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* gh-81057: Move PyImport_Inittab to _PyRuntimeState (gh-99402)Eric Snow2022-11-121-0/+1
| | | | | We actually don't move PyImport_Inittab. Instead, we make a copy that we keep on _PyRuntimeState and use only that after Py_Initialize(). We also prevent folks from modifying PyImport_Inittab (the best we can) after that point. https://github.com/python/cpython/issues/81057
* GH-90699: disallow `_Py_IDENTIFIER` in core code (GH-99210)Kumar Aditya2022-11-091-2/+2
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* gh-98724: Fix Py_CLEAR() macro side effects (#99100)Victor Stinner2022-11-091-20/+24
| | | | | | | The Py_CLEAR(), Py_SETREF() and Py_XSETREF() macros now only evaluate their argument once. If an argument has side effects, these side effects are no longer duplicated. Add test_py_clear() and test_py_setref() unit tests to _testcapi.
* gh-91248: Add PyFrame_GetVar() function (#95712)Victor Stinner2022-11-081-1/+2
| | | | | | Add PyFrame_GetVar() and PyFrame_GetVarString() functions to get a frame variable by its name. Move PyFrameObject C API tests from test_capi to test_frame.
* GH-98686: Quicken everything (GH-98687)Brandt Bucher2022-11-021-1/+0
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* gh-98610: Adjust the Optional Restrictions on Subinterpreters (GH-98618)Eric Snow2022-10-312-8/+19
| | | | | | | Previously, the optional restrictions on subinterpreters were: disallow fork, subprocess, and threads. By default, we were disallowing all three for "isolated" interpreters. We always allowed all three for the main interpreter and those created through the legacy `Py_NewInterpreter()` API. Those settings were a bit conservative, so here we've adjusted the optional restrictions to: fork, exec, threads, and daemon threads. The default for "isolated" interpreters disables fork, exec, and daemon threads. Regular threads are allowed by default. We continue always allowing everything For the main interpreter and the legacy API. In the code, we add `_PyInterpreterConfig.allow_exec` and `_PyInterpreterConfig.allow_daemon_threads`. We also add `Py_RTFLAGS_DAEMON_THREADS` and `Py_RTFLAGS_EXEC`.
* gh-98410: move getbufferproc and releasebufferproc to buffer.h (#31158)David Hewitt2022-10-311-4/+0
| | | This adds them to the Limited API.
* gh-98811: use full source location to simplify __future__ imports error ↵Irit Katriel2022-10-311-2/+17
| | | | checking. This also fixes an incorrect error offset. (GH-98812)
* gh-98783: Fix crashes when `str` subclasses are used in `_PyUnicode_Equal` ↵Nikita Sobolev2022-10-301-1/+1
| | | | (#98806)
* gh-98586: Add vector call APIs to the Limited API (GH-98587)Wenzel Jakob2022-10-271-13/+0
| | | Expose the facilities for making vector calls through Python's limited API.
* gh-98608: Change _Py_NewInterpreter() to _Py_NewInterpreterFromConfig() ↵Eric Snow2022-10-263-5/+44
| | | | | | | | | | | | | | | | | | | | | | | | | (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-91058: Add error suggestions to 'import from' import errors (#98305)Pablo Galindo Salgado2022-10-251-0/+8
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* gh-91051: allow setting a callback hook on PyType_Modified (GH-97875)Carl Meyer2022-10-211-0/+11
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* gh-95756: Lazily created cached co_* attrs (GH-97791)Ken Jin2022-10-111-1/+8
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* gh-91052: Add PyDict_Unwatch for unwatching a dictionary (#98055)Carl Meyer2022-10-081-0/+1
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* GH-91052: Add C API for watching dictionaries (GH-31787)Carl Meyer2022-10-071-0/+23
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* GH-91079: Decouple C stack overflow checks from Python recursion checks. ↵Mark Shannon2022-10-051-2/+14
| | | | (GH-96510)
* gh-96512: Move int_max_str_digits setting to PyConfig (#96944)Gregory P. Smith2022-10-031-0/+1
| | | | | | | | | | | 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-96670: Raise SyntaxError when parsing NULL bytes (#97594)Pablo Galindo Salgado2022-09-271-0/+1
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* GH-91049: Introduce set vectorcall field API for PyFunctionObject (GH-92257)adphrost2022-09-151-1/+3
| | | | Co-authored-by: Andrew Frost <adfrost@fb.com> Co-authored-by: Itamar Ostricher <itamarost@gmail.com>
* gh-96143: Allow Linux perf profiler to see Python calls (GH-96123)Pablo Galindo Salgado2022-08-301-0/+1
| | | | | | | :warning: :warning: Note for reviewers, hackers and fellow systems/low-level/compiler engineers :warning: :warning: If you have a lot of experience with this kind of shenanigans and want to improve the **first** version, **please make a PR against my branch** or **reach out by email** or **suggest code changes directly on GitHub**. If you have any **refinements or optimizations** please, wait until the first version is merged before starting hacking or proposing those so we can keep this PR productive.
