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* gh-84436: Implement Immortal Objects (gh-19474)Eddie Elizondo2023-04-221-2/+1
| | | | | | | | | This is the implementation of PEP683 Motivation: The PR introduces the ability to immortalize instances in CPython which bypasses reference counting. Tagging objects as immortal allows up to skip certain operations when we know that the object will be around for the entire execution of the runtime. Note that this by itself will bring a performance regression to the runtime due to the extra reference count checks. However, this brings the ability of having truly immutable objects that are useful in other contexts such as immutable data sharing between sub-interpreters.
* gh-102650: Remove duplicate include directives from multiple source files ↵chgnrdv2023-03-131-1/+0
| | | | | (#102651) Remove duplicate include directives from multiple source files
* GH-90699: disallow `_Py_IDENTIFIER` in core code (GH-99210)Kumar Aditya2022-11-091-2/+8
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* gh-96853: Restore test coverage for Py_Initialize(Ex) (GH-98212)Nick Coghlan2022-10-301-19/+43
| | | | | | | | | | | * As most of `test_embed` now uses `Py_InitializeFromConfig`, add a specific test case to cover `Py_Initialize` (and `Py_InitializeEx`) * Rename `_testembed` init helper to clarify the API used * Add a `PyConfig_Clear` call in `Py_InitializeEx` to make the code more obviously correct (it already didn't leak as none of the dynamically allocated config fields were being populated, but it's clearer if the wrappers follow the documented API usage guidelines)
* gh-98608: Change _Py_NewInterpreter() to _Py_NewInterpreterFromConfig() ↵Eric Snow2022-10-261-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | (gh-98609) (see https://github.com/python/cpython/issues/98608) This change does the following: 1. change the argument to a new `_PyInterpreterConfig` struct 2. rename the function to `_Py_NewInterpreterFromConfig()`, inspired by `Py_InitializeFromConfig()` (takes a `_PyInterpreterConfig` instead of `isolated_subinterpreter`) 3. split up the boolean `isolated_subinterpreter` into the corresponding multiple granular settings * allow_fork * allow_subprocess * allow_threads 4. add `PyInterpreterState.feature_flags` to store those settings 5. add a function for checking if a feature is enabled on an opaque `PyInterpreterState *` 6. drop `PyConfig._isolated_interpreter` The existing default (see `Py_NewInterpeter()` and `Py_Initialize*()`) allows fork, subprocess, and threads and the optional "isolated" interpreter (see the `_xxsubinterpreters` module) disables all three. None of that changes here; the defaults are preserved. Note that the given `_PyInterpreterConfig` will not be used outside `_Py_NewInterpreterFromConfig()`, nor preserved. This contrasts with how `PyConfig` is currently preserved, used, and even modified outside `Py_InitializeFromConfig()`. I'd rather just avoid that mess from the start for `_PyInterpreterConfig`. We can preserve it later if we find an actual need. This change allows us to follow up with a number of improvements (e.g. stop disallowing subprocess and support disallowing exec instead). (Note that this PR adds "private" symbols. We'll probably make them public, and add docs, in a separate change.)
* gh-96512: Move int_max_str_digits setting to PyConfig (#96944)Gregory P. Smith2022-10-031-0/+4
| | | | | | | | | | | It had to live as a global outside of PyConfig for stable ABI reasons in the pre-3.12 backports. This removes the `_Py_global_config_int_max_str_digits` and gets rid of the equivalent field in the internal `struct _is PyInterpreterState` as code can just use the existing nested config struct within that. Adds tests to verify unique settings and configs in subinterpreters.
* GH-96975: Skip incomplete frames in PyEval_GetFrame (GH-97003)Brandt Bucher2022-09-221-0/+68
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* gh-96678: Avoid undefined behaviour in test (#96672)Matthias Görgens2022-09-131-1/+1
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* bpo-45445: Revert "bpo-45445: Fail if an invalid X-option is provided in the ↵Pablo Galindo Salgado2022-07-311-8/+10
| | | | command line (GH-28823)" (#94745)
* gh-90815: Fix test_embed for Windows PGO build with mimalloc (GH-94790)neonene2022-07-131-0/+2
| | | Fixes the failure of PGO building with `mimalloc` on Windows, ensuring that `test_bpo20891` does not break profiling data (`python31*.pgc`).
