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* GH-99554: Pack location tables more effectively (GH-99556)Brandt Bucher2022-12-221-11/+8
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* gh-99582: freeze `zipimport` into `_bootstrap_python` (#99583)Kai Zhang2022-12-101-0/+2
| | | Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
* GH-98522: Add version number to code objects. (GH-98525)Mark Shannon2022-12-092-0/+5
| | | | | | * Add version number to code object for better versioning of functions. * Improves specialization for closures and list comprehensions.
* gh-98872: Fix a possible resource leak in Python 3.11.0 (GH-99047)SQLPATCH2022-11-241-0/+1
| | | | | Issue: #98872 Automerge-Triggered-By: GH:kumaraditya303
* GH-90699: disallow `_Py_IDENTIFIER` in core code (GH-99210)Kumar Aditya2022-11-091-2/+8
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* gh-96853: Restore test coverage for Py_Initialize(Ex) (GH-98212)Nick Coghlan2022-10-301-19/+43
| | | | | | | | | | | * As most of `test_embed` now uses `Py_InitializeFromConfig`, add a specific test case to cover `Py_Initialize` (and `Py_InitializeEx`) * Rename `_testembed` init helper to clarify the API used * Add a `PyConfig_Clear` call in `Py_InitializeEx` to make the code more obviously correct (it already didn't leak as none of the dynamically allocated config fields were being populated, but it's clearer if the wrappers follow the documented API usage guidelines)
* GH-96793: Change `FOR_ITER` to not pop the iterator on exhaustion. (GH-96801)Mark Shannon2022-10-271-28/+28
| | | | Change FOR_ITER to have the same stack effect regardless of whether it branches or not. Performance is unchanged as FOR_ITER (and specialized forms jump over the cleanup code).
* gh-98608: Change _Py_NewInterpreter() to _Py_NewInterpreterFromConfig() ↵Eric Snow2022-10-261-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | (gh-98609) (see https://github.com/python/cpython/issues/98608) This change does the following: 1. change the argument to a new `_PyInterpreterConfig` struct 2. rename the function to `_Py_NewInterpreterFromConfig()`, inspired by `Py_InitializeFromConfig()` (takes a `_PyInterpreterConfig` instead of `isolated_subinterpreter`) 3. split up the boolean `isolated_subinterpreter` into the corresponding multiple granular settings * allow_fork * allow_subprocess * allow_threads 4. add `PyInterpreterState.feature_flags` to store those settings 5. add a function for checking if a feature is enabled on an opaque `PyInterpreterState *` 6. drop `PyConfig._isolated_interpreter` The existing default (see `Py_NewInterpeter()` and `Py_Initialize*()`) allows fork, subprocess, and threads and the optional "isolated" interpreter (see the `_xxsubinterpreters` module) disables all three. None of that changes here; the defaults are preserved. Note that the given `_PyInterpreterConfig` will not be used outside `_Py_NewInterpreterFromConfig()`, nor preserved. This contrasts with how `PyConfig` is currently preserved, used, and even modified outside `Py_InitializeFromConfig()`. I'd rather just avoid that mess from the start for `_PyInterpreterConfig`. We can preserve it later if we find an actual need. This change allows us to follow up with a number of improvements (e.g. stop disallowing subprocess and support disallowing exec instead). (Note that this PR adds "private" symbols. We'll probably make them public, and add docs, in a separate change.)
* gh-97669: Create Tools/build/ directory (#97963)Victor Stinner2022-10-172-2/+2
| | | | | | | | | | | | | | | | | | | | | | | Create Tools/build/ directory. Move the following scripts from Tools/scripts/ to Tools/build/: * check_extension_modules.py * deepfreeze.py * freeze_modules.py * generate_global_objects.py * generate_levenshtein_examples.py * generate_opcode_h.py * generate_re_casefix.py * generate_sre_constants.py * generate_stdlib_module_names.py * generate_token.py * parse_html5_entities.py * smelly.py * stable_abi.py * umarshal.py * update_file.py * verify_ensurepip_wheels.py Update references to these scripts.
* gh-96512: Move int_max_str_digits setting to PyConfig (#96944)Gregory P. Smith2022-10-031-0/+4
| | | | | | | | | | | It had to live as a global outside of PyConfig for stable ABI reasons in the pre-3.12 backports. This removes the `_Py_global_config_int_max_str_digits` and gets rid of the equivalent field in the internal `struct _is PyInterpreterState` as code can just use the existing nested config struct within that. Adds tests to verify unique settings and configs in subinterpreters.
* GH-96975: Skip incomplete frames in PyEval_GetFrame (GH-97003)Brandt Bucher2022-09-221-0/+68
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* gh-96678: Avoid undefined behaviour in test (#96672)Matthias Görgens2022-09-131-1/+1
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* bpo-45445: Revert "bpo-45445: Fail if an invalid X-option is provided in the ↵Pablo Galindo Salgado2022-07-311-8/+10
| | | | command line (GH-28823)" (#94745)
* gh-90815: Fix test_embed for Windows PGO build with mimalloc (GH-94790)neonene2022-07-131-0/+2
| | | Fixes the failure of PGO building with `mimalloc` on Windows, ensuring that `test_bpo20891` does not break profiling data (`python31*.pgc`).
