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4489dc3e16abb09aa2e50a4909ed33f2327ae77d
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270 Commits
Author SHA1 Message Date
Miss Islington (bot)Bartosz SławeckiJelle Zijlstra
 		4489dc3e16 [3.14] gh-156909: Fix AST.__repr__ call getting the _fields attribute (GH-157490) (GH-157596) (GH-159232) 
(cherry picked from commit ad0a18a17d)

Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
 2026-10-13 12:12:05 +02:00
Miss Islington (bot)andStan Ulbrych 1546d44f6e [3.14] gh-156689: Fix out-of-bounds read in PyAst_CheckMode() for mode='func_type' (GH-156697) (#156704) 
(cherry picked from commit d7f9c6400f)

Co-authored-by: Stan Ulbrych <stan@python.org>
 2026-08-31 14:19:57 +01:00
Miss Islington (bot)Jelle ZijlstraVictor Stinner
 		7ae9a479cf [3.14] gh-144169: Fix three crashes in AST objects with non-str kwargs (GH-144178) (#144227) 
gh-144169: Fix three crashes in AST objects with non-str kwargs (GH-144178)
(cherry picked from commit 639c1ad4f1)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
 2026-01-26 12:14:39 +00:00
Miss Islington (bot)andSamuel 6583951e7d [3.14] gh-131421: Fix ASDL kw_defaults being expr* instead of expr?* (GH-133773) (GH-143269) 
Also fix docs ASDL highlighting.
(cherry picked from commit f37f57dfe6)

Co-authored-by: Samuel <samuel@knutsen.co>
 2025-12-29 12:09:11 +00:00
Miss Islington (bot)andStan Ulbrych 8285bc7ea2 [3.14] gh-140471: Fix buffer overflow in AST node initialization with malformed _fields (GH-140506) (#140509) 
gh-140471: Fix buffer overflow in AST node initialization with malformed `_fields` (GH-140506)
(cherry picked from commit 95953b692d)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
 2025-10-23 10:20:21 -07:00
Victor StinnerPeter BiermaBénédikt Tran
 		3d69d18322 [3.14] gh-133968: Add PyUnicodeWriter_WriteASCII() function (#133973) (#134974) 
gh-133968: Add PyUnicodeWriter_WriteASCII() function (#133973)

Replace most PyUnicodeWriter_WriteUTF8() calls with
PyUnicodeWriter_WriteASCII().

(cherry picked from commit f49a07b531)

Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
 2025-06-09 14:37:26 +02:00
Miss Islington (bot)andJelle Zijlstra 856e5903ba [3.14] gh-133783: Fix __replace__ on AST nodes for optional attributes (GH-133797) (#133842) 
gh-133783: Fix __replace__ on AST nodes for optional attributes (GH-133797)
(cherry picked from commit 7dddb4e667)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
 2025-05-10 16:44:07 +00:00
SamuelBénédikt TranJelle Zijlstra
 		30840706b0 gh-131421: fix ASDL grammar for Dict to have an expr?* keys field (#131419) 
In the `ast` documentation for Python:

* https://docs.python.org/3/library/ast.html#ast.Dict
it is made clear that:

> When doing dictionary unpacking using dictionary literals the expression to be expanded goes in the values list, with a `None` at the corresponding position in `keys`.

Hence, `keys` is really a `expr?*` and *not* a `expr*`.

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
 2025-05-04 16:03:38 -07:00
Lysandros NikolaouBénédikt TranAdam TurnerHugo van KemenadeWingyKoudai AonoDave PeckTerry Jan ReedyPaul Everittsobolevn
 		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
Victor Stinner 978e37bb5f gh-131238: Add explicit includes to pycore headers (#131257) 2025-03-17 12:32:43 +01:00
Mark Shannon 014223649c GH-130396: Use computed stack limits on linux (GH-130398) 
* Implement C recursion protection with limit pointers for Linux, MacOS and Windows

* Remove calls to PyOS_CheckStack

* Add stack protection to parser

* Make tests more robust to low stacks

* Improve error messages for stack overflow
 2025-02-25 09:24:48 +00:00
Petr Viktorin ef29104f7d GH-91079: Revert "GH-91079: Implement C stack limits using addresses, not counters. (GH-130007)" for now (GH130413) 
Revert "GH-91079: Implement C stack limits using addresses, not counters. (GH-130007)" for now

Unfortunatlely, the change broke some buildbots.

