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* bpo-43475: Fix worst case collision behavior for NaN instances (GH-25493)Raymond Hettinger2021-04-222-5/+11
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* bpo-38605: Revert making 'from __future__ import annotations' the default ↵Pablo Galindo2021-04-214-120/+157
| | | | | | (GH-25490) This reverts commits 044a1048ca93d466965afc027b91a5a9eb9ce23c and 1be456ae9d53bb1cba2b24fc86175c282d1c2169, adapting the code to changes that happened after it.
* bpo-25460: Surround suggestions by quotes (GH-25473)Pablo Galindo2021-04-191-2/+2
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* bpo-38530: Cover more error paths in error suggestion functions (GH-25462)Pablo Galindo2021-04-171-2/+5
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* bpo-38530: Include builtins in NameError suggestions (GH-25460)Pablo Galindo2021-04-171-1/+11
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* bpo-38530: Match exactly AttributeError and NameError when offering ↵Pablo Galindo2021-04-161-2/+2
| | | | suggestions (GH-25443)
* bpo-41323: compiler: Reuse tuple in constant tuple folding (GH-25419)Inada Naoki2021-04-164-3253/+3266
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* bpo-43846: Use less stack for large literals and calls (GH-25403)Mark Shannon2021-04-151-50/+144
| | | | | | | | | * Modify compiler to reduce stack consumption for large expressions. * Add more tests for stack usage. * Add NEWS item. * Raise SystemError for truly excessive stack use.
* bpo-38530: Optimize the calculation of string sizes when offering ↵Pablo Galindo2021-04-141-8/+10
| | | | suggestions (GH-25412)
* bpo-38530: Make sure that failing to generate suggestions on failure will ↵Pablo Galindo2021-04-142-7/+5
| | | | not propagate exceptions (GH-25408)
* bpo-38530: Offer suggestions on NameError (GH-25397)Pablo Galindo2021-04-142-8/+69
| | | | | | | | | | | 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 Galindo2021-04-142-1/+157
| | | | | | | | | 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-43760: Speed up check for tracing in interpreter dispatch (#25276)Mark Shannon2021-04-133-28/+38
| | | | | | | | | * 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-43680: _pyio.open() becomes a static method (GH-25354)Victor Stinner2021-04-121-3/+3
| | | | | | | | | | | The Python _pyio.open() function becomes a static method to behave as io.open() built-in function: don't become a bound method when stored as a class variable. It becomes possible since static methods are now callable in Python 3.10. Moreover, _pyio.OpenWrapper becomes a simple alias to _pyio.open. init_set_builtins_open() now sets builtins.open to io.open, rather than setting it to io.OpenWrapper, since OpenWrapper is now an alias to open in the io and _pyio modules.
* bpo-43753: Add Py_Is() and Py_IsNone() functions (GH-25227)Victor Stinner2021-04-101-17/+16
| | | | | | | 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 Suozzo2021-04-101-3/+97
| | | | | | | * 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-43760: Streamline dispatch sequence for machines without computed gotos. ↵Mark Shannon2021-04-081-61/+52
| | | | | | | | (GH-25244) * Do fetch and decode at end of opcode then jump directly to switch. Should allow compilers that don't support computed-gotos, specifically MSVC, to generate better code.
* bpo-42923: Fix _Py_DumpExtensionModules() for NULL sysdict (GH-25262)Victor Stinner2021-04-071-6/+8
| | | Fix Py_FatalError() is called before interp->sysdict is set.
* bpo-43244: Rename pycore_ast.h functions to _PyAST_xxx() (GH-25252)Victor Stinner2021-04-072-285/+294
| | | | | | 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-43495 : Push missing frame block in compile.c (GH-24865)tomKPZ2021-04-071-1/+10
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* bpo-43244: Remove Yield macro from pycore_ast.h (GH-25243)Victor Stinner2021-04-076-286/+288
| | | | | | | | * 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.
