gh-118814: Fix the TypeVar constructor when name is passed by keyword (GH-122664)
Fix _PyArg_UnpackKeywordsWithVararg for the case when argument for
positional-or-keyword parameter is passed by keyword.
There was only one such case in the stdlib -- the TypeVar constructor.
Sam Gross [Wed, 7 Aug 2024 17:23:53 +0000 (13:23 -0400)]
gh-118926: Spill deferred references to stack in cases generator (#122748)
This automatically spills the results from `_PyStackRef_FromPyObjectNew`
to the in-memory stack so that the deferred references are visible to
the GC before we make any possibly escaping call.
Barney Gale [Wed, 7 Aug 2024 00:34:44 +0000 (01:34 +0100)]
GH-73991: Rework `pathlib.Path.rmtree()` into `delete()` (#122368)
Rename `pathlib.Path.rmtree()` to `delete()`, and add support for deleting
non-directories. This simplifies the interface for users, and nicely
complements the upcoming `move()` and `copy()` methods (which will also
accept any type of file.)
Sam Gross [Tue, 6 Aug 2024 18:36:57 +0000 (14:36 -0400)]
gh-122417: Implement per-thread heap type refcounts (#122418)
The free-threaded build partially stores heap type reference counts in
distributed manner in per-thread arrays. This avoids reference count
contention when creating or destroying instances.
Malcolm Smith [Tue, 6 Aug 2024 04:28:58 +0000 (05:28 +0100)]
gh-116622: Android logging fixes (#122698)
Modifies the handling of stdout/stderr redirection on Android to accomodate
the rate and buffer size limits imposed by Android's logging infrastructure.
gh-122637: fix tanh(±0+infj) and tanh(±0+nanj) to return ±0+nanj (#122638)
As per C11 DR#471, ctanh (0 + i NaN) and ctanh (0 + i Inf) should return
0 + i NaN (with "invalid" exception in the second case). This has
corresponding implications for ctan(z), as its errors and special cases
are handled as if the operation is implemented by -i*ctanh(i*z).
This patch fixes cmath's code to do same.
As per C11 DR#471 (adjusted resolution accepted for C17), cacosh (0 +
iNaN) should return NaN ± i pi/2, not NaN + iNaN. This patch
fixes cmath's code to do same.
gh-122313: Clean up deep recursion guarding code in the compiler (GH-122640)
Add ENTER_RECURSIVE and LEAVE_RECURSIVE macros in ast.c, ast_opt.c and
symtable.c. Remove VISIT_QUIT macro in symtable.c.
The current recursion depth counter only needs to be updated during
normal execution -- all functions should just return an error code
if an error occurs.
Sam Gross [Fri, 2 Aug 2024 16:11:44 +0000 (12:11 -0400)]
gh-122527: Fix a crash on deallocation of `PyStructSequence` (GH-122577)
The `PyStructSequence` destructor would crash if it was deallocated after
its type's dictionary was cleared by the GC, because it couldn't compute
the "real size" of the instance. This could occur with relatively
straightforward code in the free-threaded build or with a reference
cycle involving the type in the default build, due to differing orders
in which `tp_clear()` was called.
Account for the non-sequence fields in `tp_basicsize` and use that,
along with `Py_SIZE()`, to compute the "real" size of a
`PyStructSequence` in the dealloc function. This avoids the accesses to
the type's dictionary during dealloc, which were unsafe.
John Riggles [Fri, 2 Aug 2024 03:02:43 +0000 (23:02 -0400)]
gh-120083: Add IDLE Hovertip foreground color needed for recent macOS (#120605)
On recent versions of macOS (sometime between Catalina and Sonoma 14.5), the default Hovertip foreground color changed from black to white, thereby matching the background. This might be a matter of matching the white foreground of the dark-mode text. The unreadable result is shown here (#120083 (comment)).
The foreground and background colors were made parameters so we can pass different colors for future additional hovertips in IDLE.
---------
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
This flag was added as an escape hatch in gh-91401 and backported to
Python 3.10. The flag broke at some point between its addition and now.
As there is currently no publicly known environments that require this,
remove it rather than work on fixing it.
This leaves the flag in the subprocess module to not break code which
may have used / checked the flag itself.
Terry Jan Reedy [Tue, 30 Jul 2024 22:29:52 +0000 (18:29 -0400)]
GH-122482: Make About IDLE direct discussion to DPO (#122483)
Currently, idle-dev@python.org and idle-dev mailing list
serve to collect spam (90+%). Change About IDLE to direct
discussions to discuss.python.org. Users are already
doing so.
Petr Viktorin [Tue, 30 Jul 2024 22:19:48 +0000 (00:19 +0200)]
gh-121650: Encode newlines in headers, and verify headers are sound (GH-122233)
## Encode header parts that contain newlines
Per RFC 2047:
> [...] these encoding schemes allow the
> encoding of arbitrary octet values, mail readers that implement this
> decoding should also ensure that display of the decoded data on the
> recipient's terminal will not cause unwanted side-effects
It seems that the "quoted-word" scheme is a valid way to include
a newline character in a header value, just like we already allow
undecodable bytes or control characters.
They do need to be properly quoted when serialized to text, though.
## Verify that email headers are well-formed
This should fail for custom fold() implementations that aren't careful
about newlines.
Co-authored-by: Bas Bloemsaat <bas@bloemsaat.org> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Sam Gross [Tue, 30 Jul 2024 17:53:47 +0000 (13:53 -0400)]
gh-117657: Avoid race in `PAUSE_ADAPTIVE_COUNTER` in free-threaded build (#122190)
The adaptive counter doesn't do anything currently in the free-threaded
build and TSan reports a data race due to concurrent modifications to
the counter.