* gh-91985: Ensure in-tree builds override platstdlib_dir in every path ↵neonene2022-06-161-0/+41
| | | | calculation (GH-93641)
* gh-57684: Add -P cmdline option and PYTHONSAFEPATH env var (#31542)Victor Stinner2022-05-051-1/+9
| | | | | | | | | | | | Add the -P command line option and the PYTHONSAFEPATH environment variable to not prepend a potentially unsafe path to sys.path. * Add sys.flags.safe_path flag. * Add PyConfig.safe_path member. * Programs/_bootstrap_python.c uses config.safe_path=0. * Update subprocess._optim_args_from_interpreter_flags() to handle the -P command line option. * Modules/getpath.py sets safe_path to 1 if a "._pth" file is present.
* bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized ↵Eric Snow2022-02-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | global objects. (gh-30928) 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
* bpo-46417: _testembed.c avoids Py_SetProgramName() (GH-30732)Victor Stinner2022-01-211-30/+32
| | | | | | * _testembed_Py_Initialize() now uses the PyConfig API, rather than deprecated Py_SetProgramName(). * Reduce INIT_LOOPS from 16 to 4: test_embed now takes 8.7 seconds rather than 14.7 seconds.
* bpo-46417: Finalize structseq types at exit (GH-30645)Victor Stinner2022-01-211-0/+40
| | | | | | | | | | | | | | | | | | Add _PyStructSequence_FiniType() and _PyStaticType_Dealloc() functions to finalize a structseq static type in Py_Finalize(). Currrently, these functions do nothing if Python is built in release mode. Clear static types: * AsyncGenHooksType: sys.set_asyncgen_hooks() * FlagsType: sys.flags * FloatInfoType: sys.float_info * Hash_InfoType: sys.hash_info * Int_InfoType: sys.int_info * ThreadInfoType: sys.thread_info * UnraisableHookArgsType: sys.unraisablehook * VersionInfoType: sys.version * WindowsVersionType: sys.getwindowsversion()
* bpo-45189: Drop the "list_frozen" command from _test_embed. (GH-30273)Dong-hee Na2021-12-281-22/+0
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* bpo-45954: Rename PyConfig.no_debug_ranges to code_debug_ranges (GH-29886)Victor Stinner2021-12-021-1/+1
| | | | | | | Rename PyConfig.no_debug_ranges to PyConfig.code_debug_ranges and invert the value. Document -X no_debug_ranges and PYTHONNODEBUGRANGES env var in PyConfig.code_debug_ranges documentation.
* bpo-45666: Use `%S` for MSVC and `%s` elsewhere for `swprintf` in ↵Nikita Sobolev2021-11-011-1/+7
| | | | | `_testembed.c` (GH-29341) Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
* bpo-45666: fixes warning with `swprintf` and `%s` (GH-29307)Nikita Sobolev2021-10-311-1/+1
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* bpo-45395: Make custom frozen modules additions instead of replacements. ↵Eric Snow2021-10-281-21/+7
| | | | | | | | | (gh-28778) Currently custom modules (the array set on PyImport_FrozenModules) replace all the frozen stdlib modules. That can be problematic and is unlikely to be what the user wants. This change treats the custom frozen modules as additions instead. They take precedence over all other frozen modules except for those needed to bootstrap the import system. If the "code" field of an entry in the custom array is NULL then that frozen module is treated as disabled, which allows a custom entry to disable a frozen stdlib module. This change allows us to get rid of is_essential_frozen_module() and simplifies the logic for which frozen modules should be ignored. https://bugs.python.org/issue45395
* bpo-45020: Add tests for the -X "frozen_modules" option. (gh-28997)Eric Snow2021-10-251-0/+39
| | | | | We hadn't explicitly added any tests for this, so here they are. https://bugs.python.org/issue45020
* bpo-45434: pyport.h no longer includes <stdlib.h> (GH-28914)Victor Stinner2021-10-131-0/+1
| | | | | Include <stdlib.h> explicitly in C files. Python.h includes <wchar.h>.
* bpo-45445: Fail if an invalid X-option is provided in the command line ↵Pablo Galindo Salgado2021-10-131-10/+8
| | | | (GH-28823)
* bpo-40413: test_embed tests calling Py_RunMain() multiple times (GH-28466)Victor Stinner2021-09-201-4/+16
| | | | | | Calling Py_InitializeFromConfig()+Py_RunMain() multiple times must not crash. Cleanup also test_get_argc_argv().
