Fix the documentation of copy2, as it does not copy file ownership (user and
group), only mode, mtime, atime and flags.
The original text was confusing to developers as it suggested that this
command is the same as 'cp -p', but according to cp(1), '-p' copies file
ownership as well.
Clarify which metadata is copied by shutil.copystat in its docstring.
(cherry picked from commit 4f399be0e7)
References could leak, NULL could be dereferenced, and the Expat parser could
be double freed when some errors raised.
(cherry picked from commit 9f3ed3e213)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
* Use _PyUnicode_Copy in sanitize_isoformat_str
* Use repr in fromisoformat error message
This reverses commit 67b74a98b2 per Serhiy Storchaka's suggestion:
I suggested to use %R in the error message because including the raw
string can be confusing in the case of empty string, or string
containing trailing whitespaces, invisible or unprintable characters.
We agree that it is better to change both the C and pure Python versions
to use repr.
* Retain non-sanitized dtstr for error printing
This does not create an extra string, it just holds on to a reference to
the original input string for purposes of creating the error message.
* PEP 7 fixes to from_isoformat
* Separate handling of Unicode and other errors
In the initial implementation, errors other than encoding errors would
both raise an error indicating an invalid format, which would not be
true for errors like MemoryError.
* Drop needs_decref from _sanitize_isoformat_str
Instead _sanitize_isoformat_str returns a new reference, even to the
original string.
(cherry picked from commit 3df85404d4)
Co-authored-by: Paul Ganssle <pganssle@users.noreply.github.com>
Constructing bytes from mutating list could cause a crash.
(cherry picked from commit 914f9a078f)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Guard the `CLOCK_GETTIME` et al macros in `timemodule` based on the availability of the parent functions
(cherry picked from commit 94451182cc)
Co-authored-by: Max Bélanger <aeromax@gmail.com>
* Add News entry for the change in multiprocessing.reduction.recvfds
made in GH-9613.
(cherry picked from commit bd036d3d15)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
Add restriction on the offset parameter for mmap.flush.
Explain that ALLOCATIONGRANULARITY is the same as PAGESIZE in Unix.
(cherry picked from commit 027664a3d5)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
path_error() uses GetLastError() on Windows, but some os functions
are implemented via CRT APIs which report errors via errno.
This may result in raising OSError with invalid error code (such
as zero).
Introduce posix_path_error() function and use it where appropriate.
(cherry picked from commit 834603112e)
Co-authored-by: Alexey Izbyshev <izbyshev@ispras.ru>
On failure, _PyBytes_Resize() will deallocate the bytes object and set
"result" to NULL.
https://bugs.python.org/issue34824
(cherry picked from commit 365ad2ead5)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
The xml.sax and xml.dom.domreg modules now obey
sys.flags.ignore_environment.
Signed-off-by: Christian Heimes <christian@python.org>
(cherry picked from commit 223e501fb9)
Co-authored-by: Christian Heimes <christian@python.org>
Address a C undefined behavior signed integer overflow issue in set object table resizing. Our -fwrapv compiler flag and practical reasons why sets are unlikely to get this large should mean this was never an issue but it was incorrect code that generates code analysis warnings.
Co-authored-by: Sergey Fedoseev <fedoseev.sergey@gmail.com>
The docs in `library/unittest.mock` have been updated to remove
confusing terms about submock and be explicit about the behavior
expected.
(cherry picked from commit 96200eb2ff)
Co-authored-by: Mario Corchero <mariocj89@gmail.com>
The reprlib code was copied here instead of importing reprlib. I'm not sure if we really need to avoid the import, but since I expect dataclasses to be more common that reprlib, it seems wise. Plus, the code is small.
(cherry picked from commit dd13c88b53)
Co-authored-by: Srinivas Thatiparthy (శ్రీనివాస్ తాటిపర్తి) <srinivasreddy@users.noreply.github.com>
Adding `max_num_fields` to `cgi.FieldStorage` to make DOS attacks harder by
limiting the number of `MiniFieldStorage` objects created by `FieldStorage`.
(cherry picked from commit 209144831b)
Co-authored-by: matthewbelisle-wf <matthew.belisle@workiva.com>
According to the versionchanged note, the `strict` argument was removed in 3.3 and `policy` was added, but the name of the argument in the paragraph wasn't updated.
(cherry picked from commit a5ca98537b)
Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
C implementation of xml.etree.ElementTree.Element.__setstate__()
leaked references to children when called for already initialized
element.
(cherry picked from commit 6f906b3d72)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
On macOS, fix reading from and writing into a file with a size larger than 2 GiB.
(cherry picked from commit 74a8b6ea7e)
Co-authored-by: Stéphane Wirtel <stephane@wirtel.be>
Restores the use of pyexpatns.h to isolate our embedded copy of the expat C
library so that its symbols do not conflict at link or dynamic loading time
with an embedding application or other extension modules with their own
version of libexpat.
5dc3f23b5fGH-diff-3afaf7274c90ce1b7405f75ad825f545 inadvertently removed it when upgrading expat.
(cherry picked from commit 9d4712bc8f)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
https://bugs.python.org/issue35011
[3.7] [bpo-23420](https://bugs.python.org/issue23420): Verify the value of '-s' when execute the CLI of cProfile (GH-9925)
Verify the value for the parameter '-s' of the cProfile CLI. Patch by Robert
Kuska.
Co-authored-by: Robert Kuska <rkuska@gmail.com>
(cherry picked from commit fcd5e84a51)
https://bugs.python.org/issue23420
Fix test_cmd_line_script.test_nonexisting_script(): the test must not
rely on sys.executable, since main.c uses config->program which can
be different than sys.executable in many cases (for example, on macOS
when using the framework).
(cherry picked from commit ea75187c68)
Co-authored-by: Victor Stinner <vstinner@redhat.com>
Zsolt Cserna
Miss Islington (bot)
Ned Deily
Serhiy Storchaka
Victor Stinner
Juliette Monsel
Stéphane Wirtel