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* bpo-43475: Fix worst case collision behavior for NaN instances (GH-25493)Raymond Hettinger2021-04-221-2/+1
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* bpo-40137: Add pycore_moduleobject.h internal header (GH-25507)Victor Stinner2021-04-211-0/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add pycore_moduleobject.h internal header file with static inline functions to access module members: * _PyModule_GetDict() * _PyModule_GetDef() * _PyModule_GetState() These functions don't check at runtime if their argument has a valid type and can be inlined even if Python is not built with LTO. _PyType_GetModuleByDef() uses _PyModule_GetDef(). Replace PyModule_GetState() with _PyModule_GetState() in the extension modules, considered as performance sensitive: * _abc * _functools * _operator * _pickle * _queue * _random * _sre * _struct * _thread * _winapi * array * posix The following extensions are now built with the Py_BUILD_CORE_MODULE macro defined, to be able to use the internal pycore_moduleobject.h header: _abc, array, _operator, _queue, _sre, _struct.
* bpo-43822: Improve syntax errors for missing commas (GH-25377)Pablo Galindo2021-04-151-2/+3
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* bpo-38530: Offer suggestions on NameError (GH-25397)Pablo Galindo2021-04-141-0/+5
| | | | | | | | | | | When printing NameError raised by the interpreter, PyErr_Display will offer suggestions of simmilar variable names in the function that the exception was raised from: >>> schwarzschild_black_hole = None >>> schwarschild_black_hole Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name 'schwarschild_black_hole' is not defined. Did you mean: schwarzschild_black_hole?
* bpo-38530: Offer suggestions on AttributeError (#16856)Pablo Galindo2021-04-142-0/+8
| | | | | | | | | When printing AttributeError, PyErr_Display will offer suggestions of similar attribute names in the object that the exception was raised from: >>> collections.namedtoplo Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: module 'collections' has no attribute 'namedtoplo'. Did you mean: namedtuple?
* bpo-43816: Add extern "C" to Include/cpython/pyctype.h (GH-25365)Andrew V. Jones2021-04-131-0/+6
| | | Signed-off-by: Andrew V. Jones <andrew.jones@vector.com>
* bpo-43760: Speed up check for tracing in interpreter dispatch (#25276)Mark Shannon2021-04-132-7/+21
| | | | | | | | | * 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-43770: Refactor PyType_Ready() function (GH-25336)Victor Stinner2021-04-111-0/+4
| | | | | | * Split PyType_Ready() into sub-functions. * type_ready_mro() now checks if bases are static types earlier. * Check tp_name earlier, in type_ready_checks(). * Add _PyType_IsReady() macro to check if a type is ready.
* bpo-43753: Add Py_Is() and Py_IsNone() functions (GH-25227)Victor Stinner2021-04-102-0/+17
| | | | | | | Add the Py_Is(x, y) function to test if the 'x' object is the 'y' object, the same as "x is y" in Python. Add also the Py_IsNone(), Py_IsTrue(), Py_IsFalse() functions to test if an object is, respectively, the None singleton, the True singleton or the False singleton.
* bpo-43798: Add source location attributes to alias (GH-25324)Matthew Suozzo2021-04-101-1/+7
| | | | | | | * Add source location attributes to alias. * Move alias star construction to pegen helper. Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-43770: _PyTypes_Init() inits _PyAnextAwaitable_Type (GH-25266)Victor Stinner2021-04-081-0/+3
| | | | * Rename PyAnextAwaitable_Type to _PyAnextAwaitable_Type. * Expose the type in the internal C API.
* bpo-43244: Rename pycore_ast.h functions to _PyAST_xxx() (GH-25252)Victor Stinner2021-04-071-230/+171
| | | | | | Rename AST functions of pycore_ast.h to use the "_PyAST_" prefix. Remove macros creating aliases without prefix. For example, Module() becomes _PyAST_Module(). Update Grammar/python.gram to use _PyAST_xxx() functions.
