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* Remove more remnants of deepfreeze (#118159)Guido van Rossum2024-04-221-2/+0
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* gh-76785: Add PyInterpreterConfig Helpers (gh-117170)Eric Snow2024-04-021-0/+16
| | | These helpers make it easier to customize and inspect the config used to initialize interpreters. This is especially valuable in our tests. I found inspiration from the PyConfig API for the PyInterpreterConfig dict conversion stuff. As part of this PR I've also added a bunch of tests.
* gh-112723: Call `PyThreadState_Clear()` from the correct interpreter (#112776)Sam Gross2023-12-131-1/+1
| | | | | | | | | | | | | The `PyThreadState_Clear()` function must only be called with the GIL held and must be called from the same interpreter as the passed in thread state. Otherwise, any Python objects on the thread state may be destroyed using the wrong interpreter, leading to memory corruption. This is also important for `Py_GIL_DISABLED` builds because free lists will be associated with PyThreadStates and cleared in `PyThreadState_Clear()`. This fixes two places that called `PyThreadState_Clear()` from the wrong interpreter and adds an assertion to `PyThreadState_Clear()`.
* gh-112567: Add _Py_GetTicksPerSecond() function (#112587)Victor Stinner2023-12-011-1/+0
| | | | | | | | | | * Move _PyRuntimeState.time to _posixstate.ticks_per_second and time_module_state.ticks_per_second. * Add time_module_state.clocks_per_second. * Rename _PyTime_GetClockWithInfo() to py_clock(). * Rename _PyTime_GetProcessTimeWithInfo() to py_process_time(). * Add process_time_times() helper function, called by py_process_time(). * os.times() is now always built: no longer rely on HAVE_TIMES.
* gh-67224: Show source lines in tracebacks when using the -c option when ↵Pablo Galindo Salgado2023-10-261-0/+3
| | | | running Python (#111200)
* gh-107211: No longer export internal functions (7) (#108425)Victor Stinner2023-08-241-0/+4
| | | | | | | | | No longer export _PyUnicode_FromId() internal C API function. Change comment style to "// comment" and add comment explaining why other functions have to be exported. Update Tools/build/generate_token.py to update Include/internal/pycore_token.h comments.
* gh-108014: Add Py_IsFinalizing() function (#108032)Victor Stinner2023-08-181-1/+0
| | | Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* gh-107211: No longer export internal functions (4) (#107217)Victor Stinner2023-07-251-0/+1
| | | | | | | | | No longer export these 2 internal C API functions: * _PyEval_SignalAsyncExc() * _PyEval_SignalReceived() Add also comments explaining why some internal functions have to be exported, and update existing comments.
* gh-106320: Remove private pylifecycle.h functions (#106400)Victor Stinner2023-07-041-11/+30
| | | | | | | Remove private pylifecycle.h functions: move them to the internal C API ( pycore_atexit.h, pycore_pylifecycle.h and pycore_signal.h). No longer export most of these functions. Move _testcapi.test_atexit() to _testinternalcapi.
* gh-105145: Remove old functions to config Python init (#105154)Victor Stinner2023-06-011-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the following old functions to configure the Python initialization, deprecated in Python 3.11: * PySys_AddWarnOptionUnicode() * PySys_AddWarnOption() * PySys_AddXOption() * PySys_HasWarnOptions() * PySys_SetArgvEx() * PySys_SetArgv() * PySys_SetPath() * Py_SetPath() * Py_SetProgramName() * Py_SetPythonHome() * Py_SetStandardStreamEncoding() * _Py_SetProgramFullPath() Most of these functions are kept in the stable ABI, except: * Py_SetStandardStreamEncoding() * _Py_SetProgramFullPath() Update Doc/extending/embedding.rst and Doc/extending/extending.rst to use the new PyConfig API. _testembed.c: * check_stdio_details() now sets stdio_encoding and stdio_errors of PyConfig. * Add definitions of functions removed from the API but kept in the stable ABI. * test_init_from_config() and test_init_read_set() now use PyConfig_SetString() instead of PyConfig_SetBytesString(). Remove _Py_ClearStandardStreamEncoding() internal function.
