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* gh-84461: Add sys._emscripten_info, improve docs and build (gh-91781)Christian Heimes2022-04-231-0/+118
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* bpo-35134: Remove the Include/code.h header file (GH-32385)Victor Stinner2022-04-071-1/+0
| | | | | | Remove the Include/code.h header file. C extensions should only include the main <Python.h> header file. Python.h includes directly Include/cpython/code.h instead.
* bpo-47000: Make `io.text_encoding()` respects UTF-8 mode (GH-32003)Inada Naoki2022-04-041-1/+4
| | | Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
* bpo-47164: Add _PyCFunction_CAST() macro (GH-32192)Victor Stinner2022-03-311-9/+9
| | | Use the macro in C files of the Python/ directory.
* bpo-42197: Don't create `f_locals` dictionary unless we actually need it. ↵Mark Shannon2022-03-251-3/+7
| | | | | | | | | | | (GH-32055) * `PyFrame_FastToLocalsWithError` and `PyFrame_LocalsToFast` are no longer called during profile and tracing. (Contributed by Fabio Zadrozny) * Make accesses to a frame's `f_locals` safe from C code, not relying on calls to `PyFrame_FastToLocals` or `PyFrame_LocalsToFast`. * Document new `PyFrame_GetLocals` C-API function.
* bpo-46850: Remove _PyEval_GetCoroutineOriginTrackingDepth() (GH-32018)Victor Stinner2022-03-211-4/+1
| | | | | | | | | | | | | | | Remove the private undocumented function _PyEval_GetCoroutineOriginTrackingDepth() from the C API. Call the public sys.get_coroutine_origin_tracking_depth() function instead. Change the internal function _PyEval_SetCoroutineOriginTrackingDepth(): * Remove the 'tstate' parameter; * Add return value and raises an exception if depth is negative; * No longer export the function: call the public sys.set_coroutine_origin_tracking_depth() function instead. Uniformize also function declarations in pycore_ceval.h.
* bpo-46850: Remove _PyEval_SetAsyncGenFinalizer() (GH-32017)Victor Stinner2022-03-211-1/+1
| | | | | | | | | | | Remove the following private undocumented functions from the C API: * _PyEval_GetAsyncGenFirstiter() * _PyEval_GetAsyncGenFinalizer() * _PyEval_SetAsyncGenFirstiter() * _PyEval_SetAsyncGenFinalizer() Call the public sys.get_asyncgen_hooks() and sys.set_asyncgen_hooks() functions instead.
* bpo-46987: Remove _PySys_GetObjectId / _PySys_GetObjectId (GH-31835)Dong-hee Na2022-03-141-36/+0
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* bpo-46836: Rename InterpreterFrame to _PyInterpreterFrame (GH-31583)Victor Stinner2022-02-251-2/+2
| | | | | Rename also struct _interpreter_frame to struct _PyInterpreterFrame. Reduce risk of name conflicts if a project includes pycore_frame.h.
* bpo-45412: Add _PY_SHORT_FLOAT_REPR macro (GH-31171)Victor Stinner2022-02-231-1/+2
| | | | | | | | | | Remove the HAVE_PY_SET_53BIT_PRECISION macro (moved to the internal C API). * Move HAVE_PY_SET_53BIT_PRECISION macro to pycore_pymath.h. * Replace PY_NO_SHORT_FLOAT_REPR macro with _PY_SHORT_FLOAT_REPR macro which is always defined. gcc -Wundef emits a warning when using _PY_SHORT_FLOAT_REPR but the macro is not defined, if pycore_pymath.h include was forgotten.
* bpo-46765: Replace Locally Cached Strings with Statically Initialized ↵Eric Snow2022-02-231-38/+13
| | | | | Objects (gh-31366) https://bugs.python.org/issue46765
* bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized ↵Eric Snow2022-02-081-39/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-46072: Merge dxpairs into py_stats. (GH-31197)Mark Shannon2022-02-071-2/+2
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* bpo-46417: _curses uses PyStructSequence_NewType() (GH-30736)Victor Stinner2022-01-211-1/+1
| | | | | | | | The _curses module now creates its ncurses_version type as a heap type using PyStructSequence_NewType(), rather than using a static type. * Move _PyStructSequence_FiniType() definition to pycore_structseq.h. * test.pythoninfo: log curses.ncurses_version.
* bpo-46417: Finalize structseq types at exit (GH-30645)Victor Stinner2022-01-211-0/+15
| | | | | | | | | | | | | | | | | | 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-46328: Add sys.exception() (GH-30514)Irit Katriel2022-01-131-1/+25
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* bpo-45582: Fix test_embed failure during a PGO build on Windows (GH-30014)neonene2021-12-101-0/+2
| | | This defines VPATH differently in PGO instrumentation builds, to account for a different default output directory. It also adds sys._vpath on Windows to make the value available to sysconfig so that it can be used in tests.