* GH-93503: Add thread-specific APIs to set profiling and tracing functions in ↵Pablo Galindo Salgado2022-08-241-0/+2
| | | | | | | | | | | | | | | | | the C-API (#93504) * gh-93503: Add APIs to set profiling and tracing functions in all threads in the C-API * Use a separate API * Fix NEWS entry * Add locks around the loop * Document ignoring exceptions * Use the new APIs in the sys module * Update docs
* gh-90928: Statically Initialize the Keywords Tuple in Clinic-Generated Code ↵Eric Snow2022-08-111-0/+1
| | | | | | | | | | | | | | | | (gh-95860) We only statically initialize for core code and builtin modules. Extension modules still create the tuple at runtime. We'll solve that part of interpreter isolation separately. This change includes generated code. The non-generated changes are in: * Tools/clinic/clinic.py * Python/getargs.c * Include/cpython/modsupport.h * Makefile.pre.in (re-generate global strings after running clinic) * very minor tweaks to Modules/_codecsmodule.c and Python/Python-tokenize.c All other changes are generated code (clinic, global strings).
* gh-93274: Expose receiving vectorcall in the Limited API (GH-95717)Petr Viktorin2022-08-082-8/+5
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* gh-94673: Add Per-Interpreter tp_subclasses for Static Builtin Types (gh-95301)Eric Snow2022-08-051-3/+2
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* gh-94936: C getters: co_varnames, co_cellvars, co_freevars (#95008)Ken Jin2022-08-041-0/+6
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* GH-95245: Store object values and dict pointers in single tagged pointer. ↵Mark Shannon2022-08-012-3/+4
| | | | (GH-95278)
* gh-94673: Add Per-Interpreter tp_weaklist for Static Builtin Types (#95302)Eric Snow2022-07-291-1/+1
| | | | | | | | | | | | | | | * Store tp_weaklist on the interpreter state for static builtin types. * Factor out _PyStaticType_GET_WEAKREFS_LISTPTR(). * Add _PyStaticType_ClearWeakRefs(). * Add a comment about how _PyStaticType_ClearWeakRefs() loops. * Document the change. * Update Doc/whatsnew/3.12.rst * Fix a typo.
* gh-95174: Add pthread stubs for WASI (GH-95234)Christian Heimes2022-07-272-0/+91
| | | Co-authored-by: Brett Cannon <brett@python.org>
* gh-94673: Add Per-Interpreter Storage for Static Builtin Types (#95255)Eric Snow2022-07-261-0/+1
| | | | | | | | | | | | | | This is the last precursor to storing tp_subclasses (and tp_weaklist) on the interpreter state for static builtin types. Here we add per-type storage on PyInterpreterState, but only for the static builtin types. This involves the following: * add PyInterpreterState.types * move PyInterpreterState.type_cache to it * add a "num_builtins_initialized" field * add a "builtins" field (a static array big enough for all the static builtin types) * add _PyStaticType_GetState() to look up a static builtin type's state * (temporarily) add PyTypeObject.tp_static_builtin_index (to hold the type's index into PyInterpreterState.types.builtins) We will be eliminating tp_static_builtin_index in a later change.
* GH-92678: Expose managed dict clear and visit functions (#95246)Mark Shannon2022-07-251-0/+3
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* gh-93382: Sync up `co_code` changes with 3.11 (GH-94227)Ken Jin2022-06-241-1/+1
| | | Sync up co_code changes with 3.11 commit 852b4d4bcd12b0b6839a015a262ce976b134f6f3.
* gh-87347: Add parenthesis around macro arguments (#93915)Victor Stinner2022-06-2011-37/+38
| | | Add unit test on Py_MEMBER_SIZE() and some other macros.
