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* gh-124160: Pass main_tstate to update_global_state_for_extension() (#124164)luk13372024-09-191-0/+9
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* gh-123919: Fix null handling in `_freeze_module.c` (#123920)sobolevn2024-09-111-0/+11
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* gh-107954, PEP 741: Add PyInitConfig_AddModule() function (#123668)Victor Stinner2024-09-041-0/+57
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* gh-107954, PEP 741: Adjust Python initialization config (#123663)Victor Stinner2024-09-041-12/+34
| | | | | | | Setting dev_mode to 1 in an isolated configuration now enables also faulthandler. Moreover, setting "module_search_paths" option with PyInitConfig_SetStrList() now sets "module_search_paths_set" to 1.
* gh-107954, PEP 741: Add PyInitConfig C API (#123502)Victor Stinner2024-09-031-0/+139
| | | Add Doc/c-api/config.rst documentation.
* gh-123022: Fix crash with `Py_Initialize` in background thread (#123052)Sam Gross2024-08-171-0/+18
| | | | | | | | | | | | Check that the current default heap is initialized in `_mi_os_get_aligned_hint` and `mi_os_claim_huge_pages`. The mimalloc function `_mi_os_get_aligned_hint` assumes that there is an initialized default heap. This is true for our main thread, but not for background threads. The problematic code path is usually called during initialization (i.e., `Py_Initialize`), but it may also be called if the program allocates large amounts of memory in total. The crash only affected the free-threaded build.
* GH-122390: Replace `_Py_GetbaseOpcode` with `_Py_GetBaseCodeUnit` (GH-122942)Mark Shannon2024-08-131-9/+9
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* gh-117482: Fix the Slot Wrapper Inheritance Tests (gh-122248)Eric Snow2024-07-291-3/+11
| | | The tests were only checking cases where the slot wrapper was present in the initial case. They were missing when the slot wrapper was added in the additional initializations. This fixes that.
* GH-122160: Remove BUILD_CONST_KEY_MAP opcode. (GH-122164)Mark Shannon2024-07-251-11/+11
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* GH-120507: Lower the `BEFORE_WITH` and `BEFORE_ASYNC_WITH` instructions. ↵Mark Shannon2024-06-181-11/+11
| | | | | | | | | (#120640) * Remove BEFORE_WITH and BEFORE_ASYNC_WITH instructions. * Add LOAD_SPECIAL instruction * Reimplement `with` and `async with` statements using LOAD_SPECIAL
* gh-93691: fix too broad source locations of for statement iterators (#120330)Irit Katriel2024-06-121-5/+4
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* gh-119180: Add LOAD_COMMON_CONSTANT opcode (#119321)Jelle Zijlstra2024-05-221-10/+10
| | | | | | | | | | The PEP 649 implementation will require a way to load NotImplementedError from the bytecode. @markshannon suggested implementing this by converting LOAD_ASSERTION_ERROR into a more general mechanism for loading constants. This PR adds this new opcode. I will work on the rest of the implementation of the PEP separately. Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>
* gh-118527: Intern code name and filename on default build (#118576)Sam Gross2024-05-061-2/+2
| | | | Interned and non-interned strings are treated differently by `marshal`, so be consistent between the default and free-threaded build.
* Remove more remnants of deepfreeze (#118159)Guido van Rossum2024-04-222-22/+0
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* gh-117987: Restore several functions removed in Python 3.13 alpha 1 (GH-117993)Victor Stinner2024-04-181-2/+0
| | | | | | | | | Restore these functions removed in Python 3.13 alpha 1: * Py_SetPythonHome() * Py_SetProgramName() * PySys_SetArgvEx() * PySys_SetArgv()
* GH-112354: `END_FOR` instruction to only pop one value. (GH-114247)Mark Shannon2024-01-241-25/+25
| | | | * Compiler emits END_FOR; POP_TOP instead of END_FOR. To support tier 2 side exits in loops.
* gh-112532: Require mimalloc in `--disable-gil` builds (gh-112883)Sam Gross2023-12-121-0/+12
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* gh-111354: Simplify _PyGen_yf by moving some of its work to the compiler and ↵Irit Katriel2023-11-031-11/+11
| | | | frame state (#111648)
* gh-111354: simplify detection of RESUME after YIELD_VALUE at except-depth 1 ↵Irit Katriel2023-11-021-11/+11
| | | | (#111459)
* gh-109595: Add -Xcpu_count=<n> cmdline for container users (#109667)Donghee Na2023-10-101-0/+1
| | | | | | --------- Co-authored-by: Victor Stinner <vstinner@python.org> Co-authored-by: Gregory P. Smith [Google LLC] <greg@krypto.org>
* gh-85283: Add PySys_AuditTuple() function (#108965)Victor Stinner2023-10-051-1/+58
| | | | | | sys.audit() now has assertions to check that the event argument is not NULL and that the format argument does not use the "N" format. Add tests on PySys_AuditTuple().