* bpo-45947: Place dict and values pointer at fixed (negative) offset just ↵Mark Shannon2021-12-071-4/+1
| | | | | | | | | | | | | | | | | | | before GC header. (GH-29879) * Place __dict__ immediately before GC header for plain Python objects. * Fix up lazy dict creation logic to use managed dict pointers. * Manage values pointer, placing them directly before managed dict pointers. * Convert hint-based load/store attr specialization target managed dict classes. * Specialize LOAD_METHOD for managed dict objects. * Remove unsafe _PyObject_GC_Calloc function. * Remove unsafe _PyObject_GC_Malloc() function. * Add comment explaning use of Py_TPFLAGS_MANAGED_DICT.
* bpo-45711: use exc_value instead of exc_type to determine if exc_info is ↵Irit Katriel2021-11-251-6/+1
| | | | valid. Add more assertions. (GH-29627)
* bpo-45753: Make recursion checks more efficient. (GH-29524)Mark Shannon2021-11-161-11/+5
| | | | * Uses recursion remaining, instead of recursion depth to speed up check against recursion limit.
* bpo-45637: Store the frame pointer in the cframe (GH-29267)Mark Shannon2021-10-281-1/+1
| | | * Rename 'frame' to 'current_frame'
* bpo-43760: Add PyThreadState_EnterTracing() (GH-28542)Victor Stinner2021-10-151-8/+4
| | | | | | | | | | Add PyThreadState_EnterTracing() and PyThreadState_LeaveTracing() functions to the limited C API to suspend and resume tracing and profiling. Add an unit test on the PyThreadState C API to _testcapi. Add also internal _PyThreadState_DisableTracing() and _PyThreadState_ResetTracing().
* bpo-45482: Rename namespaceobject.h to pycore_namespace.h (GH-28975)Victor Stinner2021-10-151-0/+1
| | | | | | | | | Rename Include/namespaceobject.h to Include/internal/pycore_namespace.h. The _testmultiphase extension is now built with the Py_BUILD_CORE_MODULE macro defined to access _PyNamespace_Type. object.c: remove unused "pycore_context.h" include.
* bpo-45439: Move _PyObject_CallNoArgs() to pycore_call.h (GH-28895)Victor Stinner2021-10-121-3/+4
| | | | | | | * Move _PyObject_CallNoArgs() to pycore_call.h (internal C API). * _ssl, _sqlite and _testcapi extensions now call the public PyObject_CallNoArgs() function, rather than _PyObject_CallNoArgs(). * _lsprof extension is now built with Py_BUILD_CORE_MODULE macro defined to get access to internal _PyObject_CallNoArgs().
* bpo-45439: Rename _PyObject_CallNoArg() to _PyObject_CallNoArgs() (GH-28891)Victor Stinner2021-10-111-1/+1
| | | | | Fix typo in the private _PyObject_CallNoArg() function name: rename it to _PyObject_CallNoArgs() to be consistent with the public function PyObject_CallNoArgs().
* bpo-43760: Check for tracing using 'bitwise or' instead of branch in ↵Mark Shannon2021-10-051-2/+2
| | | | dispatch. (GH-28723)
* bpo-45211: Remember the stdlib dir during startup. (gh-28586)Eric Snow2021-09-281-0/+8
| | | | | 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-44590: Lazily allocate frame objects (GH-27077)Mark Shannon2021-07-261-9/+7
| | | | | | | | | | | | | | * Convert "specials" array to InterpreterFrame struct, adding f_lasti, f_state and other non-debug FrameObject fields to it. * Refactor, calls pushing the call to the interpreter upward toward _PyEval_Vector. * Compute f_back when on thread stack, only filling in value when frame object outlives stack invocation. * Move ownership of InterpreterFrame in generator from frame object to generator object. * Do not create frame objects for Python calls. * Do not create frame objects for generators.
* Remove sys._deactivate_opcache() now that is not needed (GH-27154)Pablo Galindo Salgado2021-07-151-17/+0
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* bpo-44187: Quickening infrastructure (GH-26264)Mark Shannon2021-06-071-0/+14
| | | | | | | | | | | | | | * Add co_firstinstr field to code object. * Implement barebones quickening. * Use non-quickened bytecode when tracing. * Add NEWS item * Add new file to Windows build. * Don't specialize instructions with EXTENDED_ARG.
* bpo-44113: Fix compiler warning in PySys_AddWarnOption() (GH-26084)Victor Stinner2021-05-131-0/+3
| | | Ignore Py_DEPRECATED() warning on purpose.
* bpo-43916: Move the _PyStructSequence_InitType function to the internal API ↵Pablo Galindo2021-05-031-0/+1
| | | | (GH-25854)
* bpo-43916: PyStdPrinter_Type uses Py_TPFLAGS_DISALLOW_INSTANTIATION (GH-25749)Victor Stinner2021-04-301-1/+1
| | | | | | | The PyStdPrinter_Type type now uses the Py_TPFLAGS_DISALLOW_INSTANTIATION flag to disallow instantiation, rather than seting a tp_init method which always fail. Write also unit tests for PyStdPrinter_Type.
