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* bpo-43390: Set SA_ONSTACK in PyOS_setsig (GH-24730)Gregory P. Smith2021-03-051-1/+4
| | | | | | | | This is friendlier to other in-process code that an extension module or embedding use could pull in such as CGo where tiny stacks are the norm and sigaltstack() has been used to provide for signal handlers. Without this, signals received by a process using tiny stacks may lead to stack overflow crashes.
* bpo-42129: Add support for resources in namespaces (GH-24670)Jason R. Coombs2021-03-041-730/+742
| | | | | * Unify behavior in ResourceReaderDefaultsTests and align with the behavior found in importlib_resources. * Equip NamespaceLoader with a NamespaceReader. * Apply changes from importlib_resources 5.0.4
* bpo-43271: Re-enable ceval.c optimizations for Windows debug builds (GH-24739)db3l2021-03-041-0/+1
| | | | | | Partially reverts commit b74396c3167cc780f01309148db02709bc37b432 The optimizations are necessary to prevent the interpreter from crashing in a number of tests involving recursion.
* bpo-43358: Fix bad free in assemble function (GH-24697)Alex Henrie2021-03-021-2/+2
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* bpo-37146: Deactivate opcode cache only when using huntrleaks in the test ↵Pablo Galindo2021-02-283-11/+46
| | | | suite (GH-24643)
* bpo-43321: Fix SystemError in getargs.c (GH-24656)Inada Naoki2021-02-271-2/+2
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* bpo-42128: Structural Pattern Matching (PEP 634) (GH-22917)Brandt Bucher2021-02-269-143/+1872
| | | | | Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Talin <viridia@gmail.com> Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* closes bpo-43278: remove unnecessary leading '\n' from COMPILER when build ↵Joseph Shen2021-02-261-2/+2
| | | | | with GCC/Clang (GH-24606) Automerge-Triggered-By: GH:benjaminp
* bpo-36346: Emit DeprecationWarning for PyArg_Parse() with 'u' or 'Z'. (GH-20927)Inada Naoki2021-02-221-1/+4
| | | | | Emit DeprecationWarning when PyArg_Parse*() is called with 'u', 'Z' format. See PEP 623.
* bpo-42093: Cleanup _PyDict_GetItemHint() (GH-24582)Victor Stinner2021-02-211-5/+16
| | | | | | * No longer save/restore the current exception. It is no longer used with an exception raised. * No longer clear the current exception on error: it's now up to the caller.
* bpo-42990: Functions inherit current builtins (GH-24564)Victor Stinner2021-02-201-12/+16
| | | | | | | | | | | | | | | | | | | | 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 Sim2021-02-191-2/+0
| | | | | | 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 Stinner2021-02-1910-130/+126
| | | | | | | | | | | | | | | 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 Stinner2021-02-191-1/+1
| | | | | | | | 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: 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-43268: _Py_IsMainInterpreter() now expects interp (GH-24577)Victor Stinner2021-02-195-10/+10
| | | | The _Py_IsMainInterpreter() function now expects interp rather than tstate.
* bpo-39448: Add regen-frozen makefile target. (GH-18174)Neil Schemenauer2021-02-192-16/+19
| | | | | Add the "regen-frozen" makefile target that regenerates the code for the frozen __hello__ module.
* bpo-42990: Refactor _PyFrame_New_NoTrack() (GH-24566)Victor Stinner2021-02-181-3/+3
| | | | | | | | | | | | * Refactor _PyFrame_New_NoTrack() and PyFunction_NewWithQualName() code. * PyFrame_New() checks for _PyEval_BuiltinsFromGlobals() failure. * Fix a ref leak in _PyEval_BuiltinsFromGlobals() error path. * Complete PyFunction_GetModule() documentation: it returns a borrowed reference and it can return NULL. * Move _PyEval_BuiltinsFromGlobals() definition to the internal C API. * PyFunction_NewWithQualName() uses _Py_IDENTIFIER() API for the "__name__" string to make it compatible with subinterpreters.