* GH-101520: Move tracemalloc functionality into core, leaving interface in ↵Mark Shannon2023-05-171-1/+0
| | | | Modules. (#104508)
* gh-94673: Properly Initialize and Finalize Static Builtin Types for Each ↵Eric Snow2023-05-021-1/+1
| | | | | Interpreter (gh-104072) Until now, we haven't been initializing nor finalizing the per-interpreter state properly.
* gh-101659: Isolate "obmalloc" State to Each Interpreter (gh-101660)Eric Snow2023-04-241-0/+1
| | | | | | | | | | | | | | This is strictly about moving the "obmalloc" runtime state from `_PyRuntimeState` to `PyInterpreterState`. Doing so improves isolation between interpreters, specifically most of the memory (incl. objects) allocated for each interpreter's use. This is important for a per-interpreter GIL, but such isolation is valuable even without it. FWIW, a per-interpreter obmalloc is the proverbial canary-in-the-coalmine when it comes to the isolation of objects between interpreters. Any object that leaks (unintentionally) to another interpreter is highly likely to cause a crash (on debug builds at least). That's a useful thing to know, relative to interpreter isolation.
* gh-102755: Add PyErr_DisplayException(exc) (#102756)Irit Katriel2023-03-161-0/+1
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* gh-101758: Clean Up Uses of Import State (gh-101919)Eric Snow2023-02-151-4/+0
| | | | | | | | | | | | | | | This change is almost entirely moving code around and hiding import state behind internal API. We introduce no changes to behavior, nor to non-internal API. (Since there was already going to be a lot of churn, I took this as an opportunity to re-organize import.c into topically-grouped sections of code.) The motivation is to simplify a number of upcoming changes. Specific changes: * move existing import-related code to import.c, wherever possible * add internal API for interacting with import state (both global and per-interpreter) * use only API outside of import.c (to limit churn there when changing the location, etc.) * consolidate the import-related state of PyInterpreterState into a single struct field (this changes layout slightly) * add macros for import state in import.c (to simplify changing the location) * group code in import.c into sections *remove _PyState_AddModule() https://github.com/python/cpython/issues/101758
* gh-59956: Clarify GILState-related Code (gh-101161)Eric Snow2023-01-191-1/+1
| | | | | | | | | | The objective of this change is to help make the GILState-related code easier to understand. This mostly involves moving code around and some semantically equivalent refactors. However, there are a also a small number of slight changes in structure and behavior: * tstate_current is moved out of _PyRuntimeState.gilstate * autoTSSkey is moved out of _PyRuntimeState.gilstate * autoTSSkey is initialized earlier * autoTSSkey is re-initialized (after fork) earlier https://github.com/python/cpython/issues/59956
* gh-81057: Move time Globals to _PyRuntimeState (gh-100122)Eric Snow2022-12-081-0/+1
| | | https://github.com/python/cpython/issues/81057
* gh-81057: Move More Globals in Core Code to _PyRuntimeState (gh-99516)Eric Snow2022-11-161-4/+0
| | | https://github.com/python/cpython/issues/81057
* gh-81057: Move Globals in Core Code to _PyRuntimeState (gh-99496)Eric Snow2022-11-151-0/+1
| | | | | This is the first of several changes to consolidate non-object globals in core code. https://github.com/python/cpython/issues/81057
* gh-81057: Move PyImport_Inittab to _PyRuntimeState (gh-99402)Eric Snow2022-11-121-0/+1
| | | | | We actually don't move PyImport_Inittab. Instead, we make a copy that we keep on _PyRuntimeState and use only that after Py_Initialize(). We also prevent folks from modifying PyImport_Inittab (the best we can) after that point. https://github.com/python/cpython/issues/81057
* gh-64783: Fix signal.NSIG value on FreeBSD (#91929)Victor Stinner2022-04-251-16/+0
| | | | | | | | | Fix signal.NSIG value on FreeBSD to accept signal numbers greater than 32, like signal.SIGRTMIN and signal.SIGRTMAX. * Add Py_NSIG constant. * Add pycore_signal.h internal header file. * _Py_Sigset_Converter() now includes the range of valid signals in the error message.