This reverts commit 2498c22fa0.
 2025-02-24 11:16:08 +01:00
Mark Shannon 2498c22fa0 GH-91079: Implement C stack limits using addresses, not counters. (GH-130007) 
* Implement C recursion protection with limit pointers

* Remove calls to PyOS_CheckStack

* Add stack protection to parser

* Make tests more robust to low stacks

* Improve error messages for stack overflow
 2025-02-19 11:44:57 +00:00
Irit Katriel c9b1bf302c gh-130139: always check ast node type in ast.parse() with ast input (#130140) 2025-02-16 13:32:39 +00:00
Victor Stinner 0093a31273 gh-119182: Use public PyUnicodeWriter in Python-ast.c (#129209) 
Replace the private _PyUnicodeWriter API with the public
PyUnicodeWriter API.

Use PyUnicodeWriter_WriteRepr() in ast_repr_list().
 2025-01-23 00:57:37 +00:00
sobolevn b2eaa75b17 gh-126105: Fix crash in ast module, when ._fields is deleted (#126115) 
Previously, if the `ast.AST._fields` attribute was deleted, attempts to create a new `as`t node would crash due to the assumption that `_fields` always had a non-NULL value. Now it has been fixed by adding an extra check to ensure that `_fields` does not have a NULL value (this can happen when you manually remove `_fields` attribute).
 2024-10-29 17:42:48 +02:00
Sam Gross 427dcf24de gh-125268: Use static string for "1e309" in AST (#125272) 
When formatting the AST as a string, infinite values are replaced by
1e309, which evaluates to infinity. The initialization of this string
replacement was not thread-safe in the free threading build.
 2024-10-10 16:21:29 -04:00
Tomas R. a1be83dae3 gh-125010: Fix use-after-free in AST repr() (#125015) 2024-10-06 12:46:03 -07:00
Victor Stinner 6c7d5c6415 gh-111178: Fix function signatures in Python-ast.c (#124942) 2024-10-04 11:59:08 +02:00
Tomas RAN LongJelle ZijlstraAlex WaygoodBénédikt Tran
 		21d2a9ab2f gh-116022: Improve repr() of AST nodes (#117046) 
Co-authored-by: AN Long <aisk@users.noreply.github.com>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
 2024-09-18 10:28:22 -07:00
Jelle Zijlstra 58e8cf2bb6 gh-121332: Make AST node constructor check _attributes instead of hardcoding attributes (#121334) 2024-07-11 14:34:53 +00:00
Bénédikt Tran 9728ead361 gh-121141: add support for copy.replace to AST nodes (#121162) 2024-07-03 20:10:54 -07:00
Jelle Zijlstra 42b2c9d78d gh-120108: Fix deepcopying of AST trees with .parent attributes (#120114) 2024-06-25 08:12:11 -07:00
Jelle ZijlstraandAlex Waygood 68fbc00dc8 gh-118851: Default ctx arguments to AST constructors to Load() (#118854) 
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
 2024-05-09 15:30:14 -07:00
Jelle Zijlstra e0422198fb gh-117486: Improve behavior for user-defined AST subclasses (#118212) 
Now, such classes will no longer require changes in Python 3.13 in the normal case.
The test suite for robotframework passes with no DeprecationWarnings under this PR.

I also added a new DeprecationWarning for the case where `_field_types` exists
but is incomplete, since that seems likely to indicate a user mistake.
 2024-05-06 15:57:27 -07:00
Brett Simmers c2627d6eea gh-116322: Add Py_mod_gil module slot (#116882) 
This PR adds the ability to enable the GIL if it was disabled at
interpreter startup, and modifies the multi-phase module initialization
path to enable the GIL when loading a module, unless that module's spec
includes a slot indicating it can run safely without the GIL.