* bpo-43244: Remove Yield macro from pycore_ast.h (GH-25243)Victor Stinner2021-04-071-3/+0
| | | | | | | | * pycore_ast.h no longer defines the Yield macro. * Fix a compiler warning on Windows: "warning C4005: 'Yield': macro redefinition". * Python-ast.c now defines directly functions with their real _Py_xxx() name, rather than xxx(). * Remove "#undef Yield" in C files including pycore_ast.h.
* bpo-43683: Handle generator entry in bytecode (GH-25138)Mark Shannon2021-04-061-0/+1
| | | | | | * Handle check for sending None to starting generator and coroutine into bytecode. * Document new bytecode and make it fail gracefully if mis-compiled.
* Post 3.10.0a7Pablo Galindo2021-04-051-1/+1
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* Python 3.10.0a7v3.10.0a7Pablo Galindo2021-04-051-2/+2
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* bpo-43688: Support the limited C API in debug mode (GH-25131)Victor Stinner2021-04-021-14/+33
| | | | | | | | | | | | | The limited C API is now supported if Python is built in debug mode (if the Py_DEBUG macro is defined). In the limited C API, the Py_INCREF() and Py_DECREF() functions are now implemented as opaque function calls, rather than accessing directly the PyObject.ob_refcnt member, if Python is built in debug mode and the Py_LIMITED_API macro targets Python 3.10 or newer. It became possible to support the limited C API in debug mode because the PyObject structure is the same in release and debug mode since Python 3.8 (see bpo-36465). The limited C API is still not supported in the --with-trace-refs special build (Py_TRACE_REFS macro).
* bpo-43687: Py_Initialize() creates singletons earlier (GH-25147)Victor Stinner2021-04-022-4/+7
| | | | | 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-43688: Fix Py_LIMITED_API version of xxlimited (GH-25135)Victor Stinner2021-04-011-4/+4
| | | | xxlimited targets Python 3.10, not Python 3.16: fix the hexadecimal version number used in the Py_LIMITED_API macro.
* bpo-43510: Implement PEP 597 opt-in EncodingWarning. (GH-19481)Inada Naoki2021-03-293-0/+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-43416: Add Include/README.rst (GH-24884)Erlend Egeberg Aasland2021-03-251-0/+68
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* bpo-43244: Remove the pyarena.h header (GH-25007)Victor Stinner2021-03-245-69/+71
| | | | | | | | | | | | | | | | | | Remove the pyarena.h header file with functions: * PyArena_New() * PyArena_Free() * PyArena_Malloc() * PyArena_AddPyObject() These functions were undocumented, excluded from the limited C API, and were only used internally by the compiler. Add pycore_pyarena.h header. Rename functions: * PyArena_New() => _PyArena_New() * PyArena_Free() => _PyArena_Free() * PyArena_Malloc() => _PyArena_Malloc() * PyArena_AddPyObject() => _PyArena_AddPyObject()
* bpo-43244: Remove parser_interface.h header file (GH-25001)Victor Stinner2021-03-243-53/+31
| | | | | | | | | | | | | | | | | | | | | | | | | Remove parser functions using the "struct _mod" type, because the AST C API was removed: * PyParser_ASTFromFile() * PyParser_ASTFromFileObject() * PyParser_ASTFromFilename() * PyParser_ASTFromString() * PyParser_ASTFromStringObject() These functions were undocumented and excluded from the limited C API. Add pycore_parser.h internal header file. Rename functions: * PyParser_ASTFromFileObject() => _PyParser_ASTFromFile() * PyParser_ASTFromStringObject() => _PyParser_ASTFromString() These functions are no longer exported (replace PyAPI_FUNC() with extern). Remove also _PyPegen_run_parser_from_file() function. Update test_peg_generator to use _PyPegen_run_parser_from_file_pointer() instead.