* bpo-43916: Add Py_TPFLAGS_DISALLOW_INSTANTIATION type flag (GH-25721)Victor Stinner2021-04-301-30/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new Py_TPFLAGS_DISALLOW_INSTANTIATION type flag to disallow creating type instances: set tp_new to NULL and don't create the "__new__" key in the type dictionary. The flag is set automatically on static types if tp_base is NULL or &PyBaseObject_Type and tp_new is NULL. Use the flag on the following types: * _curses.ncurses_version type * _curses_panel.panel * _tkinter.Tcl_Obj * _tkinter.tkapp * _tkinter.tktimertoken * _xxsubinterpretersmodule.ChannelID * sys.flags type * sys.getwindowsversion() type * sys.version_info type Update MyStr example in the C API documentation to use Py_TPFLAGS_DISALLOW_INSTANTIATION. Add _PyStructSequence_InitType() function to create a structseq type with the Py_TPFLAGS_DISALLOW_INSTANTIATION flag set. type_new() calls _PyType_CheckConsistency() at exit.
* bpo-43475: Fix worst case collision behavior for NaN instances (GH-25493)Raymond Hettinger2021-04-221-1/+1
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* bpo-43760: Speed up check for tracing in interpreter dispatch (#25276)Mark Shannon2021-04-131-4/+4
| | | | | | | | | * Remove redundant tracing_possible field from interpreter state. * Move 'use_tracing' from tstate onto C stack, for fastest possible checking in dispatch logic. * Add comments stressing the importance stack discipline when dealing with CFrames. * Add NEWS
* bpo-43510: Implement PEP 597 opt-in EncodingWarning. (GH-19481)Inada Naoki2021-03-291-1/+3
| | | | | | | | | | | See [PEP 597](https://www.python.org/dev/peps/pep-0597/). * Add `-X warn_default_encoding` and `PYTHONWARNDEFAULTENCODING`. * Add EncodingWarning * Add io.text_encoding() * open(), TextIOWrapper() emits EncodingWarning when encoding is omitted and warn_default_encoding is enabled. * _pyio.TextIOWrapper() uses UTF-8 as fallback default encoding used when failed to import locale module. (used during building Python) * bz2, configparser, gzip, lzma, pathlib, tempfile modules use io.text_encoding(). * What's new entry
* bpo-37146: Deactivate opcode cache only when using huntrleaks in the test ↵Pablo Galindo2021-02-281-0/+15
| | | | suite (GH-24643)
* bpo-43268: Pass interp rather than tstate to internal functions (GH-24580)Victor Stinner2021-02-191-43/+42
| | | | | | | | | | | | | | | 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-43268: Remove abusive usage of tstate in sysmodule.c (#24581)Victor Stinner2021-02-191-18/+12
| | | | Remove explicit tstate usage in sysmodule.c when it's only used raise exceptions: get it implicitly using PyErr_XXX() functions.
* bpo-42955: Rename module_names to sys.stdlib_module_names (GH-24332)Victor Stinner2021-01-251-5/+5
| | | | * Rename _Py_module_names to _Py_stdlib_module_names. * Rename Python/module_names.h to Python/stdlib_module_names.h.
* bpo-42955: Add sys.modules_names (GH-24238)Victor Stinner2021-01-251-15/+47
| | | | Add sys.module_names, containing the list of the standard library module names.
* Fix typos in sysmodule (GH-23883)Joannah Nanjekye2020-12-221-2/+2
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* bpo-42500: Fix recursion in or after except (GH-23568)Mark Shannon2020-12-021-3/+1
| | | * Use counter, rather boolean state when handling soft overflows.
* bpo-42260: Initialize time and warnings earlier at startup (GH-23249)Victor Stinner2020-11-121-0/+5
| | | | | | | | | | * 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: Compute the path config in the main init (GH-23211)Victor Stinner2020-11-101-8/+14
| | | | | | | | | | | | | | | | | | | | | 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 _PyConfig_FromDict() (GH-23167)Victor Stinner2020-11-051-1/+3
| | | | | | | * Rename config_as_dict() to _PyConfig_AsDict(). * Add 'module_search_paths_set' to _PyConfig_AsDict(). * Add _PyConfig_FromDict(). * Add get_config() and set_config() to _testinternalcapi. * Add config_check_consistency().
* bpo-42260: Main init modify sys.flags in-place (GH-23150)Victor Stinner2020-11-041-46/+67
| | | | | | | | | | | 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-41435: Add sys._current_exceptions() function (GH-21689)Julien Danjou2020-11-021-0/+16
| | | | | | This adds a new function named sys._current_exceptions() which is equivalent ot sys._current_frames() except that it returns the exceptions currently handled by other threads. It is equivalent to calling sys.exc_info() for each running thread.
* bpo-42006: Stop using PyDict_GetItem, PyDict_GetItemString and ↵Serhiy Storchaka2020-10-261-24/+38
| | | | | | | | | | | _PyDict_GetItemId. (GH-22648) These functions are considered not safe because they suppress all internal errors and can return wrong result. PyDict_GetItemString and _PyDict_GetItemId can also silence current exception in rare cases. Remove no longer used _PyDict_GetItemId. Add _PyDict_ContainsId and rename _PyDict_Contains into _PyDict_Contains_KnownHash.
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