delta/cpython-git.git/Programs, branch main github.com: python/cpython.git gh-84436: Implement Immortal Objects (gh-19474) 2023-04-22T19:39:37+00:00 Eddie Elizondo eduardo.elizondorueda@gmail.com 2023-04-22T19:39:37+00:00 ea2c0016502472aa8baa3149050ada776d17a009 This is the implementation of PEP683 Motivation: The PR introduces the ability to immortalize instances in CPython which bypasses reference counting. Tagging objects as immortal allows up to skip certain operations when we know that the object will be around for the entire execution of the runtime. Note that this by itself will bring a performance regression to the runtime due to the extra reference count checks. However, this brings the ability of having truly immutable objects that are useful in other contexts such as immutable data sharing between sub-interpreters. 
This is the implementation of PEP683

Motivation:

The PR introduces the ability to immortalize instances in CPython which bypasses reference counting. Tagging objects as immortal allows up to skip certain operations when we know that the object will be around for the entire execution of the runtime.

Note that this by itself will bring a performance regression to the runtime due to the extra reference count checks. However, this brings the ability of having truly immutable objects that are useful in other contexts such as immutable data sharing between sub-interpreters.
 gh-102856: Initial implementation of PEP 701 (#102855) 2023-04-19T16:18:16+00:00 Pablo Galindo Salgado Pablogsal@gmail.com 2023-04-19T16:18:16+00:00 1ef61cf71a218c71860ff6aecf0fd51edb8b65dc 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> 
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>
 gh-103326: Remove `Python/importlib.h` (GH-103331) 2023-04-12T18:27:14+00:00 Nikita Sobolev mail@sobolevn.me 2023-04-12T18:27:14+00:00 7f3c10650385907b5a2234edb2b1334cafd47a0a Co-authored-by: Brett Cannon <brett@python.org> Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com> 
Co-authored-by: Brett Cannon <brett@python.org>
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
 GH-88691: Shrink the CALL caches (GH-103230) 2023-04-05T21:15:49+00:00 Brandt Bucher brandtbucher@microsoft.com 2023-04-05T21:15:49+00:00 b4978ff872be5102117b4e25d93dbbb4e04c8292 






GH-89987: Shrink the BINARY_SUBSCR caches (GH-103022)
2023-03-29T22:53:30+00:00

Brandt Bucher
brandtbucher@microsoft.com

2023-03-29T22:53:30+00:00

121057aa3600c4d4d392539aeb79e1b09fd5659d












gh-102650: Remove duplicate include directives from multiple source files (#102651)
2023-03-13T19:25:17+00:00

chgnrdv
52372310+chgnrdv@users.noreply.github.com

2023-03-13T19:25:17+00:00

85ba8a3e03707092800cbf2a29d95e0b495e3cb7

Remove duplicate include directives from multiple source files




Remove duplicate include directives from multiple source files






gh-101632: Add the new RETURN_CONST opcode (#101633)
2023-02-07T22:32:21+00:00

penguin_wwy
940375606@qq.com

2023-02-07T22:32:21+00:00

753fc8a5d64369cd228c3e43fef1811ac3cfde83












GH-99554: Pack location tables more effectively (GH-99556)
2022-12-22T00:41:18+00:00

Brandt Bucher
brandtbucher@microsoft.com

2022-12-22T00:41:18+00:00

3c033a2e6fbde56f904aeca138141be6564341cf












gh-99582: freeze `zipimport` into `_bootstrap_python` (#99583)
2022-12-10T09:35:56+00:00

Kai Zhang
kylerzhang11@gmail.com

2022-12-10T09:35:56+00:00

228c92eb5c126130316a32b44a0ce8f28cc5d544

Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>




Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>






GH-98522: Add version number to code objects. (GH-98525)
2022-12-09T12:18:45+00:00

Mark Shannon
mark@hotpy.org

2022-12-09T12:18:45+00:00

fb713b21833a17cba8022af0fa4c486512157d4b

* Add version number to code object for better versioning of functions.

* Improves specialization for closures and list comprehensions.





* Add version number to code object for better versioning of functions.

* Improves specialization for closures and list comprehensions.