* bpo-43244: Add pycore_compile.h header file (GH-25000)Victor Stinner2021-03-232-34/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the compiler functions using "struct _mod" type, because the public AST C API was removed: * PyAST_Compile() * PyAST_CompileEx() * PyAST_CompileObject() * PyFuture_FromAST() * PyFuture_FromASTObject() These functions were undocumented and excluded from the limited C API. Rename functions: * PyAST_CompileObject() => _PyAST_Compile() * PyFuture_FromASTObject() => _PyFuture_FromAST() Moreover, _PyFuture_FromAST() is no longer exported (replace PyAPI_FUNC() with extern). _PyAST_Compile() remains exported for test_peg_generator. Remove also compatibility functions: * PyAST_Compile() * PyAST_CompileEx() * PyFuture_FromAST()
* bpo-31861: Add aiter and anext to builtins (#23847)Joshua Bronson2021-03-231-0/+10
| | | | | | Co-authored-by: jab <jab@users.noreply.github.com> Co-authored-by: Daniel Pope <mauve@mauveweb.co.uk> Co-authored-by: Justin Wang <justin39@gmail.com>
* bpo-43244: Remove ast.h, asdl.h, Python-ast.h headers (GH-24933)Victor Stinner2021-03-236-856/+838
| | | | | | | | | | | | | | | | These functions were undocumented and excluded from the limited C API. Most names defined by these header files were not prefixed by "Py" and so could create names conflicts. For example, Python-ast.h defined a "Yield" macro which was conflict with the "Yield" name used by the Windows <winbase.h> header. Use the Python ast module instead. * Move Include/asdl.h to Include/internal/pycore_asdl.h. * Move Include/Python-ast.h to Include/internal/pycore_ast.h. * Remove ast.h header file. * pycore_symtable.h no longer includes Python-ast.h.
* Revert "bpo-40521: Make dtoa bigint free list per-interpreter (GH-24821)" ↵Victor Stinner2021-03-222-20/+0
| | | | | (GH-24964) This reverts commit 5bd1059184b154d339f1bd53d23c98b5bcf14c8c.
* bpo-35134: Add include/cpython/compile.h (GH-24922)Hai Shi2021-03-222-93/+94
| | | | Move C API excluded from the limited C API from Include/compile.h to a new Include/cpython/compile.h header file.
* bpo-43422: Revert _decimal C API addition (GH-24960)Antoine Pitrou2021-03-211-182/+0
| | | | | | | | | Stefan Krah requested the reversal of these (unreleased) changes, quoting him: > The capsule API does not meet my testing standards, since I've focused on the upstream mpdecimal in the last couple of months. > Additionally, I'd like to refine the API, perhaps together with the Arrow community. Automerge-Triggered-By: GH:pitrou
* bpo-43244: Remove symtable.h header file (GH-24910)Victor Stinner2021-03-193-33/+18
| | | | | | | | | | | | | | | | | | Rename Include/symtable.h to to Include/internal/pycore_symtable.h, don't export symbols anymore (replace PyAPI_FUNC and PyAPI_DATA with extern) and rename functions: * PyST_GetScope() to _PyST_GetScope() * PySymtable_BuildObject() to _PySymtable_Build() * PySymtable_Free() to _PySymtable_Free() Remove PySymtable_Build(), Py_SymtableString() and Py_SymtableStringObject() functions. The Py_SymtableString() function was part the stable ABI by mistake but it could not be used, since the symtable.h header file was excluded from the limited C API. The Python symtable module remains available and is unchanged.
* bpo-43244: Remove the PyAST_Validate() function (GH-24911)Victor Stinner2021-03-182-2/+2
| | | | | | | | | | | | Remove the PyAST_Validate() function. It is no longer possible to build a AST object (mod_ty type) with the public C API. The function was already excluded from the limited C API (PEP 384). Rename PyAST_Validate() function to _PyAST_Validate(), move it to the internal C API, and don't export it anymore (replace PyAPI_FUNC with extern). The function was added in bpo-12575 by the commit 832bfe2ebd5ecfa92031cd40c8b41835ba90487f.
* bpo-43244: Add pycore_ast.h header file (GH-24908)Victor Stinner2021-03-172-8/+25
| | | | | | | | Move _PyAST_GetDocString() and _PyAST_ExprAsUnicode() functions the internal C API: from Include/ast.h to a new Include/internal/pycore_ast.h header file. Don't export these functions anymore: replace PyAPI_FUNC() with extern. Remove also unused includes.