* bpo-43950: Add option to opt-out of PEP-657 (GH-27023)Ammar Askar2021-07-071-0/+4
| | | | | Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com> Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
* bpo-44434: Remove useless calls to PyThread_exit_thread() (GH-26943)Victor Stinner2021-06-291-2/+0
| | | | | | Remove useless calls to PyThread_exit_thread() in two unit tests of _testcapi and _testembed modules. Co-authored-by: Alexey Izbyshev <izbyshev@ispras.ru>
* bpo-44441: _PyImport_Fini2() resets PyImport_Inittab (GH-26874)Victor Stinner2021-06-231-3/+55
| | | | | Py_RunMain() now resets PyImport_Inittab to its initial value at exit. It must be possible to call PyImport_AppendInittab() or PyImport_ExtendInittab() at each Python initialization.
* bpo-44131: Test Py_FrozenMain() (GH-26126)Victor Stinner2021-05-171-9/+63
| | | | | | | | | * Add test_frozenmain to test_embed * Add Programs/test_frozenmain.py * Add Programs/freeze_test_frozenmain.py * Add Programs/test_frozenmain.h * Add make regen-test-frozenmain * Add test_frozenmain command to Programs/_testembed * _testembed.c: add error(msg) function
* bpo-44113: Deprecate old functions to config Python init (GH-26060)Victor Stinner2021-05-121-0/+5
| | | | | | | | | | | | | | | | | Deprecate the following functions to configure the Python initialization: * PySys_AddWarnOption() * PySys_AddWarnOptionUnicode() * PySys_AddXOption() * PySys_HasWarnOptions() * Py_SetPath() * Py_SetProgramName() * Py_SetPythonHome() * Py_SetStandardStreamEncoding() * _Py_SetProgramFullPath() Use the new PyConfig API of the Python Initialization Configuration instead (PEP 587).
* bpo-43445: Add frozen modules to sys.stdlib_module_names (GH-24798)Victor Stinner2021-03-101-0/+16
| | | | | | Add frozen modules to sys.stdlib_module_names. For example, add "_frozen_importlib" and "_frozen_importlib_external" names. Add "list_frozen" command to Programs/_testembed.
* bpo-42882: Add test_embed.test_unicode_id_init() (GH-24198)Victor Stinner2021-01-121-0/+38
| | | | Test that _PyUnicode_FromId() works when Python is initialized multiples times.
* bpo-42260: Compute the path config in the main init (GH-23211)Victor Stinner2020-11-101-2/+2
| | | | | | | | | | | | | | | | | | | | | The path configuration is now computed in the "main" initialization. The core initialization no longer computes it. * Add _PyConfig_Read() function to read the configuration without computing the path configuration. * pyinit_core() no longer computes the path configuration: it is now computed by init_interp_main(). * The path configuration output members of PyConfig are now optional: * executable * base_executable * prefix * base_prefix * exec_prefix * base_exec_prefix * _PySys_UpdateConfig() now skips NULL strings in PyConfig. * _testembed: Rename test_set_config() to test_init_set_config() for consistency with other tests.
* bpo-42260: Add _PyInterpreterState_SetConfig() (GH-23158)Victor Stinner2020-11-041-0/+50
| | | | | | | | * Inline _PyInterpreterState_SetConfig(): replace it with _PyConfig_Copy(). * Add _PyErr_SetFromPyStatus() * Add _PyInterpreterState_GetConfigCopy() * Add a new _PyInterpreterState_SetConfig() function. * Add an unit which gets, modifies, and sets the config.
* bpo-41162: Clear audit hooks later during finalization (GH-21222)Konge2020-07-031-0/+8
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* bpo-40939: Remove some extra references to PYTHONOLDPARSER (GH-20815)Pablo Galindo2020-06-111-3/+0
| | | Automerge-Triggered-By: @pablogsal
* bpo-40939: Remove the old parser (GH-20768)Pablo Galindo2020-06-111-1/+0
| | | This commit removes the old parser, the deprecated parser module, the old parser compatibility flags and environment variables and all associated support code and documentation.
* bpo-40910: Export Py_GetArgcArgv() function (GH-20721)Victor Stinner2020-06-081-0/+42
| | | | | | | | | | | | Export explicitly the Py_GetArgcArgv() function to the C API and document the function. Previously, it was exported implicitly which no longer works since Python is built with -fvisibility=hidden. * Add PyConfig._orig_argv member. * Py_InitializeFromConfig() no longer calls _PyConfig_Write() twice. * PyConfig_Read() no longer initializes Py_GetArgcArgv(): it is now _PyConfig_Write() responsibility. * _PyConfig_Write() result type becomes PyStatus instead of void. * Write an unit test on Py_GetArgcArgv().
