[3.10] gh-76963: PEP3118 itemsize of an empty ctypes array should not be 0 (GH-5576) (#100451)
gh-76963: PEP3118 itemsize of an empty ctypes array should not be 0 (GH-5576)
The itemsize returned in a memoryview of a ctypes array is now computed from the item type, instead of dividing the total size by the length and assuming that the length is not zero.
(cherry picked from commit 84bc6a4f25fcf467813ee12b74118f7b1b54e285)
Co-authored-by: Eric Wieser <wieser.eric@gmail.com>
Mentioned as a desired change by terryjreedy on the corresponding issue,
since Tk is not a subclass of Toplevel.
(cherry picked from commit ad23da0e77c4c4a3185df64d1c199b8c17e08188)
In the docstring of `ParamSpec`, the name of `P = ParamSpec('P')` was
mistakenly written as `'T'`.
(cherry picked from commit 68981578eceee763da4163e93cf653cc6b1b6d35)
Shantanu [Wed, 21 Dec 2022 05:25:18 +0000 (23:25 -0600)]
[3.10] gh-85267: Improvements to inspect.signature __text_signature__ handling (GH-98796) (#100393)
This makes a couple related changes to inspect.signature's behaviour
when parsing a signature from `__text_signature__`.
First, `inspect.signature` is documented as only raising ValueError or
TypeError. However, in some cases, we could raise RuntimeError. This PR
changes that, thereby fixing GH-83685.
(Note that the new ValueErrors in RewriteSymbolics are caught and then
reraised with a message)
Second, `inspect.signature` could randomly drop parameters that it
didn't understand (corresponding to `return None` in the `p` function).
This is the core issue in GH-85267. I think this is very surprising
behaviour and it seems better to fail outright.
Third, adding this new failure broke a couple tests. To fix them (and to
e.g. allow `inspect.signature(select.epoll.register)` as in GH-85267), I
add constant folding of a couple binary operations to RewriteSymbolics.
(There's some discussion of making signature expression evaluation
arbitrary powerful in GH-68155. I think that's out of scope. The
additional constant folding here is pretty straightforward, useful, and
not much of a slippery slope)
Fourth, while GH-85267 is incorrect about the cause of the issue, it turns
out if you had consecutive newlines in __text_signature__, you'd get
`tokenize.TokenError`.
Finally, the `if name is invalid:` code path was dead, since
`parse_name` never returned `invalid`..
(cherry picked from commit 79311cbfe718f17c89bab67d7f89da3931bfa2ac)
Example needed to be indented. Was trying to call a context manger `pr` (from ` with cProfile.Profile() as pr:`) wot perform ` pr.print_stats()` once it had already exited.
(cherry picked from commit 8711b59f7ac1803307d340e357e025043fbe2f39)
gh-100001: Also escape \s in http.server log messages. (GH-100038)
Also \ escape \s in the http.server BaseHTTPRequestHandler.log_message so
that it is technically possible to parse the line and reconstruct what the
original data was. Without this a \xHH is ambiguious as to if it is a hex
replacement we put in or the characters r"\x" came through in the original
request line.
(cherry picked from commit 7e29398407dbd53b714702abb89aa2fd7baca48a)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
gh-100001: Omit control characters in http.server stderr logs. (GH-100002)
Replace control characters in http.server.BaseHTTPRequestHandler.log_message with an escaped \xHH sequence to avoid causing problems for the terminal the output is printed to.
(cherry picked from commit d8ab0a4dfa48f881b4ac9ab857d2e9de42f72828)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Łukasz Langa [Mon, 5 Dec 2022 16:58:30 +0000 (17:58 +0100)]
[3.10] gh-60203: Revert changes in cycle.__setstate__ (GH-99982) (#100017)
In case if only True/False be supported as boolean arguments in future,
we should continue to support 1/0 here.
(cherry picked from commit 922a6cf6c265e2763a003291885ff74d46203fc3)
gh-99892: test_unicodedata: skip test on download failure (GH-100011)
Skip test_normalization() of test_unicodedata if it fails to download
NormalizationTest.txt file from pythontest.net.
(cherry picked from commit 2488c1e1b66366a3a933ff248eff080fabd2351c)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-98458: unittest: bugfix for infinite loop while handling chained exceptions that contain cycles (GH-98459)
* Bugfix addressing infinite loop while handling self-referencing chained exception in TestResult._clean_tracebacks()
* Bugfix extended to properly handle exception cycles in _clean_tracebacks. The "seen" set follows the approach used in the TracebackException class (thank you @iritkatriel for pointing it out)
* adds a test for a single chained exception that holds a self-loop in its __cause__ and __context__ attributes
(cherry picked from commit 72ec518203c3f3577a5e888b12f10bb49060e6c2)
Luke Garland [Fri, 2 Dec 2022 10:13:33 +0000 (03:13 -0700)]
bpo-40882: Fix a memory leak in SharedMemory on Windows (GH-20684)
In multiprocessing.shared_memory.SharedMemory(), the temporary view
returned by MapViewOfFile() should be unmapped when it is no longer
needed.
(cherry picked from commit 85c128e34daec7625b74746e127afa25888ccde1)
Cast size_t to Py_ssize_t, rather than casting it to long. On 64-bit
Windows, long is 32-bit whereas Py_ssize_t is 64-bit.