* GH-93516: Speedup line number checks when tracing. (GH-93763)Mark Shannon2022-06-201-1/+3
| | | | * Use a lookup table to reduce overhead of getting line numbers during tracing.
* GH-93897: Store frame size in code object and de-opt if insufficient space ↵Mark Shannon2022-06-201-2/+2
| | | | on thread frame stack. (GH-93908)
* gh-93937, C API: Move PyFrame_GetBack() to Python.h (#93938)Victor Stinner2022-06-192-13/+17
| | | | | | | | | | | | | | | | Move the follow functions and type from frameobject.h to pyframe.h, so the standard <Python.h> provide frame getter functions: * PyFrame_Check() * PyFrame_GetBack() * PyFrame_GetBuiltins() * PyFrame_GetGenerator() * PyFrame_GetGlobals() * PyFrame_GetLasti() * PyFrame_GetLocals() * PyFrame_Type Remove #include "frameobject.h" from many C files. It's no longer needed.
* gh-77782: Deprecate global configuration variable (#93943)Victor Stinner2022-06-172-19/+22
| | | | | | | Deprecate global configuration variable like Py_IgnoreEnvironmentFlag: the Py_InitializeFromConfig() API should be instead. Fix declaration of Py_GETENV(): use PyAPI_FUNC(), not PyAPI_DATA().
* gh-74953: Add _PyTime_FromMicrosecondsClamp() function (#93942)Victor Stinner2022-06-171-0/+4
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* gh-87347: Add parenthesis around PyXXX_Check() arguments (#92815)Victor Stinner2022-06-1610-18/+18
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* GH-93516: Store offset of first traceable instruction in code object (GH-93769)Mark Shannon2022-06-141-0/+1
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* gh-93741: Add private C API _PyImport_GetModuleAttrString() (GH-93742)Serhiy Storchaka2022-06-141-0/+3
| | | | | | It combines PyImport_ImportModule() and PyObject_GetAttrString() and saves 4-6 lines of code on every use. Add also _PyImport_GetModuleAttr() which takes Python strings as arguments.
* gh-89653: PEP 670: Macros always cast arguments in cpython/ (#93766)Victor Stinner2022-06-139-92/+28
| | | | Header files in the Include/cpython/ are only included if the Py_LIMITED_API macro is not defined.
* Remove ANY_VARARGS() macro from the C API (#93764)Victor Stinner2022-06-131-1/+3
| | | The macro was exposed by mistake.
* gh-89653: PEP 670: Convert PyFunction macros (#93765)Victor Stinner2022-06-131-16/+39
| | | Convert PyFunction macros to static inline functions.
* gh-93382: Cache result of `PyCode_GetCode` in codeobject (GH-93383)Ken Jin2022-06-031-0/+1
| | | | Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com> Co-authored-by: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
* gh-92536: Mark PyUnicode_READY() argument as unused (#93011)Wenzel Jakob2022-05-231-2/+2
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* gh-89653: Add assertions on PyUnicode_READ() index (#92883)Victor Stinner2022-05-171-1/+9
| | | | Add assertions on the index argument of PyUnicode_READ(), PyUnicode_READ_CHAR() and PyUnicode_WRITE() functions.
* gh-89653: PEP 670: Fix PyUnicode_READ() cast (#92872)Victor Stinner2022-05-171-1/+2
| | | | _Py_CAST() cannot be used with a constant type: use _Py_STATIC_CAST() instead.
* gh-92781: Avoid mixing declarations and code in C API (#92783)Victor Stinner2022-05-155-11/+17
| | | | | Avoid mixing declarations and code in the C API to fix the compiler warning: "ISO C90 forbids mixed declarations and code" [-Werror=declaration-after-statement].
* gh-85858: Remove PyUnicode_InternImmortal() function (#92579)Victor Stinner2022-05-131-10/+3
| | | | | | | | | | | | | | | | | Remove the PyUnicode_InternImmortal() function and the SSTATE_INTERNED_IMMORTAL macro. The PyUnicode_InternImmortal() function is still exported in the stable ABI. The function is removed from the API. PyASCIIObject.state.interned size is now a single bit, rather than 2 bits. Keep SSTATE_NOT_INTERNED and SSTATE_INTERNED_MORTAL macros for backward compatibility, but no longer use them internally since the interned member is now a single bit and so can only have two values (interned or not interned). Update stats of _PyUnicode_ClearInterned().
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