* bpo-43152: Update assert statement to remove unused warning (GH-24473)Dong-hee Na2021-02-141-2/+1
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* bpo-42217: compiler: merge same co_code and co_linetable objects (GH-23056)Inada Naoki2021-02-103-3847/+3835
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* bpo-42882: Fix MSVC warnings in pystate.c (GH-24440)Ken Jin2021-02-041-1/+1
| | | _PyRuntimeState.unicode_ids.next_index type is Py_ssize_t.
* Only eliminate jumps to successor block if jump is unconditional. (GH-24417)Mark Shannon2021-02-021-17/+4
| | | | * Prevents elimination of the sole test of a value in statements like: if x or True: ...
* bpo-42990: Further refactoring of PyEval_ functions. (GH-24368)Mark Shannon2021-02-012-126/+204
| | | | | | | | | | * Further refactoring of PyEval_EvalCode and friends. Break into make-frame, and eval-frame parts. * Simplify function vector call using new _PyEval_Vector. * Remove unused internal functions: _PyEval_EvalCodeWithName and _PyEval_EvalCode. * Don't use legacy function PyEval_EvalCodeEx.
* bpo-40455: Fix gcc10+ warning about writing into a section of offset 0 ↵Pablo Galindo2021-01-301-3/+2
| | | | (GH-24384)
* bpo-42927: Inline cache for attributes defined with '__slots__' (#24216)Guido van Rossum2021-01-301-64/+116
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* bpo-38631: Replace compiler fatal errors with exceptions (GH-24369)Victor Stinner2021-01-301-34/+52
| | | | | | | | * Replace Py_FatalError() calls with regular SystemError exceptions. * compiler_exit_scope() calls _PyErr_WriteUnraisableMsg() to log the PySequence_DelItem() failure. * compiler_unit_check() uses _PyMem_IsPtrFreed(). * compiler_make_closure(): remove "(reftype == FREE)" comment since reftype can also be LOCAL or GLOBAL_EXPLICIT.
* Fix a reference leak in the compiler for compiler_lambda() (GH-24382)Pablo Galindo2021-01-291-1/+3
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* bpo-42979: Use _Py_CheckSlotResult() to check slots result (GH-24356)Victor Stinner2021-01-291-7/+11
| | | | | | | | | | | | | | | When Python is built in debug mode (with C assertions), calling a type slot like sq_length (__len__() in Python) now fails with a fatal error if the slot succeeded with an exception set, or failed with no exception set. The error message contains the slot, the type name, and the current exception (if an exception is set). * Check the result of all slots using _Py_CheckSlotResult(). * No longer pass op_name to ternary_op() in release mode. * Replace operator with dunder Python method name in error messages. For example, replace "*" with "__mul__". * Fix compiler_exit_scope() when an exception is set. * Fix bytearray.extend() when an exception is set: don't call bytearray_setslice() with an exception set.
* bpo-42990: Introduce 'frame constructor' struct to simplify API for ↵Mark Shannon2021-01-291-62/+68
| | | | | | | PyEval_CodeEval and friends (GH-24298) * Introduce 'frame constructor' to simplify API for frame creation * Embed struct using a macro to conform to PEP 7
* bpo-42955: Remove sub-packages from sys.stdlib_module_names (GH-24353)Victor Stinner2021-01-271-12/+0
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* bpo-33387: update documentation for exception handling opcode changes (GH-24334)Irit Katriel2021-01-261-2/+0
| | | | | * bpo-33387: remove obsolete comment * bpo-33387: update SETUP_WITH opcode documentation
* bpo-42955: Rename module_names to sys.stdlib_module_names (GH-24332)Victor Stinner2021-01-253-18/+18
| | | | * 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 Stinner2021-01-253-190/+226
| | | | Add sys.module_names, containing the list of the standard library module names.
* bpo-27772: Make preceding width with 0 valid in string format. (GH-11270)Serhiy Storchaka2021-01-251-1/+1
| | | | Previously it was an error with confusing error message.