* Propagate errors (however unlikely) from _Py_Deepfreeze_Init() (GH-31596)Kumar Aditya2022-02-261-1/+1
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* bpo-45316: Move _PyArg_Fini() to internal C API (GH-31580)Victor Stinner2022-02-251-0/+1
| | | | Move the private unexported _PyArg_Fini() function to the internal C API: to the pycore_pylifecycle.h header file.
* bpo-46430: Fix memory leak in interned strings of deep-frozen modules (GH-31549)Kumar Aditya2022-02-241-1/+1
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* bpo-46476: Fix memory leak in code objects generated by deepfreeze (GH-30853)Kumar Aditya2022-01-271-0/+1
| | | Add _Py_Deepfreeze_Fini() and _PyStaticCode_Dealloc() functions.
* bpo-46417: Factorize _PyExc_InitTypes() code (GH-30804)Victor Stinner2022-01-221-1/+1
| | | | | | | | Add 'static_exceptions' list to factorize code between _PyExc_InitTypes() and _PyBuiltins_AddExceptions(). _PyExc_InitTypes() does nothing if it's not the main interpreter. Sort exceptions in Lib/test/exception_hierarchy.txt.
* bpo-46417: Finalize structseq types at exit (GH-30645)Victor Stinner2022-01-211-0/+2
| | | | | | | | | | | | | | | | | | 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-46008: Make runtime-global object/type lifecycle functions and state ↵Eric Snow2021-12-091-28/+0
| | | | | | | | | | | | consistent. (gh-29998) This change is strictly renames and moving code around. It helps in the following ways: * ensures type-related init functions focus strictly on one of the three aspects (state, objects, types) * passes in PyInterpreterState * to all those functions, simplifying work on moving types/objects/state to the interpreter * consistent naming conventions help make what's going on more clear * keeping API related to a type in the corresponding header file makes it more obvious where to look for it https://bugs.python.org/issue46008
* Store actual ints, not pointers to them in the interpreter state. (GH-29274)Mark Shannon2021-10-281-1/+1
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* bpo-45292: [PEP 654] add the ExceptionGroup and BaseExceptionGroup classes ↵Irit Katriel2021-10-221-0/+1
| | | | (GH-28569)
* bpo-45211: Remember the stdlib dir during startup. (gh-28586)Eric Snow2021-09-281-0/+1
| | | | | During runtime startup we figure out the stdlib dir but currently throw that information away. This change preserves it and exposes it via PyConfig.stdlib_dir, _Py_GetStdlibDir(), and sys._stdlib_dir. https://bugs.python.org/issue45211
* bpo-43687: Py_Initialize() creates singletons earlier (GH-25147)Victor Stinner2021-04-021-2/+5
| | | | | Reorganize pycore_interp_init() to initialize singletons before the the first PyType_Ready() call. Fix an issue when Python is configured using --without-doc-strings.
* bpo-43356: Allow passing a signal number to interrupt_main() (GH-24755)Antoine Pitrou2021-03-111-0/+16
| | | | Also introduce a new C API ``PyErr_SetInterruptEx(int signum)``.
* bpo-43311: Create GIL autoTSSkey ealier (GH-24819)Victor Stinner2021-03-101-1/+4
| | | | | | At Python startup, call _PyGILState_Init() before PyInterpreterState_New() which calls _PyThreadState_GET(). When Python is built using --with-experimental-isolated-subinterpreters, _PyThreadState_GET() uses autoTSSkey.
