We're no longer using _Py_IDENTIFIER() (or _Py_static_string()) in any core CPython code. It is still used in a number of non-builtin stdlib modules.
The replacement is: PyUnicodeObject (not pointer) fields under _PyRuntimeState, statically initialized as part of _PyRuntime. A new _Py_GET_GLOBAL_IDENTIFIER() macro facilitates lookup of the fields (along with _Py_GET_GLOBAL_STRING() for non-identifier strings).
https://bugs.python.org/issue46541#msg411799 explains the rationale for this change.
The core of the change is in:
* (new) Include/internal/pycore_global_strings.h - the declarations for the global strings, along with the macros
* Include/internal/pycore_runtime_init.h - added the static initializers for the global strings
* Include/internal/pycore_global_objects.h - where the struct in pycore_global_strings.h is hooked into _PyRuntimeState
* Tools/scripts/generate_global_objects.py - added generation of the global string declarations and static initializers
I've also added a --check flag to generate_global_objects.py (along with make check-global-objects) to check for unused global strings. That check is added to the PR CI config.
The remainder of this change updates the core code to use _Py_GET_GLOBAL_IDENTIFIER() instead of _Py_IDENTIFIER() and the related _Py*Id functions (likewise for _Py_GET_GLOBAL_STRING() instead of _Py_static_string()). This includes adding a few functions where there wasn't already an alternative to _Py*Id(), replacing the _Py_Identifier * parameter with PyObject *.
The following are not changed (yet):
* stop using _Py_IDENTIFIER() in the stdlib modules
* (maybe) get rid of _Py_IDENTIFIER(), etc. entirely -- this may not be doable as at least one package on PyPI using this (private) API
* (maybe) intern the strings during runtime init
https://bugs.python.org/issue46541
Skip the 3 slowest tests of the Address Sanitizer CI of GitHub
Actions:
* test_tools
* test_peg_generator
* test_concurrent_futures
These tests take between 5 and 20 minutes on this CI which makes this
CI job the slowest. Making this CI job faster makes the whole Python
workflow faster. These tests are run on all others CIs.
Example of Address Sanitizer output:
10 slowest tests:
- test_peg_generator: 17 min 33 sec
- test_tools: 8 min 27 sec
- test_concurrent_futures: 5 min 24 sec
- test_zipfile: 2 min 41 sec
- test_compileall: 2 min 21 sec
- test_asyncio: 2 min 17 sec
- test_gdb: 1 min 43 sec
- test_weakref: 1 min 35 sec
- test_pickle: 1 min 18 sec
- test_subprocess: 1 min 12 sec
Moreover, test_concurrent_futures also seems to be affected by
bpo-45200 bug: libasan dead lock in pthread_create().
Check that users don't push changes with outdated or patched autoconf.
The presence of runstatedir option and aclocal 1.16.3 are good markers.
Use my container image to regenerate autoconf files. "Check for changes"
will fail later when any file is regenerated.
Use ccache in check_generated_files to speed up testing.
Remove the asyncore and asynchat modules, deprecated in Python
3.6: use the asyncio module instead.
Remove the smtpd module, deprecated in Python 3.6: the aiosmtpd
module can be used instead, it is based on asyncio.
* Remove asyncore, asynchat and smtpd documentation
* Remove test_asyncore, test_asynchat and test_smtpd
* Rename Lib/asynchat.py to Lib/test/support/_asynchat.py
* Rename Lib/asyncore.py to Lib/test/support/_asyncore.py
* Rename Lib/smtpd.py to Lib/test/support/_smtpd.py
* Remove DeprecationWarning from private _asyncore, _asynchat and
_smtpd modules
* _smtpd: remove deprecated properties
Add Modules subdirs to SRCDIRS to generate directories for out-of-tree
object files.
Debian wants ncurses lib. Works on Fedora, too.
Debian also needs pkg-config to detect correct flags.
Remove more outdated comments. Makefile now tracks header dependencies
-lintl is injected by configure when needed. Build _dbm with
gdbm-compat.
Group some modules by purpose. socket, select, and mmap work on Windows,
too.
Frozen modules must be added to several files in order to work properly. Before this change this had to be done manually. Here we add a tool to generate the relevant lines in those files instead. This helps us avoid mistakes and omissions.
https://bugs.python.org/issue45019
Hugo van Kemenade
Brandt Bucher
Erlend Egeberg Aasland
Jelle Zijlstra
Eric Snow
Steve Dower
Pablo Galindo Salgado
Victor Stinner
Mark Dickinson
Irit Katriel
Nikita Sobolev
Kumar Aditya
Christian Heimes
dependabot[bot]
Ryan Mast
Serhiy Storchaka
Ken Jin
Łukasz Langa
Julien Palard
Marcono1234