…H-94701)

Co-authored-by: Serhiy Storchaka <3659035+serhiy-storchaka@users.noreply.github.com>

This is similar to how strings are interned for deepfreeze.

The `_testcapimodule.c` file is getting too large to work with effectively.
This PR lays out a general structure of how tests can be split up, with more splitting to come later if the structure is OK.

Vectorcall tests aren't the biggest issue -- it's just an area I want to work on next, so I'm starting here.
An issue specific to vectorcall tests is that it wasn't clear that e.g. `MethodDescriptor2` is related to testing vectorcall: the `/* Test PEP 590 */` section had an ambiguous end. Separate file should make things like this much clearer.
OTOH, for some pieces it might not be clear where they should be -- I left `meth_fastcall` with tests of the other calling conventions. IMO, even with the ambiguity it's still worth it to split the huge file up.

I'm not sure about the buildsystem changes, hopefully CI will tell me what's wrong.

@vstinner, @markshannon: Do you think this is a good idea?

Automerge-Triggered-By: GH:encukou

Remove the ssl.wrap_socket() function, deprecated in Python 3.7:
instead, create a ssl.SSLContext object and call its
sl.SSLContext.wrap_socket() method. Any package that still uses
ssl.wrap_socket() is broken and insecure. The function neither sends
a SNI TLS extension nor validates server hostname. Code is subject to
CWE-295 : Improper Certificate Validation.

* Re-enable crasher
* Fix error handling for line-tracing events
* blurb add

…ed.h (GH-94051)

Issue: gh-93654

Some pkg-config pc files define CFLAGS with -D_XOPEN_SOURCE=600. We always want _XOPEN_SOURCE=700.

This removes the performance regression in 3.11, **at the expense of not fixing
the "bug" that allows accessing values from values** (e.g. `Color.RED.BLUE`).

Using the benchmark @markshannon [presented](#93910 (comment)), the results are:

| Version | Enum | Fast enum | Normal class |
| --- | --- | --- | --- |
| 3.10 | 2.04 | 0.59 | 0.56 |
| 3.11 | 2.78 | 0.31 | 0.15 |
| This PR | 1.30 | 0.32 | 0.16 |

I share this mostly as information about the source of the regression, as this may be useful. It may be that the lower-risk approach for the beta is just to revert to a previously-known working state.

…n Argument Clinic (#94431)

Co-authored-by: CAM Gerlach <CAM.Gerlach@Gerlach.CAM>

…tion for blocks that have a line number (GH-94592)

Inlining of code that corresponds to source code lines, can make it hard to distinguish later between code which is only reachable from except handlers, and that which is reachable in normal control flow. This caused problems with the debugger's jump feature.

This PR turns off the inlining optimisation for code which has line numbers. We still inline things like the implicit "return None".

…ymbols (#94631)

Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: CAM Gerlach <CAM.Gerlach@Gerlach.CAM>

…stCase (#94593)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@protonmail.com>

…POP_EXCEPT cases are no longer reachable (GH-94582)

GH-94511)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>

)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>

…x errors from stdin (#94386)

* gh-94360: Fix a tokenizer crash when reading encoded files with syntax errors from stdin

Signed-off-by: Pablo Galindo <pablogsal@gmail.com>

* nitty nit

Co-authored-by: Łukasz Langa <lukasz@langa.pl>

Co-authored-by: Éric <merwok@netwok.org>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>

…e creating interpreter (GH-92899)

)

Co-authored-by: Stanley <46876382+slateny@users.noreply.github.com>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>

…cified by PEP 626 (GH-94552)

Co-authored-by: Mark Shannon <mark@hotpy.org>