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* bpo-43774: Remove unused PYMALLOC_DEBUG macro (GH-25711)Victor Stinner2021-04-293-13/+4
| | | Enhance also the documentation of debug hooks on memory allocators.
* bpo-43908: Document Static Types in the C API (GH-25710)Victor Stinner2021-04-291-0/+2
| | | Update also PyTypeObject structure definition in the doc.
* bpo-43892: Make match patterns explicit in the AST (GH-25585)Nick Coghlan2021-04-293-20/+100
| | | Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
* bpo-43908: Add Py_TPFLAGS_IMMUTABLETYPE flag (GH-25520)Erlend Egeberg Aasland2021-04-281-0/+3
| | | | | | Introduce Py_TPFLAGS_IMMUTABLETYPE flag for immutable type objects, and modify PyType_Ready() to set it for static types. Co-authored-by: Victor Stinner <vstinner@python.org>
* bpo-28254: Add a C-API for controlling the GC state (GH-25687)scoder2021-04-281-1/+5
| | | | | | | | Add new C-API functions to control the state of the garbage collector: PyGC_Enable(), PyGC_Disable(), PyGC_IsEnabled(), corresponding to the functions in the gc module. Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Victor Stinner <vstinner@python.org>
* bpo-43962: Fix _PyInterpreterState_IDIncref() (GH-25683)Victor Stinner2021-04-281-1/+1
| | | | _PyInterpreterState_IDIncref() now calls _PyInterpreterState_IDInitref() and always increments id_refcount.
* bpo-41486: Faster bz2/lzma/zlib via new output buffering (GH-21740)Ma Lin2021-04-281-0/+317
| | | | | | | | | Faster bz2/lzma/zlib via new output buffering. Also adds .readall() function to _compression.DecompressReader class to take best advantage of this in the consume-all-output at once scenario. Often a 5-20% speedup in common scenarios due to less data copying. Contributed by Ma Lin.
* bpo-42609: Check recursion depth in the AST validator and optimizer (GH-23744)Serhiy Storchaka2021-04-251-0/+3
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* bpo-30555: Fix WindowsConsoleIO fails in the presence of fd redirection ↵Segev Finer2021-04-231-1/+9
| | | | | | | | (GH-1927) This works by not caching the handle and instead getting the handle from the file descriptor each time, so that if the actual handle changes by fd redirection closing/opening the console handle beneath our feet, we will keep working correctly.
* bpo-43914: Highlight invalid ranges in SyntaxErrors (#25525)Pablo Galindo2021-04-232-0/+11
| | | | | | | | | | | | | | | | | To improve the user experience understanding what part of the error messages associated with SyntaxErrors is wrong, we can highlight the whole error range and not only place the caret at the first character. In this way: >>> foo(x, z for z in range(10), t, w) File "<stdin>", line 1 foo(x, z for z in range(10), t, w) ^ SyntaxError: Generator expression must be parenthesized becomes >>> foo(x, z for z in range(10), t, w) File "<stdin>", line 1 foo(x, z for z in range(10), t, w) ^^^^^^^^^^^^^^^^^^^^ SyntaxError: Generator expression must be parenthesized
* bpo-43868: Remove PyOS_ReadlineFunctionPointer from the stable ABI list ↵Petr Viktorin2021-04-232-1/+1
| | | | | | | | | | | (GH-25442) The inclusion of PyOS_ReadlineFunctionPointer in python3dll.c was a mistake. According to PEP 384: > functions expecting FILE* are not part of the ABI, to avoid depending > on a specific version of the Microsoft C runtime DLL on Windows. https://bugs.python.org/issue43868
* bpo-43795: PEP-652: Clean up the stable ABI/limited API (GH-25482)Petr Viktorin2021-04-235-8/+4
| | | | | | | | | | | | | | | | | | - `_Py_EncodeLocaleRaw`, which is private by name, undocumented, and wasn't exported in `python3.dll`, is moved to a private header. - `_Py_HashSecret_Initialized`, again private by name, undocumented, and not exported in `python3.dll`, is excluded with `Py_LIMITED_API`. - `PyMarshal_*` and `PyMember_*One` functions, declared in private headers and not exported in `python3.dll`, are removed from `Doc/data/stable_abi.dat`. - `PyMem_Calloc` which *was* exported in `python3dll.c`, is moved to public headers where it joins its other `PyMem_*` friends. Only the last change is documented in the blurb; others are not user-visible. (Nothing uses `Doc/data/stable_abi.dat` yet.) https://bugs.python.org/issue43795
* bpo-43795: PEP-652: Simplify headers for easier static analysis (GH-25483)Petr Viktorin2021-04-232-1/+4
| | | | | | | | | | | | | | | | | | | | As part of the PEP-652 implementation, I'll tighten the CI check for functions/data defined with `Py_LIMITED_API`. Discussion in https://discuss.python.org/t/pep-652-maintaining-the-stable-abi/6986 suggests that parsing C headers is OK (though personally I'd rather generate it...), but writing a full C parser is a monumental task and adding an existing one as a dependency brings too many vendoring/bootstraping issues. So, for the check I'll use a "simple" regex on preprocessor output, and adapt the few trivial places where the regex won't work. - Keep declarations in the limited API to one item per line - Make it possible to override `_Py_NO_RETURN`, so the annotation can be removed from preprocessor output. https://bugs.python.org/issue43795
* 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.
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