* Correct micro release number and add a couple of asserts. (GH-25224)Mark Shannon2021-04-071-3/+3
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* bpo-43105: Importlib now resolves relative paths when creating module spec ↵Steve Dower2021-04-071-2436/+2494
| | | | objects from file locations (GH-25121)
* bump the bytecode magic number (GH-25225)Dennis Sweeney2021-04-061-1/+1
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* bpo-42135: Deprecate implementations of find_module() and find_loader() ↵Brett Cannon2021-04-063-3603/+3670
| | | | (GH-25169)
* bpo-43683: Handle generator entry in bytecode (GH-25138)Mark Shannon2021-04-064-2586/+2656
| | | | | | * Handle check for sending None to starting generator and coroutine into bytecode. * Document new bytecode and make it fail gracefully if mis-compiled.
* bpo-42128: __match_args__ can't be a list anymore (GH-25203)Brandt Bucher2021-04-061-8/+1
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* bpo-27129: Update magic numbers and bootstrapping for GH-25069 (GH-25172)Dennis Sweeney2021-04-041-1/+1
| | | | | | | * Update magic numbers and bootstrapping for GH-25069 * add blurb Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
* bpo-43672: raise ImportWarning when calling find_loader() (GH-25119)Brett Cannon2021-04-021-523/+528
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* bpo-43687: Py_Initialize() creates singletons earlier (GH-25147)Victor Stinner2021-04-022-45/+73
| | | | | 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-27129: Use instruction offsets, not byte offsets, in bytecode and ↵Mark Shannon2021-04-016-4515/+4498
| | | | | | | internally. (GH-25069) * Use instruction offset, rather than bytecode offset. Streamlines interpreter dispatch a bit, and removes most EXTENDED_ARGs for jumps. * Change some uses of PyCode_Addr2Line to PyFrame_GetLineNumber
* bpo-42955: Add _overlapped to sys.stdlib_module_names (GH-25122)Victor Stinner2021-04-011-0/+1
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* bpo-42134: Raise ImportWarning when calling find_module() in the import ↵Brett Cannon2021-03-302-956/+971
| | | | system (GH-25044)
* bpo-43660: Fix crash when displaying exceptions with custom values for ↵Pablo Galindo2021-03-291-1/+2
| | | | sys.stderr (GH-25075)
* bpo-43510: Implement PEP 597 opt-in EncodingWarning. (GH-19481)Inada Naoki2021-03-293-2/+20
| | | | | | | | | | | 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-42136: Deprecate module_repr() as found in importlib (GH-25022)Brett Cannon2021-03-262-1468/+1490
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* Move big block of macros out of function to improve readability. (GH-25020)Mark Shannon2021-03-251-38/+40
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* Only check evalbreaker after calls and on backwards egdes. Makes sure that ↵Mark Shannon2021-03-241-46/+37
| | | | __exit__ or __aexit__ is called in with statments in case of interrupt. (GH-18334)
* bpo-42137: have ModuleType.__repr__ prefer __spec__ over module_repr() ↵Brett Cannon2021-03-241-123/+124
| | | | | (GH-24953) This is to work towards the removal of the use of module_repr() in Python 3.12 (documented as deprecated since 3.4).
* bpo-31861: Fix reference leak in builtin_anext_impl() (GH-25008)Pablo Galindo2021-03-241-1/+4
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* bpo-43244: Remove the pyarena.h header (GH-25007)Victor Stinner2021-03-246-94/+95
| | | | | | | | | | | | | | | | | | 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 Stinner2021-03-242-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | 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 Stinner2021-03-236-49/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Bronson2021-03-232-1/+100
| | | | | | 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 Stinner2021-03-239-15/+10
| | | | | | | | | | | | | | | | 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 Stinner2021-03-221-19/+17
| | | | | (GH-24964) This reverts commit 5bd1059184b154d339f1bd53d23c98b5bcf14c8c.
* bpo-43575: Use PEP 590 vectorcall to speed up map() (GH-24955)Dong-hee Na2021-03-221-2/+43
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* bpo-43551: Fix PyImport_Import() for subinterpreters (GH-24929)junyixie2021-03-221-16/+21
| | | Avoid static variables.
* bpo-43517: Fix false positive in detection of circular imports (#24895)Antoine Pitrou2021-03-201-1/+1
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* bpo-43244: Remove symtable.h header file (GH-24910)Victor Stinner2021-03-193-75/+43
| | | | | | | | | | | | | | | | | | 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.
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