Name already in use

The tests in question were added in 0eec627 by Serhiy. Apparently,
sqlite3 changed exceptions raised in those cases in the mean time but
the tests never ran because they require a high `-M` setting in the
test runner.

… suggestions (#97022)

Relevant tests moved from test_exceptions to test_traceback to be able to
compare both implementations.

Co-authored-by: Carl Friedrich Bolz-Tereick <cfbolz@gmx.de>

…l() (#95253)

Co-authored-by: Thomas Grainger <tagrain@gmail.com>

…H-95928)

Co-authored-by: Éric <merwok@netwok.org>

…io.Task (GH-32197)" (GH-95442)

This reverts commit d4bb38f.

This makes macOS gdbm provided by Homebrew not segfault through correct
selection of the linked library (-lgdbm_compat) *AND* the correct ndbm-style
header (gdbm-ndbm.h instead of the invalid ndbm.h).

Fixes #91424.

…GH-29411)

…-29416)

…9408)

…ile (GH-29094)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>

…H-28623)

Removed extra comma in comment that indicates state of a `Barrier` as it was confusing and breaking the flow while reading.

Co-authored-by: Priyank <5903604+cpriyank@users.noreply.github.com>

…H-27309)

…mentation (GH-28123)

…ed before release (GH-28075)

This was missed while upgrading CI.

…27793)

Additional improvements:

- messages which were compiled regular expressions aren't unpacked back into
  strings for unmatched warnings;

- removed unnecessary "if tokens:" check (there's one before the for loop);

- took `endswith` calculation out of the for loop.

… regrtest (GH-27634)

Co-authored-by: Cornelius Diekmann <c.diekmann@googlemail.com>

…H-27638)

…ake html` (GH-27635)

It turned out to be disruptive for downstream distributors.

…iling test methods (GH-27287)

* Move to a static argparse.Namespace subclass
* Roughly annotate runtest.py
* Refactor libregrtest to use lossless test result objects
* Only re-run test methods that match names of previously failing test methods
* Adopt tests to cover test method name matching

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>

…nviron on Windows (GH-27161)

GH-23638 introduced a new test for Accept: headers in CGI HTTP servers. This test serializes all of os.environ on the server side. For non-UTF8 locales this can fail for some Unicode characters found in environment variables. This change fixes the HTTP_ACCEPT test.

…rs (#27115)

Patch by Erik Welch.

bpo-19072 (#8405) allows `classmethod` to wrap other descriptors, but this does
not work when the wrapped descriptor mimics classmethod.  The current PR fixes
this.

In Python 3.8 and before, one could create a callable descriptor such that this
works as expected (see Lib/test/test_decorators.py for examples):
```python
class A:
    @myclassmethod
    def f1(cls):
        return cls

    @classmethod
    @myclassmethod
    def f2(cls):
        return cls
```
In Python 3.8 and before, `A.f2()` return `A`. Currently in Python 3.9, it
returns `type(A)`.  This PR make `A.f2()` return `A` again.

As of #8405, classmethod calls `obj.__get__(type)` if `obj` has `__get__`.
This allows one to chain `@classmethod` and `@property` together.  When
using classmethod-like descriptors, it's the second argument to `__get__`--the
owner or the type--that is important, but this argument is currently missing.
Since it is None, the "owner" argument is assumed to be the type of the first
argument, which, in this case, is wrong (we want `A`, not `type(A)`).

This PR updates classmethod to call `obj.__get__(type, type)` if `obj` has
`__get__`.

Co-authored-by: Erik Welch <erik.n.welch@gmail.com>