* gh-94485: Set line number of module's RESUME instruction to 0, as specified ↵Irit Katriel2022-07-051-11/+11
| | | | | by PEP 626 (GH-94552) Co-authored-by: Mark Shannon <mark@hotpy.org>
* GH-91432: Specialize FOR_ITER (GH-91713)Dennis Sweeney2022-06-211-30/+31
| | | | | * Adds FOR_ITER_LIST and FOR_ITER_RANGE specializations. * Adds _PyLong_AssignValue() internal function to avoid temporary boxing of ints.
* gh-91985: Ensure in-tree builds override platstdlib_dir in every path ↵neonene2022-06-161-0/+41
| | | | calculation (GH-93641)
* GH-93429: Merge `LOAD_METHOD` back into `LOAD_ATTR` (GH-93430)Ken Jin2022-06-141-34/+35
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* gh-93382: Cache result of `PyCode_GetCode` in codeobject (GH-93383)Ken Jin2022-06-031-4/+4
| | | | Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com> Co-authored-by: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
* GH-90690: Remove `PRECALL` instruction (GH-92925)Mark Shannon2022-05-191-21/+19
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* gh-57684: Add -P cmdline option and PYTHONSAFEPATH env var (#31542)Victor Stinner2022-05-052-1/+10
| | | | | | | | | | | | Add the -P command line option and the PYTHONSAFEPATH environment variable to not prepend a potentially unsafe path to sys.path. * Add sys.flags.safe_path flag. * Add PyConfig.safe_path member. * Programs/_bootstrap_python.c uses config.safe_path=0. * Update subprocess._optim_args_from_interpreter_flags() to handle the -P command line option. * Modules/getpath.py sets safe_path to 1 if a "._pth" file is present.
* gh-78214: marshal: Stabilize FLAG_REF usage (GH-8226)Inada Naoki2022-05-041-8/+8
| | | | | | | | | Use FLAG_REF always for interned strings. Refcounts of interned string is very unstable. When compiling same source, refcounts of interned string in the output may be 1 or >1. It makes FLAG_REF usage unstable. To help reproducible build, use FLAG_REF for interned string even if refcnt(obj)==1.
* GH-88116: Use a compact format to represent end line and column offsets. ↵Mark Shannon2022-04-211-15/+11
| | | | | | | | | | | | (GH-91666) * Stores all location info in linetable to conform to PEP 626. * Remove column table from code objects. * Remove end-line table from code objects. * Document new location table format
* bpo-47120: Replace the JUMP_ABSOLUTE opcode by the relative JUMP_BACKWARD ↵Irit Katriel2022-03-311-1/+1
| | | | (GH-32115)
* bpo-46841: Use inline caching for calls (GH-31709)Brandt Bucher2022-03-071-35/+40
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* bpo-46841: Use inline caching for attribute accesses (GH-31640)Brandt Bucher2022-03-031-7/+9
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* bpo-46841: Use inline cache for `BINARY_SUBSCR`. (GH-31618)Mark Shannon2022-03-011-10/+12
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* Propagate errors (however unlikely) from _Py_Deepfreeze_Init() (GH-31596)Kumar Aditya2022-02-262-2/+4
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* bpo-46430: Fix memory leak in interned strings of deep-frozen modules (GH-31549)Kumar Aditya2022-02-242-2/+10
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* bpo-46329: Streamline calling sequence a bit. (GH-31465)Mark Shannon2022-02-211-3/+3
| | | | | | | | | | | | | | * Move handling of bound-methods to PRECALL. * Remove call_shape.postcall_shrink * Remove call_shape.callable * Remove call_shape.callable. Change CALL oparg to match PRECALL oparg. * Move KW_NAMES before PRECALL. * Update opcode docs in dis.rst
* bpo-46329: Change calling sequence (again) (GH-31373)Mark Shannon2022-02-181-31/+32
| | | | * Change calling sequence: Add PUSH_NULL. Merge PRECALL_FUNCTION and PRECALL_METHOD into PRECALL.
* bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized ↵Eric Snow2022-02-082-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-46329: Split calls into precall and call instructions. (GH-30855)Mark Shannon2022-01-281-29/+30
| | | | | | | | | | | | | | * Add PRECALL_FUNCTION opcode. * Move 'call shape' varaibles into struct. * Replace CALL_NO_KW and CALL_KW with KW_NAMES and CALL instructions. * Specialize for builtin methods taking using the METH_FASTCALL | METH_KEYWORDS protocol. * Allow kwnames for specialized calls to builtin types. * Specialize calls to tuple(arg) and str(arg).
