Make grp module methods getgrgid() and getgrnam() thread-safe when the GIL is disabled and getgrgid_r()/getgrnam_r() C APIs are not available.
---------
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
* Make musl test skips smarter (fixes Alpine errors)
A relatively small number of tests fail when the underlying c library is
provided by musl. This was originally reported in bpo-46390 by
Christian Heimes. Among other changes, these tests were marked for
skipping in gh-31947/ef1327e3 as part of bpo-40280 (emscripten support),
but the skips were conditioned on the *platform* being emscripten (or
wasi, skips for which ere added in 9b50585e02).
In gh-131071 Victor Stinner added a linked_to_musl function to enable
skipping a test in test_math that fails under musl, like it does on a
number of other platforms. This check can successfully detect that
python is running under musl on Alpine, which was the original problem
report in bpo-46390.
This PR replaces Victor's solution with an enhancement to
platform.libc_ver that does the check more cheaply, and also gets the
version number. The latter is important because the math test being
skipped is due to a bug in musl that has been fixed, but as of this
checkin date has not yet been released. When it is, the test skip can
be fixed to check for the minimum needed version.
The enhanced version of linked_to_musl is also used to do the skips of
the other tests that generically fail under musl, as opposed to
emscripten or wasi only failures. This will allow these tests to be
skipped automatically on Alpine.
This PR does *not* enhance libc_ver to support emscripten and wasi, as
I'm not familiar with those platforms; instead it returns a version
triple of (0, 0, 0) for those platforms. This means the musl tests will
be skipped regardless of musl version, so ideally someone will add
support to libc_ver for these platforms.
* Platform tests and bug fixes.
In adding tests for the new platform code I found a bug in the old code:
if a valid version is passed for version and it is greater than the
version found for an so *and* there is no glibc version, then the
version from the argument was returned. The code changes here fix
that.
* Add support docs, including for some preexisting is_xxx's.
* Add news item about libc_ver enhancement.
* Prettify platform re expression using re.VERBOSE.
This adds a new command line argument, `--parallel-threads` to the
regression test runner to allow it to run individual tests in multiple
threads in parallel in order to find multithreading bugs.
Some tests pass when run with `--parallel-threads`, but there's still
more work before the entire suite passes.
The text clearly seems to be referencing `TestFuncAcceptsSequencesMixin`,
for which no target is available. Name the class properly and suppress
the dangling reference.
Integer to and from text conversions via CPython's bignum `int` type is not safe against denial of service attacks due to malicious input. Very large input strings with hundred thousands of digits can consume several CPU seconds.
This PR comes fresh from a pile of work done in our private PSRT security response team repo.
Signed-off-by: Christian Heimes [Red Hat] <christian@python.org>
Tons-of-polishing-up-by: Gregory P. Smith [Google] <greg@krypto.org>
Reviews via the private PSRT repo via many others (see the NEWS entry in the PR).
<!-- gh-issue-number: gh-95778 -->
* Issue: gh-95778
<!-- /gh-issue-number -->
I wrote up [a one pager for the release managers](https://docs.google.com/document/d/1KjuF_aXlzPUxTK4BMgezGJ2Pn7uevfX7g0_mvgHlL7Y/edit#). Much of that text wound up in the Issue. Backports PRs already exist. See the issue for links.
- Limited API needs to be enabled per source file
- Some builds don't support Limited API, so Limited API tests must be skipped on those builds
(currently this is `Py_TRACE_REFS`, but that may change.)
- `Py_LIMITED_API` must be defined before `<Python.h>` is included.
This puts the hoop-jumping in `testcapi/parts.h`, so individual
test files can be relatively simple. (Currently that's only
`vectorcall_limited.c`, imagine more.)
This is a rework of #5774 on current main. I was a bit more
conservative in making changes than the original PR.
See @csabella's comments on issue #77024 and the discussion
on #5774 for explanations of several of the changes.
Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Replace old names when they refer to actual versions of macOS.
Keep historical names in references to older versions.
Co-authored-by: Patrick Reader <_@pxeger.com>
The issue being resolved is shown in the 3.10 docs (if you select docs for older versions you won't see a visual glitch).
The newer sphinx version that produces the 3.10 docs doesn't treat the backslash to escape things in some situations it previously did.
On Linux, skip tests using multiprocessing if the current user cannot
create a file in /dev/shm/ directory. Add the
skip_if_broken_multiprocessing_synchronize() function to the
test.support module.
Move TransientResource, time_out, socket_peer_reset and
ioerror_peer_reset from test.support to test_urllib2net.
Remove "import errno" from test.support.