(cherry picked from commit 9707bf228e008485a3fbb63aa7ee28cf88014f91)
Co-authored-by: Victor Stinner <vstinner@python.org>
These slots are marked "should be treated as read-only" in the
table at the start of the document. That doesn't say anything about
setting them in the static struct.
`tp_bases` docs did say that it should be ``NULL`` (TIL!). If you
ignore that, seemingly nothing bad happens. However, some slots
may not be inherited, depending on which sub-slot structs are present.
(FWIW, NumPy sets tp_bases and is affected by the quirk -- though to
be fair, its DUAL_INHERIT code probably predates tp_bases docs, and
also the result happens to be benign.)
This patch makes things explicit.
It also makes the summary table legend easier to scan.
[3.10] gh-99502: mention bytes-like objects as input in `secrets.compare_digest` (GH-99512) (#99790)
gh-99502: mention bytes-like objects as input in `secrets.compare_digest` (GH-99512)
Now it is in sync with https://docs.python.org/3/library/hmac.htmlGH-hmac.compare_digest
It is the same function, just re-exported. So, I guess they should mention the same input types.
(cherry picked from commit 47d673d81fc315069c14f9438ebe61fb70ef1ccc)
A opy of GH-98549, whose author (@icecream17) uses a school computer that blocks the CLA site. I did not mention this in commit comment above so CLA bot does not pick up the name and request the CLA again.
(cherry picked from commit a86d8545221b16e714ffe3bda5afafc1d4748d13)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Fix rendering of audioop license in Doc/license.rst (GH-99752)
Also some cosmetic blank line additions for consistency with the
formatting of the rest of the file.
(cherry picked from commit b5b3904f05e77f044f158307bc6bdd2bc1b670a2)
Dong Uk, Kang [Wed, 23 Nov 2022 18:39:04 +0000 (03:39 +0900)]
[3.10] gh-88863: Clear ref cycles to resolve leak when asyncio.open_connection raises (GH-95739) (#99722)
Break reference cycles to resolve memory leak, by
removing local exception and future instances from the frame.
(cherry picked from commit 995f6170c78570eca818f7e7dbd8a7661c171a81)
Co-authored-by: Dong Uk, Kang <nailbrainz@gmail.com>
GH-95283: Add note about compilers in Mac/README.txt (GH-99506)
The build machinery assumes that the compiler that's used
to build on macOS includes an SDK that's at least as new
as the OS version on the build machine. Explicitly mention
this in Mac/README.txt.
(cherry picked from commit 8f024a02d7d63315ecc3479f0715e927f48fc91b)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
GH-92892: Add section about variadic functions to ctypes documentation (GH-99529)
On some platforms, and in particular macOS/arm64, the calling
convention for variadic arguments is different from the regular
calling convention. Add a section to the documentation to document
this.
(cherry picked from commit bc3a11d21ddef28047b18c0f6a5068fa9fb16da2)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
[3.10] gh-99146 struct module documentation should have more predictable examples/warnings (GH-99141) (GH-99703)
gh-99146 struct module documentation should have more predictable examples/warnings (GH-99141)
* nail down a couple examples to have more predictable output
* update a number of things, but this is really just a stash...
* added an applications section to describe typical uses for native and machine-independent formats
* make sure all format strings use a format prefix character
* responding to comments from @gpshead. Not likely finished yet.
* This got more involved than I expected...
* respond to several PR comments
* a lot of wordsmithing
* try and be more consistent in use of ``x`` vs ``'x'``
* expand examples a bit
* update the "see also" to be more up-to-date
* original examples relied on import * so present all examples as if
* reformat based on @gpshead comment (missed before)
gh-99578: Fix refleak in _imp.create_builtin() (GH-99642)
Fix a reference bug in _imp.create_builtin() after the creation of
the first sub-interpreter for modules "builtins" and "sys".
(cherry picked from commit cb2ef8b2acbb231c207207d3375b2f8b0077a6ee)
Co-authored-by: Victor Stinner <vstinner@python.org>
Doc: Replace question mark with fullstop (GH-99558)
The sentence "Set the LC_CTYPE locale to the user preferred locale." should end with a period
instead of a question mark.
(cherry picked from commit 0e09d2cc59cad61ad6a7a79aade52e9a2cfa7b34)
Co-authored-by: Rafael Fontenelle <rffontenelle@users.noreply.github.com>
gh-98366: use sphinx.locale._ as gettext() in pyspecific.py (GH-98437)
fix(doc-tools): use sphinx.locale._ as gettext() for backward-compatibility in pyspecific.py
[why] spinix 5.3 changed locale.translators from a defaultdict(gettext.NullTranslations) to a dict, which leads to failure of pyspecific.py. Use sphinx.locale._ as gettext to fix the issue.
(cherry picked from commit d26ee8a0a552de111b8245ef0de63e3f3f535d9f)
Co-authored-by: Wei-Hsiang (Matt) Wang <mattwang44@gmail.com>
Fix broken link in `asyncio-subprocesses` doc (GH-99214)
GH- Fix broken link in Doc/library/asyncio-subprocess.rst
This is a trivial fix in documentation to fix a broken link.
There is a broken link in [Doc/library/asyncio-subprocess.rst](https://docs.python.org/3/library/asyncio-subprocess.htmlGH-asyncio.subprocess.Process) for the function ``wait_for``:
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