* bpo-46476: Fix memory leak in code objects generated by deepfreeze (GH-30853)Kumar Aditya2022-01-272-0/+14
| | | Add _Py_Deepfreeze_Fini() and _PyStaticCode_Dealloc() functions.
* bpo-46417: _testembed.c avoids Py_SetProgramName() (GH-30732)Victor Stinner2022-01-211-30/+32
| | | | | | * _testembed_Py_Initialize() now uses the PyConfig API, rather than deprecated Py_SetProgramName(). * Reduce INIT_LOOPS from 16 to 4: test_embed now takes 8.7 seconds rather than 14.7 seconds.
* bpo-46417: Finalize structseq types at exit (GH-30645)Victor Stinner2022-01-211-0/+40
| | | | | | | | | | | | | | | | | | 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-46303: Move fileutils.h private functions to internal C API (GH-30484)Victor Stinner2022-01-111-0/+1
| | | | | | | | | | Move almost all private functions of Include/cpython/fileutils.h to the internal C API Include/internal/pycore_fileutils.h. Only keep _Py_fopen_obj() in Include/cpython/fileutils.h, since it's used by _testcapi which must not use the internal C API. Move EncodeLocaleEx() and DecodeLocaleEx() functions from _testcapi to _testinternalcapi, since the C API moved to the internal C API.
* bpo-45923: Handle call events in bytecode (GH-30364)Mark Shannon2022-01-061-31/+31
| | | | * Add a RESUME instruction to handle "call" events.
* bpo-45189: Drop the "list_frozen" command from _test_embed. (GH-30273)Dong-hee Na2021-12-281-22/+0
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* bpo-44525: Split calls into PRECALL and CALL (GH-30011)Mark Shannon2021-12-141-4/+4
| | | | | | | | | | * Add 3 new opcodes for calls: PRECALL_METHOD, CALL_NO_KW, CALL_KW. * Update specialization to handle new CALL opcodes. * Specialize call to method descriptors. * Remove old CALL opcodes: CALL_FUNCTION, CALL_METHOD, CALL_METHOD_KW, CALL_FUNCTION_KW.
* bpo-45949: Pure Python freeze module for cross builds (GH-29899)Christian Heimes2021-12-132-0/+70
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* bpo-45950: Introduce Bootstrap Python again (#29859)Christian Heimes2021-12-031-0/+105
| | | | | | | | | The build system now uses a :program:`_bootstrap_python` interpreter for freezing and deepfreezing again. To speed up build process the build tools :program:`_bootstrap_python` and :program:`_freeze_module` are no longer build with LTO. Cross building depends on a build Python interpreter, which must have same version and bytecode as target host Python.
* bpo-45954: Rename PyConfig.no_debug_ranges to code_debug_ranges (GH-29886)Victor Stinner2021-12-021-1/+1
| | | | | | | Rename PyConfig.no_debug_ranges to PyConfig.code_debug_ranges and invert the value. Document -X no_debug_ranges and PYTHONNODEBUGRANGES env var in PyConfig.code_debug_ranges documentation.
* Remove Programs/_freeze_importlib (#29357)Brandt Bucher2021-11-021-0/+0
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* bpo-45666: Use `%S` for MSVC and `%s` elsewhere for `swprintf` in ↵Nikita Sobolev2021-11-011-1/+7
| | | | | `_testembed.c` (GH-29341) Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
* bpo-45666: fixes warning with `swprintf` and `%s` (GH-29307)Nikita Sobolev2021-10-311-1/+1
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* bpo-45395: Make custom frozen modules additions instead of replacements. ↵Eric Snow2021-10-282-23/+15
| | | | | | | | | (gh-28778) Currently custom modules (the array set on PyImport_FrozenModules) replace all the frozen stdlib modules. That can be problematic and is unlikely to be what the user wants. This change treats the custom frozen modules as additions instead. They take precedence over all other frozen modules except for those needed to bootstrap the import system. If the "code" field of an entry in the custom array is NULL then that frozen module is treated as disabled, which allows a custom entry to disable a frozen stdlib module. This change allows us to get rid of is_essential_frozen_module() and simplifies the logic for which frozen modules should be ignored. https://bugs.python.org/issue45395
* bpo-44511: Improve the bytecode for class and mapping patterns (GH-26922)Brandt Bucher2021-10-271-0/+0
| | | | | | | * Refactor mapping patterns and speed up class patterns. * Simplify MATCH_KEYS and MATCH_CLASS. * Add COPY opcode.
* bpo-45020: Add tests for the -X "frozen_modules" option. (gh-28997)Eric Snow2021-10-251-0/+39
| | | | | We hadn't explicitly added any tests for this, so here they are. https://bugs.python.org/issue45020
* bpo-45434: pyport.h no longer includes <stdlib.h> (GH-28914)Victor Stinner2021-10-132-0/+2
| | | | | Include <stdlib.h> explicitly in C files. Python.h includes <wchar.h>.
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