* GH-105848: Replace KW_NAMES + CALL with LOAD_CONST + CALL_KW (GH-109300)Brandt Bucher2023-09-131-3/+3
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* gh-109256: allocate opcode IDs for internal opcodes in their own range (#109269)Irit Katriel2023-09-121-11/+11
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* GH-108716: Turn off deep-freezing of code objects. (GH-108722)Mark Shannon2023-09-082-4/+0
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* GH-108614: Add `RESUME_CHECK` instruction (GH-108630)Mark Shannon2023-09-071-11/+11
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* gh-108753: Enhance pystats (#108754)Victor Stinner2023-09-061-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Statistics gathering is now off by default. Use the "-X pystats" command line option or set the new PYTHONSTATS environment variable to 1 to turn statistics gathering on at Python startup. Statistics are no longer dumped at exit if statistics gathering was off or statistics have been cleared. Changes: * Add PYTHONSTATS environment variable. * sys._stats_dump() now returns False if statistics are not dumped because they are all equal to zero. * Add PyConfig._pystats member. * Add tests on sys functions and on setting PyConfig._pystats to 1. * Add Include/cpython/pystats.h and Include/internal/pycore_pystats.h header files. * Rename '_py_stats' variable to '_Py_stats'. * Exclude Include/cpython/pystats.h from the Py_LIMITED_API. * Move pystats.h include from object.h to Python.h. * Add _Py_StatsOn() and _Py_StatsOff() functions. Remove '_py_stats_struct' variable from the API: make it static in specialize.c. * Document API in Include/pystats.h and Include/cpython/pystats.h. * Complete pystats documentation in Doc/using/configure.rst. * Don't write "all zeros" stats: if _stats_off() and _stats_clear() or _stats_dump() were called. * _PyEval_Fini() now always call _Py_PrintSpecializationStats() which does nothing if stats are all zeros. Co-authored-by: Michael Droettboom <mdboom@gmail.com>
* gh-108765: Python.h no longer includes <unistd.h> (#108783)Victor Stinner2023-09-021-1/+1
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* gh-105481: generate op IDs from bytecode.c instead of hard coding them in ↵Irit Katriel2023-08-161-11/+11
| | | | opcode.py (#107971)
* gh-106659: Fix test_embed.test_forced_io_encoding() on Windows (#108010)Victor Stinner2023-08-161-0/+5
| | | Use config.legacy_windows_stdio=1 to avoid _io._WindowsConsoleIO.
* GH-105848: Simplify the arrangement of CALL's stack (GH-107788)Brandt Bucher2023-08-091-11/+11
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* GH-77273: Better bytecodes for f-strings (GH-6132)Mark Shannon2023-06-141-2/+2
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* GH-104584: Plugin optimizer API (GH-105100)Mark Shannon2023-06-021-26/+26
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* gh-105145: Remove old functions to config Python init (#105154)Victor Stinner2023-06-011-32/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the following old functions to configure the Python initialization, deprecated in Python 3.11: * PySys_AddWarnOptionUnicode() * PySys_AddWarnOption() * PySys_AddXOption() * PySys_HasWarnOptions() * PySys_SetArgvEx() * PySys_SetArgv() * PySys_SetPath() * Py_SetPath() * Py_SetProgramName() * Py_SetPythonHome() * Py_SetStandardStreamEncoding() * _Py_SetProgramFullPath() Most of these functions are kept in the stable ABI, except: * Py_SetStandardStreamEncoding() * _Py_SetProgramFullPath() Update Doc/extending/embedding.rst and Doc/extending/extending.rst to use the new PyConfig API. _testembed.c: * check_stdio_details() now sets stdio_encoding and stdio_errors of PyConfig. * Add definitions of functions removed from the API but kept in the stable ABI. * test_init_from_config() and test_init_read_set() now use PyConfig_SetString() instead of PyConfig_SetBytesString(). Remove _Py_ClearStandardStreamEncoding() internal function.
* gh-84436: Implement Immortal Objects (gh-19474)Eddie Elizondo2023-04-221-2/+1
| | | | | | | | | This is the implementation of PEP683 Motivation: The PR introduces the ability to immortalize instances in CPython which bypasses reference counting. Tagging objects as immortal allows up to skip certain operations when we know that the object will be around for the entire execution of the runtime. Note that this by itself will bring a performance regression to the runtime due to the extra reference count checks. However, this brings the ability of having truly immutable objects that are useful in other contexts such as immutable data sharing between sub-interpreters.
* gh-102856: Initial implementation of PEP 701 (#102855)Pablo Galindo Salgado2023-04-191-4/+4
| | | | | | Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com> Co-authored-by: Batuhan Taskaya <isidentical@gmail.com> Co-authored-by: Marta Gómez Macías <mgmacias@google.com> Co-authored-by: sunmy2019 <59365878+sunmy2019@users.noreply.github.com>
* gh-103326: Remove `Python/importlib.h` (GH-103331)Nikita Sobolev2023-04-121-2/+1
| | | | Co-authored-by: Brett Cannon <brett@python.org> Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
* GH-88691: Shrink the CALL caches (GH-103230)Brandt Bucher2023-04-051-33/+33
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* GH-89987: Shrink the BINARY_SUBSCR caches (GH-103022)Brandt Bucher2023-03-291-29/+28
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* gh-102650: Remove duplicate include directives from multiple source files ↵chgnrdv2023-03-131-1/+0
| | | | | (#102651) Remove duplicate include directives from multiple source files
* gh-101632: Add the new RETURN_CONST opcode (#101633)penguin_wwy2023-02-071-25/+25
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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.
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