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Pablo Galindo SalgadoandLysandros Nikolaou b77cb891e9 gh-153568: Skip the expression precedence chain for single-token atoms (#153575 )

A bare name or number followed by a token that cannot extend an expression now produces its AST node directly. This avoids the expression precedence chain for common arguments, assignments, and subscripts.

Rules declare the hook with a fastpath flag. The Rule constructor exposes memo and fastpath attributes, and the C generator emits the hook call.

Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>

2026-10-23 14:23:10 -07:00

images

gh-119786: Move garbage collection doc from devguide to InternalDocs (#125282 )

2024-10-11 21:18:37 +01:00

asyncio.md

fix some typos (#138977 )

2025-09-16 18:33:39 +05:30

changing_grammar.md

gh-153195: Allow splitting the PEG grammar into several files (#159917 )

2026-10-23 12:58:39 -07:00

code_objects.md

Docs: split builtins to their own page from library (#156682 )

2026-09-13 11:55:44 -04:00

compiler.md

gh-124697: Represent inlined comprehensions as subscopes in the symbol table (#156819 )

2026-09-23 20:31:57 +01:00

exception_handling.md

Improve format of InternalDocs/exception_handling.md (#134969 )

2025-05-31 14:56:33 +03:00

frames.md

gh-151613: Fix remote debugging frame cache ABA (#151614 )

2026-06-27 16:56:31 +00:00

garbage_collector.md

GH-148726: Forward-port generational GC. (GH-148746)

2026-04-30 12:19:13 -07:00

generators.md

gh-138081: fix some dead links in InternalDocs (#138082 )

2025-09-11 10:54:16 +02:00

inlined_comprehensions.md

gh-124697: Represent inlined comprehensions as subscopes in the symbol table (#156819 )

2026-09-23 20:31:57 +01:00

interpreter.md

gh-153511: Removes Tools/msi, Tools/nuget, and legacy py.exe launcher sources (GH-153512)

2026-07-20 22:25:12 +01:00

jit.md

gh-154753: Update references to moved files in the docs (#155553 )

2026-08-14 09:22:51 +01:00

parser.md

gh-153568: Skip the expression precedence chain for single-token atoms (#153575 )

2026-10-23 14:23:10 -07:00

profiling_binary_format.md

gh-154060: Fix the Profile Stats offsets in the profiling binary format docs and a missing flag (#157871 )

2026-10-05 14:13:14 +00:00

qsbr.md

Update qsbr.md doc to be more accurate (#148537 )

2026-05-28 16:00:22 +05:30

README.md

gh-124697: Represent inlined comprehensions as subscopes in the symbol table (#156819 )

2026-09-23 20:31:57 +01:00

stack_protection.md

GH-139653: Only raise an exception (or fatal error) when the stack pointer is about to overflow the stack. (GH-141711)

2025-11-19 10:16:24 +00:00

stackrefs.md

gh-142472: Clean-up _PyStackRef functions (gh-142479)

2025-12-15 12:03:49 -05:00

string_interning.md

InternalDocs: Correct struct path for latin1 singletons in string_interning.md (GH-148358)

2026-04-13 11:45:41 +02:00

structure.md

Docs: split builtins to their own page from library (#156682 )

2026-09-13 11:55:44 -04:00

README.md

CPython Internals Documentation

The documentation in this folder is intended for CPython maintainers. It describes implementation details of CPython, which should not be assumed to be part of the Python language specification. These details can change between any two CPython versions and should not be assumed to hold for other implementations of the Python language.

The core dev team attempts to keep this documentation up to date. If it is not, please report that through the issue tracker.

README.md

CPython Internals Documentation

General Resources

Compiling Python Source Code

Runtime Objects

Program Execution

Built-in Types

Modules