PEP 703 called the constant for the slot `Py_mod_gil_not_used`; I went
with `Py_MOD_GIL_NOT_USED` for consistency with gh-104148.

A warning will be issued up to once per interpreter for the first
GIL-using module that is loaded. If `-v` is given, a shorter message
will be printed to stderr every time a GIL-using module is loaded
(including the first one that issues a warning).
 2024-05-03 11:30:55 -04:00
Jelle ZijlstraAlex WaygoodBénédikt TranShantanu
 		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
Jelle Zijlstra 4c71d51a4b gh-117266: Fix crashes on user-created AST subclasses (GH-117276) 
Fix crashes on user-created AST subclasses
 2024-03-28 11:30:31 +01:00
Serhiy Storchaka 72d3cc94cd gh-116437: Use new C API PyDict_Pop() to simplify the code (GH-116438) 2024-03-07 11:21:08 +02:00
Jelle Zijlstra ed4dfd8825 gh-105858: Improve AST node constructors (#105880) 
Demonstration:

>>> ast.FunctionDef.__annotations__
{'name': <class 'str'>, 'args': <class 'ast.arguments'>, 'body': list[ast.stmt], 'decorator_list': list[ast.expr], 'returns': ast.expr | None, 'type_comment': str | None, 'type_params': list[ast.type_param]}
>>> ast.FunctionDef()
<stdin>:1: DeprecationWarning: FunctionDef.__init__ missing 1 required positional argument: 'name'. This will become an error in Python 3.15.
<stdin>:1: DeprecationWarning: FunctionDef.__init__ missing 1 required positional argument: 'args'. This will become an error in Python 3.15.
<ast.FunctionDef object at 0x101959460>
>>> node = ast.FunctionDef(name="foo", args=ast.arguments())
>>> node.decorator_list
[]
>>> ast.FunctionDef(whatever="you want", name="x", args=ast.arguments())
<stdin>:1: DeprecationWarning: FunctionDef.__init__ got an unexpected keyword argument 'whatever'. Support for arbitrary keyword arguments is deprecated and will be removed in Python 3.15.
<ast.FunctionDef object at 0x1019581f0>
 2024-02-27 18:13:03 -08:00
Mark Shannon 17b73ab99e GH-113655: Lower the C recursion limit on various platforms (GH-113944) 2024-01-16 09:32:01 +00:00
Yilei YangandGregory P. Smith [Google LLC] 48c49739f5 gh-106905: Use separate structs to track recursion depth in each PyAST_mod2obj call. (GH-113035) 
Co-authored-by: Gregory P. Smith [Google LLC] <greg@krypto.org>
 2023-12-25 19:36:59 +02:00
Sam Gross 446f18a911 gh-111956: Add thread-safe one-time initialization. (gh-111960) 2023-11-16 12:19:54 -07:00
Markus MohrhardShantanuSerhiy Storchaka
 		1447af7970 gh-106905: avoid incorrect SystemError about recursion depth mismatch (#106906) 
* gh-106905: avoid incorrect SystemError about recursion depth mismatch

* Update Misc/NEWS.d/next/Core and Builtins/2023-07-20-11-41-16.gh-issue-106905.AyZpuB.rst

---------

Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
 2023-11-13 13:05:17 +00:00
Victor Stinner b0edf3b98e GH-91079: Rename C_RECURSION_LIMIT to Py_C_RECURSION_LIMIT (#108507) 
Symbols of the C API should be prefixed by "Py_" to avoid conflict
with existing names in 3rd party C extensions on "#include <Python.h>".