* bpo-43268: Pass interp rather than tstate to internal functions (GH-24580)Victor Stinner2021-02-191-25/+25
| | | | | | | | | | | | | | | Pass the current interpreter (interp) rather than the current Python thread state (tstate) to internal functions which only use the interpreter. Modified functions: * _PyXXX_Fini() and _PyXXX_ClearFreeList() functions * _PyEval_SignalAsyncExc(), make_pending_calls() * _PySys_GetObject(), sys_set_object(), sys_set_object_id(), sys_set_object_str() * should_audit(), set_flags_from_config(), make_flags() * _PyAtExit_Call() * init_stdio_encoding() * etc.
* bpo-42745: Make the type cache per-interpreter (GH-23947)Victor Stinner2020-12-261-1/+1
| | | | | | | | | | | Make the type attribute lookup cache per-interpreter. Add private _PyType_InitCache() function, called by PyInterpreterState_New(). Continue to share next_version_tag between interpreters, since static types are still shared by interpreters. Remove MCACHE macro: the cache is no longer disabled if the EXPERIMENTAL_ISOLATED_SUBINTERPRETERS macro is defined.
* bpo-42639: Move atexit state to PyInterpreterState (GH-23763)Victor Stinner2020-12-151-1/+3
| | | | | | | | | * Add _PyAtExit_Call() function and remove pyexitfunc and pyexitmodule members of PyInterpreterState. The function logs atexit callback errors using _PyErr_WriteUnraisableMsg(). * Add _PyAtExit_Init() and _PyAtExit_Fini() functions. * Remove traverse, clear and free functions of the atexit module. Co-authored-by: Dong-hee Na <donghee.na@python.org>
* bpo-42639: atexit now logs callbacks exceptions (GH-23771)Victor Stinner2020-12-141-0/+2
| | | | | | | | | | | At Python exit, if a callback registered with atexit.register() fails, its exception is now logged. Previously, only some exceptions were logged, and the last exception was always silently ignored. Add _PyAtExit_Call() function and remove PyInterpreterState.atexit_func member. call_py_exitfuncs() now calls directly _PyAtExit_Call(). The atexit module must now always be built as a built-in module.
* bpo-41713: Remove PyOS_InitInterrupts() function (GH-23342)Victor Stinner2020-11-171-1/+2
| | | | | | | Remove the undocumented PyOS_InitInterrupts() C function. * Rename PyOS_InitInterrupts() to _PySignal_Init(). It now installs other signal handlers, not only SIGINT. * Rename PyOS_FiniInterrupts() to _PySignal_Fini()
* bpo-42260: Initialize time and warnings earlier at startup (GH-23249)Victor Stinner2020-11-121-1/+0
| | | | | | | | | | * Call _PyTime_Init() and _PyWarnings_InitState() earlier during the Python initialization. * Inline _PyImportHooks_Init() into _PySys_InitCore(). * The _warnings initialization function no longer call _PyWarnings_InitState() to prevent resetting filters_version to 0. * _PyWarnings_InitState() now returns an int and no longer clear the state in case of error (it's done anyway at Python exit). * Rework init_importlib(), fix refleaks on errors.
* bpo-42260: Main init modify sys.flags in-place (GH-23150)Victor Stinner2020-11-041-1/+1
| | | | | | | | | | | When Py_Initialize() is called twice, the second call now updates more sys attributes for the configuration, rather than only sys.argv. * Rename _PySys_InitMain() to _PySys_UpdateConfig(). * _PySys_UpdateConfig() now modifies sys.flags in-place, instead of creating a new flags object. * Remove old commented sys.flags flags (unbuffered and skip_first). * Add private _PySys_GetObject() function. * When Py_Initialize(), Py_InitializeFromConfig() and
* bpo-41796: Call _PyAST_Fini() earlier to fix a leak (GH-23131)Victor Stinner2020-11-031-1/+1
| | | | | | | | | | | | | | | Call _PyAST_Fini() on all interpreters, not only on the main interpreter. Also, call it ealier to fix a reference leak. Python types contain a reference to themselves in in their PyTypeObject.tp_mro member. _PyAST_Fini() must called before the last GC collection to destroy AST types. _PyInterpreterState_Clear() now calls _PyAST_Fini(). It now also calls _PyWarnings_Fini() on subinterpeters, not only on the main interpreter. Add an assertion in AST init_types() to ensure that the _ast module is no longer used after _PyAST_Fini() has been called.
