Viktorin 31a4fb3c74
gh-119724: Revert "bpo-45759: Better error messages for non-matching 'elif'/'else' statements (#29513)" (#119974) 
This reverts commit 1c8f912ebd.
 2024-06-03 18:10:15 -07:00
Petr Viktorin 48f21b3631
gh-118235: Move RAISE_SYNTAX_ERROR actions to invalid rules and make sure they stay there (GH-119731) 
The Full Grammar specification in the docs omits rule actions, so grammar rules that raise a syntax error looked like valid syntax.
This was solved in ef940de by hiding those rules in the custom syntax highlighter.

This moves all syntax-error alternatives to invalid rules, adds a validator that ensures that actions containing RAISE_SYNTAX_ERROR are in invalid rules, and reverts the syntax highlighter hack.
 2024-05-30 09:27:32 +02:00
Nikita Sobolev b60d4c0d53
gh-118090: Improve error message for empty type param brackets (GH-118091) 2024-05-07 14:01:06 +02:00
Jelle Zijlstra ca269e58c2
gh-116126: Implement PEP 696 (#116129) 
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
 2024-05-03 06:17:32 -07:00
Nikita Sobolev 51aefc5bf9
gh-118323: Document `&&` grammar syntax (#118324) 2024-04-27 11:36:06 +01:00
David Rubin 9b280ab0ab
gh-116988: Remove duplicates of `annotated_rhs` in the Grammar (#117004) 2024-04-24 18:16:06 +01:00
Nikita Sobolev de1f686827
gh-118082: Improve `import` without names syntax error message (#118083) 2024-04-23 13:00:52 +01:00
Grigoriev Semyon c97d3af239
gh-109120: Fix syntax error in handlinh of incorrect star expressions (#117444) 2024-04-02 11:42:58 +01:00
Pablo Galindo Salgado 61599a48f5
bpo-24612: Improve syntax error for 'not' after an operator (GH-28170) 
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
 2024-03-26 10:30:46 +01:00
Alex Waygood 7a3518e43a
gh-115881: Ensure `ast.parse()` parses conditional context managers even with low `feature_version` passed (#115920) 2024-02-26 09:22:09 +00:00
Grigoriev Semyon bb4c167060
gh-111488: Changed error message in case of no 'in' keyword after 'for' in cmp (#113656) 2024-01-06 10:27:49 +00:00
Crowthebird 1c8f912ebd
bpo-45759: Better error messages for non-matching 'elif'/'else' statements (#29513) 2023-11-20 13:27:53 +00:00
Tomas R 453e96e302
gh-111420: Allow type comments in parenthesized `with` statements (#111468) 2023-10-31 21:02:42 +00:00
Pablo Galindo Salgado 24e4ec7766
gh-110938: Fix error messages for indented blocks with functions and classes with generic type parameters (#110973) 2023-10-17 13:45:13 +01:00
Pablo Galindo Salgado 3d180347ae
gh-110696: Fix incorrect syntax error message for incorrect argument unpacking (#110706) 2023-10-12 09:02:02 +00:00
Pablo Galindo Salgado b28ffaa193
gh-109596: Ensure repeated rules in the grammar are not allowed and fix incorrect soft keywords (#109606) 2023-09-22 19:03:23 +01:00
Pablo Galindo Salgado 5bda2f637e
gh-109114: Relax the check for invalid lambdas inside f-strings to avoid false positives (#109121) 2023-09-08 17:00:23 +00:00
Pablo Galindo Salgado da8f87b7ea
gh-107015: Remove async_hacks from the tokenizer (#107018) 2023-07-26 16:34:15 +01:00
Pablo Galindo Salgado 13237a2da8
gh-98931: Add custom error messages to invalid import/from with multiple targets (#105985) 
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
 2023-06-22 15:56:40 +00:00
Pablo Galindo Salgado 41de54378d
gh-105194: Fix format specifier escaped characters in f-strings (#105231) 2023-06-02 13:33:26 +02:00
Jelle Zijlstra ba73473f4c
gh-104799: Move location of type_params AST fields (#104828) 
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
 2023-05-26 05:54:37 -07:00
Jelle Zijlstra a5f244d627
gh-104656: Rename typeparams AST node to type_params (#104657) 2023-05-21 21:25:09 -07:00
Jelle Zijlstra 24d8b88420
gh-103763: Implement PEP 695 (#103764) 
This implements PEP 695, Type Parameter Syntax. It adds support for:

- Generic functions (def func[T](): ...)
- Generic classes (class X[T](): ...)
- Type aliases (type X = ...)
- New scoping when the new syntax is used within a class body
- Compiler and interpreter changes to support the new syntax and scoping rules 

Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Co-authored-by: Eric Traut <eric@traut.com>
Co-authored-by: Larry Hastings <larry@hastings.org>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
 2023-05-15 20:36:23 -07:00
Lysandros Nikolaou 9169a56fad
gh-103656: Transfer f-string buffers to parser to avoid use-after-free (GH-103896) 
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
 2023-04-27 01:33:31 +00:00
Pablo Galindo Salgado 1ef61cf71a
gh-102856: Initial implementation of PEP 701 (#102855) 
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
Co-authored-by: Batuhan Taskaya <isidentical@gmail.com>
Co-authored-by: Marta Gómez Macías <mgmacias@google.com>
Co-authored-by: sunmy2019 <59365878+sunmy2019@users.noreply.github.com>
 2023-04-19 11:18:16 -05:00
Lysandros Nikolaou 6d8da238cc
gh-90994: Improve error messages upon call arguments syntax errors (GH-96893) 2022-11-21 00:15:05 +01:00
Lysandros Nikolaou 9c4232ae89
gh-99211: Point to except/except* on syntax errors when mixing them (GH-99215) 
Automerge-Triggered-By: GH:lysnikolaou
 2022-11-20 09:11:02 -08:00
Irit Katriel 61b6c40b64
gh-99153: set location on SyntaxError for try with both except and except* (GH-99160) 2022-11-06 15:36:19 +00:00
Pablo Galindo Salgado 395d4285bf
gh-98931: Improve error message when the user types 'import x from y' instead of 'from y import x' (#98932) 2022-11-01 13:01:20 +00:00
Lysandros Nikolaou 7e36abbb78
gh-91210: Improve error message when non-default param follows default (GH-95933) 
- Improve error message when parameter without a default follows one with a default
- Show same error message when positional-only params precede the default/non-default sequence
 2022-09-17 10:09:28 -07:00
Nikita Sobolev 2c7d2e8d46
gh-96587: Raise `SyntaxError` for PEP654 on older `feature_version` (#96588) 2022-09-05 17:54:09 +01:00
Shantanu a965db37f2
gh-94996: Disallow lambda pos only params with feature_version < (3, 8) (GH-95934) 2022-08-12 20:41:02 +02:00