* bpo-42780: Fix set_inheritable() for O_PATH file descriptors on Linux (GH-24172)cptpcrd2021-01-201-0/+7
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* bpo-42923: _Py_DumpExtensionModules() ignores stdlib ext (GH-24254)Victor Stinner2021-01-192-13/+43
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* bpo-42955: Add Python/module_names.h (GH-24258)Victor Stinner2021-01-191-0/+336
| | | | | | | | | | Add a private list of all stdlib modules: _Py_module_names. * Add Tools/scripts/generate_module_names.py script. * Makefile: Add "make regen-module-names" command. * setup.py: Add --list-module-names option. * GitHub Action and Travis CI also runs "make regen-module-names", not ony "make regen-all", to ensure that the module names remains up to date.
* bpo-42923: Dump extension modules on fatal error (GH-24207)Victor Stinner2021-01-181-0/+41
| | | | | | | The Py_FatalError() function and the faulthandler module now dump the list of extension modules on a fatal error. Add _Py_DumpExtensionModules() and _PyModule_IsExtension() internal functions.
* bpo-42923: Py_FatalError() avoids fprintf() (GH-24242)Victor Stinner2021-01-182-43/+44
| | | | | * Replace buffered fprintf() with unbuffered _Py_write_noraise() in Py_FatalError(). * _Py_DumpHexadecimal() now accepts uintptr_t.
* Mark instructions at end of class scope as artificial. (GH-24222)Mark Shannon2021-01-151-0/+2
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* Eliminate NOPs in extended blocks. (GH-24209)Mark Shannon2021-01-131-5/+13
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* bpo-42908: Mark cleanup code at end of try-except and with artificial (#24202)Mark Shannon2021-01-134-4358/+4432
| | | | | | | | | * Mark bytecodes at end of try-except as artificial. * Make sure that the CFG is consistent throughout optimiization. * Extend line-number propagation logic so that implicit returns after 'try-except' or 'with' have the correct line numbers. * Update importlib
* bpo-41994: Fix refcount issues in Python/import.c (GH-22632)Serhiy Storchaka2021-01-121-56/+50
| | | https://bugs.python.org/issue41994
* bpo-42882: _PyRuntimeState_Init() leaves unicode next_index unchanged (GH-24193)Victor Stinner2021-01-121-1/+4
| | | | | | | | Fix the _PyUnicode_FromId() function (_Py_IDENTIFIER(var) API) when Py_Initialize() / Py_Finalize() is called multiple times: preserve _PyRuntime.unicode_ids.next_index value. Use _PyRuntimeState_INIT macro instead memset(0) to reset _PyRuntimeState members to zero.
* Update frame.f_lineno before any call to the (C) tracing function. (GH-24150)Mark Shannon2021-01-071-33/+54
| | | * Minimizes breakage of C extensions and ensures PyFrame_GetLineNumber is efficient.
* bpo-42823: Fix frame lineno when frame.f_trace is set (GH-24099)Mark Shannon2021-01-053-1144/+1151
| | | | | | | | | * Add test for frame.f_lineno with/without tracing. * Make sure that frame.f_lineno is correct regardless of whether frame.f_trace is set. * Update importlib * Add NEWS
* bpo-42810: Mark jumps at end of if and try statements as artificial. (GH-24091)Mark Shannon2021-01-044-2185/+2202
| | | | | | | * Mark jumps at end of if and try statements as artificial. * Update importlib * Add comment explaining the purpose of ADDOP_JUMP_NOLINE.
* Delete the now unused c_do_not_emit_bytecode field. (#24094)Mark Shannon2021-01-041-33/+0
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* Bring Python into the new year. (GH-24036)Dong-hee Na2021-01-011-1/+1
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* bpo-42745: finalize_interp_types() calls _PyType_Fini() (GH-23953)Victor Stinner2020-12-261-3/+1
| | | | | Call _PyType_Fini() in subinterpreters. Fix reference leaks in subinterpreters.
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