* bpo-41631: _ast module uses again a global state (#21961)Victor Stinner2020-09-151-0/+1
| | | | | | | | | | | | | | | | | Partially revert commit ac46eb4ad6662cf6d771b20d8963658b2186c48c: "bpo-38113: Update the Python-ast.c generator to PEP384 (gh-15957)". Using a module state per module instance is causing subtle practical problems. For example, the Mercurial project replaces the __import__() function to implement lazy import, whereas Python expected that "import _ast" always return a fully initialized _ast module. Add _PyAST_Fini() to clear the state at exit. The _ast module has no state (set _astmodule.m_size to 0). Remove astmodule_traverse(), astmodule_clear() and astmodule_free() functions.
* bpo-1635741: Release Unicode interned strings at exit (GH-21269)Victor Stinner2020-07-011-0/+1
| | | | | | | * PyUnicode_InternInPlace() now ensures that interned strings are ready. * Add _PyUnicode_ClearInterned(). * Py_Finalize() now releases Unicode interned strings: call _PyUnicode_ClearInterned().
* bpo-40521: Optimize PyBytes_FromStringAndSize(str, 0) (GH-21142)Victor Stinner2020-06-251-0/+1
| | | | | | | | | | | | | | | | Always create the empty bytes string singleton. Optimize PyBytes_FromStringAndSize(str, 0): it no longer has to check if the empty string singleton was created or not, it is always available. Add functions: * _PyBytes_Init() * bytes_get_empty(), bytes_new_empty() * bytes_create_empty_string_singleton() * unicode_create_empty_string_singleton() _Py_unicode_state: rename empty structure member to empty_string.
* bpo-40521: Always create the empty tuple singleton (GH-21116)Victor Stinner2020-06-241-0/+1
| | | | | | | | | | | Py_InitializeFromConfig() now always creates the empty tuple singleton as soon as possible. Optimize PyTuple_New(0): it no longer has to check if the empty tuple was created or not, it is always creatd. * Add tuple_create_empty_tuple_singleton() function. * Add tuple_get_empty() function. * Remove state parameter of tuple_alloc().
* bpo-40521: Make empty Unicode string per interpreter (GH-21096)Victor Stinner2020-06-231-1/+1
| | | Each interpreter now has its own empty Unicode string singleton.
* bpo-40521: Make MemoryError free list per interpreter (GH-21086)Victor Stinner2020-06-231-2/+2
| | | | | | | Each interpreter now has its own MemoryError free list: it is not longer shared by all interpreters. Add _Py_exc_state structure and PyInterpreterState.exc_state member. Move also errnomap into _Py_exc_state.
* bpo-40521: Empty frozenset is no longer a singleton (GH-21085)Raymond Hettinger2020-06-231-1/+0
| | | | | | | | | * Revert "bpo-40521: Make the empty frozenset per interpreter (GH-21068)" This reverts commit 261cfedf7657a515e04428bba58eba2a9bb88208. * bpo-40521: Empty frozensets are no longer singletons * Complete the removal of the frozenset singleton
* bpo-40521: Make bytes singletons per interpreter (GH-21074)Victor Stinner2020-06-231-1/+1
| | | | | | Each interpreter now has its own empty bytes string and single byte character singletons. Replace STRINGLIB_EMPTY macro with STRINGLIB_GET_EMPTY() macro.
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