test.pythoninfo now logs Py_C_RECURSION_LIMIT constant and other
_testcapi and _testinternalcapi constants.
 2023-09-08 09:48:28 +00:00
Victor Stinner e59a95238b gh-108444: Remove _PyLong_AsInt() function (#108461) 
* Update Parser/asdl_c.py to regenerate Python/Python-ast.c.
* Remove _PyLong_AsInt() alias to PyLong_AsInt().
 2023-08-25 11:13:59 +02:00
Irit Katriel 10a91d7e98 gh-108113: Make it possible to create an optimized AST (#108154) 2023-08-21 16:31:30 +00:00
Mark Shannon fa45958450 GH-107263: Increase C stack limit for most functions, except _PyEval_EvalFrameDefault() (GH-107535) 
* Set C recursion limit to 1500, set cost of eval loop to 2 frames, and compiler mutliply to 2.
 2023-08-04 10:10:29 +01:00
Victor Stinner 1a3faba9f1 gh-106869: Use new PyMemberDef constant names (#106871) 
* Remove '#include "structmember.h"'.
* If needed, add <stddef.h> to get offsetof() function.
* Update Parser/asdl_c.py to regenerate Python/Python-ast.c.
* Replace:

  * T_SHORT => Py_T_SHORT
  * T_INT => Py_T_INT
  * T_LONG => Py_T_LONG
  * T_FLOAT => Py_T_FLOAT
  * T_DOUBLE => Py_T_DOUBLE
  * T_STRING => Py_T_STRING
  * T_OBJECT => _Py_T_OBJECT
  * T_CHAR => Py_T_CHAR
  * T_BYTE => Py_T_BYTE
  * T_UBYTE => Py_T_UBYTE
  * T_USHORT => Py_T_USHORT
  * T_UINT => Py_T_UINT
  * T_ULONG => Py_T_ULONG
  * T_STRING_INPLACE => Py_T_STRING_INPLACE
  * T_BOOL => Py_T_BOOL
  * T_OBJECT_EX => Py_T_OBJECT_EX
  * T_LONGLONG => Py_T_LONGLONG
  * T_ULONGLONG => Py_T_ULONGLONG
  * T_PYSSIZET => Py_T_PYSSIZET
  * T_NONE => _Py_T_NONE
  * READONLY => Py_READONLY
  * PY_AUDIT_READ => Py_AUDIT_READ
  * READ_RESTRICTED => Py_AUDIT_READ
  * PY_WRITE_RESTRICTED => _Py_WRITE_RESTRICTED
  * RESTRICTED => (READ_RESTRICTED | _Py_WRITE_RESTRICTED)
 2023-07-25 15:28:30 +02:00
Serhiy Storchaka be1b968dc1 gh-106521: Remove _PyObject_LookupAttr() function (GH-106642) 2023-07-12 08:57:10 +03:00
Nikita Sobolev 46c1097868 gh-106145: Make end_{lineno,col_offset} required on type_param nodes (#106224) 2023-06-30 23:45:08 +00:00
Brandt Bucher a4056c8f9c GH-105588: Add missing error checks to some obj2ast_* converters (GH-105589) 2023-06-15 15:45:13 -07:00
Jelle ZijlstraandAlex Waygood 77d2579586 gh-104799: Default missing lists in AST to the empty list (#104834) 
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
 2023-06-01 18:39:39 -07:00
Jelle ZijlstraandAlex Waygood 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 ZijlstraMarc MuellerEric TrautLarry HastingsAlex Waygood
 		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
Eric Snow a9c6e0618f gh-99113: Add Py_MOD_PER_INTERPRETER_GIL_SUPPORTED (gh-104205) 
Here we are doing no more than adding the value for Py_mod_multiple_interpreters and using it for stdlib modules.  We will start checking for it in gh-104206 (once PyInterpreterState.ceval.own_gil is added in gh-104204).
 2023-05-05 21:11:27 +00:00
Eric Snow 880437d4ec gh-100227: Move _str_replace_inf to PyInterpreterState (gh-102333) 
https://github.com/python/cpython/issues/100227
 2023-02-28 14:16:39 -07:00
Victor Stinner f13f466474 gh-99300: Use Py_NewRef() in Python/Python-ast.c (#99499) 
Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and
Py_XNewRef() in Python/Python-ast.c.

Update Parser/asdl_c.py to regenerate code.
 2022-11-15 10:29:56 +01:00
Eric Snow a088290f9d gh-81057: Move Global Variables Holding Objects to _PyRuntimeState. (gh-99487) 
This moves nearly all remaining object-holding globals in core code (other than static types).

https://github.com/python/cpython/issues/81057
 2022-11-14 13:50:56 -07:00