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>
The C accelerated _elementtree module now initializes hash randomization
salt from _Py_HashSecret instead of libexpat's default CPRNG.
Signed-off-by: Christian Heimes <christian@python.org>
https://bugs.python.org/issue34623
(cherry picked from commit cb5778f00c)
Co-authored-by: Christian Heimes <christian@python.org>
* bpo-34589: Make _PyCoreConfig.coerce_c_locale private (GH-9371)
_PyCoreConfig:
* Rename coerce_c_locale to _coerce_c_locale
* Rename coerce_c_locale_warn to _coerce_c_locale_warn
These fields are now private (name prefixed by "_").
(cherry picked from commit 188ebfa475)
* bpo-34589: C locale coercion off by default (GH-9073)
Py_Initialize() and Py_Main() cannot enable the C locale coercion
(PEP 538) anymore: it is always disabled. It can now only be enabled
by the Python program ("python3).
test_embed: get_filesystem_encoding() doesn't have to set PYTHONUTF8
nor PYTHONCOERCECLOCALE, these variables are already set in the
parent.
(cherry picked from commit 7a0791b699)
* bpo-34589: Add -X coerce_c_locale command line option (GH-9378)
Add a new -X coerce_c_locale command line option to control C locale
coercion (PEP 538).
(cherry picked from commit dbdee0073c)
* -X dev: it is now possible to override the memory allocator using
PYTHONMALLOC even if the developer mode is enabled.
* Add _Py_InitializeFromConfig()
* Add _Py_Initialize_ReadEnvVars() to set global configuration
variables from environment variables
* Fix the code to initialize Python: Py_Initialize() now also reads
environment variables
* _Py_InitializeCore() can now be called twice: the second call
only replaces the configuration.
* Write unit tests on Py_Initialize() and the different ways to
configure Python
* The isolated mode now always sets Py_IgnoreEnvironmentFlag and
Py_NoUserSiteDirectory to 1.
* pymain_read_conf() now saves/restores the configuration
if the encoding changed
Remove the docstring attribute of AST types and restore docstring
expression as a first stmt in their body.
Co-authored-by: INADA Naoki <methane@users.noreply.github.com>
* Set the limited API version for PyImport_GetModule and PyOS_*Fork
functions.
* Add PyImport_GetModule and Py_UTF8Mode in PC/python3.def.
* Add several functions in Doc/data/refcounts.dat.
(cherry picked from commit 4e29f566e8)
When comprehensions switched to using a nested scope, the old
code for generating a temporary name to hold the accumulation
target became redundant, but was never actually removed.
Patch by Nitish Chandra.
(cherry picked from commit 3a087beddd)
Co-authored-by: Nitish Chandra <nitishchandrachinta@gmail.com>
Fix a rare but potential pre-exec child process deadlock in subprocess on POSIX systems when marking file descriptors inheritable on exec in the child process. This bug appears to have been introduced in 3.4 with the inheritable file descriptors support.
This also changes Python/fileutils.c `set_inheritable` to use the "slow" two `fcntl` syscall path instead of the "fast" single `ioctl` syscall path when asked to be async signal safe (by way of being asked not to raise exceptions). `ioctl` is not a POSIX async-signal-safe approved function.
ref: http://pubs.opengroup.org/onlinepubs/9699919799/functions/V2_chap02.html
(cherry picked from commit c1e46e94de)
Co-authored-by: Alexey Izbyshev <izbyshev@users.noreply.github.com>
This reverts commit 72a0d218dc.
The reverted commit had a few issues so it was unanimously decided
to undo it. See the bpo issue for details.
(cherry picked from commit 383b32fe10)
Co-authored-by: Yury Selivanov <yury@magic.io>
* Document `from __future__ import annotations`
* Provide plumbing and tests for `from __future__ import annotations`
* Implement unparsing the AST back to string form
This is required for PEP 563 and as such only implements a part of the
unparsing process that covers expressions.
* Add timezone to datetime C API
* Add documentation for timezone C API macros
* Add dedicated tests for datetime type check macros
* Remove superfluous C API test
* Drop support for TimeZoneType in datetime C API
* Expose UTC singleton to the datetime C API
* Update datetime C-API documentation to include links
* Add reference count information for timezone constructors
_PyCoreConfig_Read() is now responsible to compute sys.path.
So sys.path is now computed before calling _Py_InitializeCore().
Changes:
* Add module_search_path, module_search_paths, executable, prefix,
base_prefix, exec_prefix and base_exec_prefix to _PyCoreConfig.
* _PyMainInterpreterConfig_Read() now only converts wchar_t** lists
into a Python list, it doesn't compute sys.path anymore.
glibc is deprecating libcrypt in favor of libxcrypt, however python assumes
that crypt.h will always be included. This change makes the header inclusion
explicit when libxcrypt is present on the system.
Ned Deily
Miss Islington (bot)
Victor Stinner
Serhiy Storchaka
Eric Snow
Mark Shannon
Pablo Galindo
Benjamin Peterson
INADA Naoki
Guido van Rossum
Paul Ganssle
Victor Stinner
stratakis
Yury Selivanov