Eric Snow [Wed, 24 Jul 2024 19:07:32 +0000 (13:07 -0600)]
[3.12] gh-117482: Simplify the Fix For Builtin Types Slot Wrappers (gh-122241)
In gh-121602, I applied a fix to a builtin types initialization bug.
That fix made sense in the context of some broader future changes,
but introduced a little bit of extra complexity. For earlier versions
those future changes are not relevant; we can avoid the extra complexity.
Thus we can revert that earlier change and replace it with this one,
which is more focused and conceptually simpler. This is essentially
the implementation of an idea that @markshannon pointed out to me.
Note that this change would be much smaller if we didn't have to deal
with repr compatibility for builtin types that explicitly inherit tp slots
(see expect_manually_inherited()). The alternative is to stop
*explicitly* inheriting tp slots in static PyTypeObject values,
which is churn that we can do separately.
[3.12] GH-120754: Add more tests around seek + readall (GH-122103) (#122216)
GH-120754: Add more tests around seek + readall (GH-122103)
In the process of speeding up readall, A number of related tests
(ex. large file tests in test_zipfile) found problems with the
change I was making. This adds I/O tests to specifically test these
cases to help ensure they don't regress and hopefully make debugging
easier.
[3.12] gh-120930: Remove extra blank occuring in wrapped encoded words in email headers (GH-121747) (GH-121964)
gh-120930: Remove extra blank occuring in wrapped encoded words in email headers (GH-121747)
(cherry picked from commit cecaceea31f32f01b5617989e3dc8b2077f53f89)
[3.12] gh-59022: Added tests for `pkgutil.extend_path` (GH-121673) (GH-121950)
This adds tests for the documented behaviour of `pkgutil.extend_path`
regarding different argument types as well as for `*.pkg` files.
(cherry picked from commit 8f2532168b4630e413a42ccb5e458708808702ea)
Co-authored-by: Andreas Stocker <andreas@stocker.co.it>
Petr Viktorin [Fri, 19 Jul 2024 14:13:34 +0000 (16:13 +0200)]
[3.12] gh-121160: Note that readline libraries using different history formats. (GH-121327) (GH-122031)
This is not something we can do too much about, without help from the
underlying libraries.
(cherry picked from commit 709db44255eb5d73fc22a1341dd0253e71ddfda9)
[3.12] gh-120289: Disallow disable() and clear() in external timer to prevent use-after-free (GH-120297) (#121989)
gh-120289: Disallow disable() and clear() in external timer to prevent use-after-free (GH-120297)
(cherry picked from commit 1ab17782832bb1b6baa915627aead3e3516a0894)
[3.12] gh-121874: Define audit-event open parameters consistently (GH-121883) (GH-121955)
Use same names for parameters to avoid triggering a race-condition in Sphinx
that causes non-deterministic output.
(cherry picked from commit 24cf867bed6035f33cd3b38d89d303b7522f12a6)
Co-authored-by: Bernhard M. Wiedemann <bwiedemann@suse.de>
[3.12] gh-78889: Stop IDLE Shell freezes from sys.stdout.shell.xyz (GH-121876) (#121912)
gh-78889: Stop IDLE Shell freezes from sys.stdout.shell.xyz (GH-121876)
Problem occurred when attribute xyz could not be pickled.
Since this is not trivial to selectively fix, block all
attributes (other than 'width'). IDLE does not access them
and they are private implementation details.
(cherry picked from commit 58753f33e47fe48906883dc010771f68c13b7e52)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
[3.12] gh-121153: Fix some errors with use of _PyLong_CompactValue() (GH-121154)
* The result has type Py_ssize_t, not intptr_t.
* Type cast between unsigned and signed integer types should be explicit.
* Downcasting should be explicit.
* Fix integer overflow check in sum().
(cherry picked from commit 1801545)
[3.12] gh-119189: Fix the power operator for Fraction (GH-119242) (GH-119835)
When using the ** operator or pow() with Fraction as the base
and an exponent that is not rational, a float, or a complex, the
fraction is no longer converted to a float.
(cherry picked from commit b9965ef282d6662145d2e05b080c811132ce6fde)
Co-authored-by: Joshua Herman <30265+zitterbewegung@users.noreply.github.com>
[3.12] gh-73159 Added clarifications in multiprocessing docs on that objects are pickled. (GH-121686) (#121728)
gh-73159 Added clarifications in multiprocessing docs on that objects are pickled. (GH-121686)
Added explicit comments about that objects are pickled when transmitted via multiprocessing queues and pipes.
(cherry picked from commit b5805892d55e769335c11a994b586355720263ba)
When builtin static types are initialized for a subinterpreter, various "tp" slots have already been inherited (for the main interpreter). This was interfering with the logic in add_operators() (in Objects/typeobject.c), causing a wrapper to get created when it shouldn't. This change fixes that by preserving the original data from the static type struct and checking that.
[3.12] GH-121439: Allow PyTupleObjects with an ob_size of 20 in the free_list to be reused (gh-121428) (#121566)
GH-121439: Allow PyTupleObjects with an ob_size of 20 in the free_list to be reused (gh-121428)
(cherry picked from commit 9585a1a2a251aaa15baf6579e13dd3be0cb05f1f)
[3.12] Update example of str.split, bytes.split (GH-121287) (#121416)
Update example of str.split, bytes.split (GH-121287)
In `{str,bytes}.strip(chars)`, multiple characters are not treated as a
prefix/suffix, but as individual characters. This may make users confuse
whether `split` has similar behavior.
