delta/cpython-git.git, branch v3.12.0a5

Python 3.12.0a5

2023-02-07T12:21:15+00:00

[gh-101072] Fix Blurb for GH-101127

2023-02-07T09:50:39+00:00

gh-101072: support default and kw default in PyEval_EvalCodeEx for 3.11+ (#101127)

2023-02-07T09:34:21+00:00

Co-authored-by: Łukasz Langa

gh-85747: Active voice & suggested edits, 'running/stopping loop' & 'callbacks' subsections of asyncio-eventloop.rst (#100270)

2023-02-07T05:25:42+00:00

Co-authored-by: C.A.M. Gerlach 
Co-authored-by: Terry Jan Reedy

gh-98831: Move DSL documentation here from ideas repo (#101629)

2023-02-07T05:03:58+00:00

gh-99108: Replace SHA2-224 & 256 with verified code from HACL* (#99109)

2023-02-07T02:11:01+00:00

replacing hashlib primitives (for the non-OpenSSL case) with verified implementations from HACL*. This is the first PR in the series, and focuses specifically on SHA2-256 and SHA2-224.

This PR imports Hacl_Streaming_SHA2 into the Python tree. This is the HACL* implementation of SHA2, which combines a core implementation of SHA2 along with a layer of buffer management that allows updating the digest with any number of bytes. This supersedes the previous implementation in the tree.

@franziskuskiefer was kind enough to benchmark the changes: in addition to being verified (thus providing significant safety and security improvements), this implementation also provides a sizeable performance boost!

```
---------------------------------------------------------------
Benchmark                     Time             CPU   Iterations
---------------------------------------------------------------
Sha2_256_Streaming            3163 ns      3160 ns       219353     // this PR
LibTomCrypt_Sha2_256          5057 ns      5056 ns       136234     // library used by Python currently
``` 

The changes in this PR are as follows:
- import the subset of HACL* that covers SHA2-256/224 into `Modules/_hacl`
- rewire sha256module.c to use the HACL* implementation

Co-authored-by: Gregory P. Smith [Google LLC] 
Co-authored-by: Erlend E. Aasland

gh-59956: Add a Test to Verify GILState Matches the "Current" Thread State (gh-101625)

2023-02-06T22:53:31+00:00

This test should have been in gh-101431.

https://github.com/python/cpython/issues/59956

gh-98831: rewrite COPY and SWAP in the instruction definition DSL (#101620)

2023-02-06T22:45:18+00:00

GH-101616: Mention the Docs Discourse forum in the "reporting docs issues" (GH-101617)

2023-02-06T21:59:45+00:00

Fixes https://github.com/python/cpython/issues/101616

gh-59956: Partial Fix for GILState API Compatibility with Subinterpreters (gh-101431)

2023-02-06T21:39:25+00:00

The GILState API (PEP 311) implementation from 2003 made the assumption that only one thread state would ever be used for any given OS thread, explicitly disregarding the case of subinterpreters.  However, PyThreadState_Swap() still facilitated switching between subinterpreters, meaning the "current" thread state (holding the GIL), and the GILState thread state could end up out of sync, causing problems (including crashes).

This change addresses the issue by keeping the two in sync in PyThreadState_Swap().  I verified the fix against gh-99040.

Note that the other GILState-subinterpreter incompatibility (with autoInterpreterState) is not resolved here.

https://github.com/python/cpython/issues/59956