* bpo-40854: Allow overriding sys.platlibdir via PYTHONPLATLIBDIR env-var ↵Sandro Mani2020-06-081-0/+8
| | | | (GH-20605)
* bpo-40453: Add PyConfig._isolated_subinterpreter (GH-19820)Victor Stinner2020-05-011-0/+2
| | | | | | | | | An isolated subinterpreter cannot spawn threads, spawn a child process or call os.fork(). * Add private _Py_NewInterpreter(isolated_subinterpreter) function. * Add isolated=True keyword-only parameter to _xxsubinterpreters.create(). * Allow again os.fork() in "non-isolated" subinterpreters.
* bpo-40334: Rename PyConfig.use_peg to _use_peg_parser (GH-19670)Victor Stinner2020-04-231-2/+3
| | | | | | | | | | | * Rename PyConfig.use_peg to _use_peg_parser * Document PyConfig._use_peg_parser and mark it a deprecated * Mark -X oldparser option and PYTHONOLDPARSER env var as deprecated in the documentation. * Add use_old_parser() and skip_if_new_parser() to test.support * Remove sys.flags.use_peg: use_old_parser() uses _testinternalcapi.get_configs() instead. * Enhance test_embed tests * subprocess._args_from_interpreter_flags() copies -X oldparser
* bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)Pablo Galindo2020-04-221-0/+3
| | | | Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
* bpo-40268: Remove explicit pythread.h includes (#19529)Victor Stinner2020-04-151-1/+0
| | | | Remove explicit pythread.h includes: it is always included by Python.h.
* bpo-40268: Remove a few pycore_pystate.h includes (GH-19510)Victor Stinner2020-04-141-2/+2
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* bpo-39877: Remove useless PyEval_InitThreads() calls (GH-18883)Victor Stinner2020-03-091-4/+2
| | | | Py_Initialize() calls PyEval_InitThreads() since Python 3.7. It's no longer needed to call it explicitly.
* bpo-39489: Remove COUNT_ALLOCS special build (GH-18259)Victor Stinner2020-02-031-1/+0
| | | | | | | | | | | Remove: * COUNT_ALLOCS macro * sys.getcounts() function * SHOW_ALLOC_COUNT code in listobject.c * SHOW_TRACK_COUNT code in tupleobject.c * PyConfig.show_alloc_count field * -X showalloccount command line option * @test.support.requires_type_collecting decorator
* bpo-38304: PyConfig_InitPythonConfig() cannot fail anymore (GH-16509)Victor Stinner2019-10-011-118/+26
| | | | PyConfig_InitPythonConfig() and PyConfig_InitIsolatedConfig() no longer return PyStatus: they cannot fail anymore.
* bpo-38304: Remove PyConfig.struct_size (GH-16500) (GH-16508)Victor Stinner2019-10-011-92/+17
| | | | | | | For now, we'll rely on the fact that the config structures aren't covered by the stable ABI. We may revisit this in the future if we further explore the idea of offering a stable embedding API. (cherry picked from commit bdace21b769998396d0ccc8da99a8ca9b507bfdf)
* bpo-38317: Fix PyConfig.warnoptions priority (GH-16478)Victor Stinner2019-09-291-0/+59
| | | | | | | | | Fix warnings options priority: PyConfig.warnoptions has the highest priority, as stated in the PEP 587. * Document options order in PyConfig.warnoptions documentation. * Make PyWideStringList_INIT macro private: replace "Py" prefix with "_Py". * test_embed: add test_init_warnoptions().
* bpo-38304: Add PyConfig.struct_size (GH-16451)Victor Stinner2019-09-281-13/+108
| | | | | | | | | | | | | | | | | Add a new struct_size field to PyPreConfig and PyConfig structures to allow to modify these structures in the future without breaking the backward compatibility. * Replace private _config_version field with public struct_size field in PyPreConfig and PyConfig. * Public PyPreConfig_InitIsolatedConfig() and PyPreConfig_InitPythonConfig() return type becomes PyStatus, instead of void. * Internal _PyConfig_InitCompatConfig(), _PyPreConfig_InitCompatConfig(), _PyPreConfig_InitFromConfig(), _PyPreConfig_InitFromPreConfig() return type becomes PyStatus, instead of void. * Remove _Py_CONFIG_VERSION * Update the Initialization Configuration documentation.
* bpo-38234: Fix test_embed.test_init_setpath_config() on FreeBSD (GH-16406)Victor Stinner2019-09-261-1/+11
| | | | | | | | | Explicitly preinitializes with a Python preconfiguration to avoid Py_SetPath() implicit preinitialization with a compat preconfiguration. Fix also test_init_setpath() and test_init_setpythonhome() on macOS: use self.test_exe as the executable (and base_executable), rather than shutil.which('python3').
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