* bpo-43244: Rename pycore_ast.h to pycore_ast_state.h (GH-24907)Victor Stinner2021-03-172-4/+4
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* bpo-40521: Make dtoa bigint free list per-interpreter (GH-24821)junyixie2021-03-132-0/+20
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* bpo-43356: Allow passing a signal number to interrupt_main() (GH-24755)Antoine Pitrou2021-03-112-0/+19
| | | | 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-37146: Move _PyEval_DeactivateOpCache() to the internal C API (GH-24786)Victor Stinner2021-03-082-2/+2
| | | Don't export the symbol anymore.
* bpo-43271: Re-enable ceval.c optimizations for Windows debug builds (GH-24739)db3l2021-03-041-1/+2
| | | | | | Partially reverts commit b74396c3167cc780f01309148db02709bc37b432 The optimizations are necessary to prevent the interpreter from crashing in a number of tests involving recursion.
* Post 3.10.0a6Pablo Galindo2021-03-011-1/+1
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* Remove unused suspicious rule in the docsv3.10.0a6Pablo Galindo2021-03-011-2/+2
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* bpo-11717: fix ssize_t redefinition error when targeting 32bit Windows app ↵Jozef Grajciar2021-03-011-1/+3
| | | | (GH-24479)
* bpo-37146: Deactivate opcode cache only when using huntrleaks in the test ↵Pablo Galindo2021-02-281-0/+2
| | | | suite (GH-24643)
* bpo-42128: Structural Pattern Matching (PEP 634) (GH-22917)Brandt Bucher2021-02-266-6/+76
| | | | | Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Talin <viridia@gmail.com> Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* bpo-43239: Export PyCFunction_New with PyAPI_FUNC (GH-24551)Petr Viktorin2021-02-231-0/+6
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* bpo-43277: Add PySet_CheckExact to the C-API (GH-24598)Pablo Galindo2021-02-201-3/+6
| | | For some mysterious reason we have PySet_Check, PyFrozenSet_Check, PyAnySet_Check, PyAnySet_CheckExact and PyFrozenSet_CheckExact but no PySet_CheckExact.
* bpo-42990: Functions inherit current builtins (GH-24564)Victor Stinner2021-02-201-1/+4
| | | | | | | | | | | | | | | | | | | | The types.FunctionType constructor now inherits the current builtins if the globals dictionary has no "__builtins__" key, rather than using {"None": None} as builtins: same behavior as eval() and exec() functions. Defining a function with "def function(...): ..." in Python is not affected, globals cannot be overriden with this syntax: it also inherits the current builtins. PyFrame_New(), PyEval_EvalCode(), PyEval_EvalCodeEx(), PyFunction_New() and PyFunction_NewWithQualName() now inherits the current builtins namespace if the globals dictionary has no "__builtins__" key. * Add _PyEval_GetBuiltins() function. * _PyEval_BuiltinsFromGlobals() now uses _PyEval_GetBuiltins() if builtins cannot be found in globals. * Add tstate parameter to _PyEval_BuiltinsFromGlobals().
* bpo-35134: Move non-limited C API files to Include/cpython/ (GH-24561)Nicholas Sim2021-02-196-5/+5
| | | | | | Include/{odictobject.h,parser_interface.h,picklebufobject.h,pydebug.h,pyfpe.h} into Include/cpython/. Parser: peg_api: include Python.h instead of parser_interface.h.
* bpo-43268: Pass interp rather than tstate to internal functions (GH-24580)Victor Stinner2021-02-195-36/+36
| | | | | | | | | | | | | | | 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-43270: Remove private _PyErr_OCCURRED() macro (GH-24579)Victor Stinner2021-02-191-6/+0
| | | | | | | | Remove the private _PyErr_OCCURRED() macro: use the public PyErr_Occurred() function instead. CPython internals must use the internal _PyErr_Occurred(tstate) function instead: it is the most efficient way to check if an exception was raised.
* bpo-43268: _Py_IsMainInterpreter() now expects interp (GH-24577)Victor Stinner2021-02-191-2/+2
| | | | The _Py_IsMainInterpreter() function now expects interp rather than tstate.
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