Users may incorrectly expect that
`'Good morning, John.'.split(', .') == ['Good', 'morning', 'John']`
The tracemalloc_tracebacks hash table has traceback keys and NULL
values, but its destructors do not reflect this -- key_destroy_func is
NULL while value_destroy_func is raw_free. Swap these to free the
traceback keys instead.
(cherry picked from commit db39bc42f90c151b298f97b780e62703adbf1221)
Co-authored-by: Ali Tavallaie <tavallaie@users.noreply.github.com> Co-authored-by: Éric <merwok@netwok.org> Co-authored-by: Frank Dana <ferdnyc@gmail.com>
[3.12] gh-121084: Fix test_typing random leaks (GH-121360) (#121372)
gh-121084: Fix test_typing random leaks (GH-121360)
Clear typing ABC caches when running tests for refleaks (-R option):
call _abc_caches_clear() on typing abstract classes and their
subclasses.
(cherry picked from commit 5f660e8e2ca3acfb89ccbdd990f072149b6baa6a)
Co-authored-by: Victor Stinner <vstinner@python.org>
[3.12] gh-117983: Defer import of threading for lazy module loading (GH-120233) (GH-121350)
gh-117983: Defer import of threading for lazy module loading (GH-120233)
As noted in gh-117983, the import importlib.util can be triggered at
interpreter startup under some circumstances, so adding threading makes
it a potentially obligatory load.
Lazy loading is not used in the stdlib, so this removes an unnecessary
load for the majority of users and slightly increases the cost of the
first lazily loaded module.
An obligatory threading load breaks gevent, which monkeypatches the
stdlib. Although unsupported, there doesn't seem to be an offsetting
benefit to breaking their use case.
For reference, here are benchmarks for the current main branch:
```
❯ hyperfine -w 8 './python -c "import importlib.util"'
Benchmark 1: ./python -c "import importlib.util"
Time (mean ± σ): 9.7 ms ± 0.7 ms [User: 7.7 ms, System: 1.8 ms]
Range (min … max): 8.4 ms … 13.1 ms 313 runs
```
And with this patch:
```
❯ hyperfine -w 8 './python -c "import importlib.util"'
Benchmark 1: ./python -c "import importlib.util"
Time (mean ± σ): 8.4 ms ± 0.7 ms [User: 6.8 ms, System: 1.4 ms]
Range (min … max): 7.2 ms … 11.7 ms 352 runs
```
Compare to:
```
❯ hyperfine -w 8 './python -c pass'
Benchmark 1: ./python -c pass
Time (mean ± σ): 7.6 ms ± 0.6 ms [User: 5.9 ms, System: 1.6 ms]
Range (min … max): 6.7 ms … 11.3 ms 390 runs
```
[3.12] gh-121200: Log pwd entry in test_expanduser_pwd2() (GH-121207) (#121214)
gh-121200: Log pwd entry in test_expanduser_pwd2() (GH-121207)
Use subTest() to log the pwd entry in test_expanduser_pwd2() of
test_posixpath to help debugging.
(cherry picked from commit 05a6f8da6042cc87da1cd3824c1375d12753e5a1)
Co-authored-by: Victor Stinner <vstinner@python.org>
[3.12] gh-121188: Sanitize invalid XML characters in regrtest (GH-121195) (#121205)
gh-121188: Sanitize invalid XML characters in regrtest (GH-121195)
When creating the JUnit XML file, regrtest now escapes characters
which are invalid in XML, such as the chr(27) control character used
in ANSI escape sequences.
(cherry picked from commit af8c3d7a26d605099f5b3406a8d33ecddb77e8fb)
Co-authored-by: Victor Stinner <vstinner@python.org>
Barney Gale [Sat, 29 Jun 2024 17:50:01 +0000 (18:50 +0100)]
[3.12] GH-119054: Fix pathlib docs subtitle word order (#121167)
When backporting GH-120505 to 3.12, I accidentally transposed
"Permissions and ownership" into "Ownership and permissions".
Swap it back for consistency with 3.13 and main.
Barney Gale [Sat, 29 Jun 2024 15:38:39 +0000 (16:38 +0100)]
[3.12] GH-119054: Add "Expanding and resolving paths" section to pathlib docs. (GH-120970) (#121156)
Add dedicated subsection for `home()`, `expanduser()`, `cwd()`,
`absolute()`, `resolve()` and `readlink()`. The position of this section
keeps all the `Path` constructors (`Path()`, `Path.from_uri()`,
`Path.home()` and `Path.cwd()`) near the top. Within the section, closely
related methods are kept adjacent. Specifically:
- `home()` and `expanduser()` (the former calls the latter)
- `cwd()` and `absolute()` (the former calls the latter)
- `absolute()` and `resolve()` (both make paths absolute)
- `resolve()` and `readlink()` (both read symlink targets)
- Ditto `cwd()` and `absolute()`
- Ditto `absolute()` and `resolve()`
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