Commit Graph

7484 Commits

Author SHA1 Message Date
Dennis Sweeney 6ddb09f35b
bpo-46848: Use stringlib/fastsearch in mmap (GH-31625)
Speed up mmap.find(). Add _PyBytes_Find() and _PyBytes_ReverseFind().
2022-03-01 23:46:30 -05:00
Inada Naoki 9833bb91e4
bpo-46845: Reduce dict size when all keys are Unicode (GH-31564) 2022-03-02 08:09:28 +09:00
Mark Dickinson c60e6b6ad7
bpo-46311: Clean up PyLong_FromLong and PyLong_FromLongLong (GH-30496) 2022-03-01 14:20:52 +00:00
Eric Snow 08deed1af5
bpo-46753: Add the empty tuple to the _PyRuntimeState.global_objects. (gh-31345)
https://bugs.python.org/issue46753
2022-02-28 15:15:48 -07:00
Victor Stinner ad56919c5e
bpo-46857: Fix refleak in OSError INIT_ALIAS() (GH-31594)
_Py_GetRefTotal() no longer decrements _PySet_Dummy refcount.
2022-02-27 00:28:24 +01:00
Kumar Aditya 0d9b565e62
Propagate errors (however unlikely) from _Py_Deepfreeze_Init() (GH-31596) 2022-02-26 08:35:03 -08:00
Victor Stinner 5ab745fc51
bpo-46852: Remove the float.__set_format__() method (GH-31585)
Remove the undocumented private float.__set_format__() method,
previously known as float.__set_format__() in Python 3.7. Its
docstring said: "You probably don't want to use this function. It
exists mainly to be used in Python's test suite."
2022-02-26 00:53:27 +01:00
Victor Stinner 87af12bff3
bpo-46836: Rename InterpreterFrame to _PyInterpreterFrame (GH-31583)
Rename also struct _interpreter_frame to struct _PyInterpreterFrame.

Reduce risk of name conflicts if a project includes pycore_frame.h.
2022-02-25 16:22:00 +01:00
Victor Stinner 4a0c7a1aac
bpo-45316: Move private PyCode C API to internal C API (GH-31576)
Rename private functions (no exported), add an underscore prefix:

* PyLineTable_InitAddressRange() => _PyLineTable_InitAddressRange()
* PyLineTable_NextAddressRange() => _PyLineTable_NextAddressRange()
* PyLineTable_PreviousAddressRange() => _PyLineTable_PreviousAddressRange()

Move private functions to the internal C API:

* _PyCode_Addr2EndLine()
* _PyCode_Addr2EndOffset()
* _PyCode_Addr2Offset()
* _PyCode_InitAddressRange()
* _PyCode_InitEndAddressRange(
* _PyLineTable_InitAddressRange()
* _PyLineTable_NextAddressRange()
* _PyLineTable_PreviousAddressRange()

No longer export the following internal functions:

* _PyCode_GetVarnames()
* _PyCode_GetCellvars()
* _PyCode_GetFreevars()
* _Py_GetSpecializationStats()

Add "extern" to pycore_code.h functions to identify them more easiliy
(they are still not exported).
2022-02-25 15:41:32 +01:00
Victor Stinner 4657bf7016
bpo-1635741: Fix winreg reference leaks (GH-31560)
Clear also the PyHKEY_Type static type at exit.
2022-02-25 12:34:00 +01:00
Victor Stinner 7d03c8be5a
bpo-46852: Rename float.__set_format__() to float.__setformat__() (GH-31558)
Rename the private undocumented float.__set_format__() method to
float.__setformat__() to fix a typo introduced in Python 3.7. The
method is only used by test_float.

The change enables again test_float tests on the float format which
were previously skipped because of the typo.

The typo was introduced in Python 3.7 by bpo-20185
in commit b5c51d3dd9.
2022-02-25 03:05:25 +01:00
Victor Stinner 1b2611eb02
bpo-46656: Remove Py_NO_NAN macro (GH-31160)
Building Python now requires support for floating point Not-a-Number
(NaN): remove the Py_NO_NAN macro.
2022-02-25 01:32:57 +01:00
Victor Stinner 042f31da55
bpo-45459: C API uses type names rather than structure names (GH-31528)
Thanks to the new pytypedefs.h, it becomes to use type names like
PyObject rather like structure names like "struct _object".
2022-02-24 17:51:59 +01:00
Mark Shannon ae3adbeaed
Add (undocumented) _co_quickened attribute for code object. (GH-31552) 2022-02-24 12:10:53 +00:00
Victor Stinner 9bbdde2180
bpo-45412: Add _PY_SHORT_FLOAT_REPR macro (GH-31171)
Remove the HAVE_PY_SET_53BIT_PRECISION macro (moved to the internal
C API).

* Move HAVE_PY_SET_53BIT_PRECISION macro to pycore_pymath.h.
* Replace PY_NO_SHORT_FLOAT_REPR macro with _PY_SHORT_FLOAT_REPR
  macro which is always defined. gcc -Wundef emits a warning when
  using _PY_SHORT_FLOAT_REPR but the macro is not defined, if
  pycore_pymath.h include was forgotten.
2022-02-23 18:16:23 +01:00
Eric Snow 1f455361ec
bpo-46765: Replace Locally Cached Strings with Statically Initialized Objects (gh-31366)
https://bugs.python.org/issue46765
2022-02-22 17:23:51 -07:00
Irit Katriel 38b5acf867
bpo-46729: add number of sub-exceptions in str() of BaseExceptionGroup (GH-31294) 2022-02-22 18:28:58 +00:00
Inada Naoki 1e344684d8
dict: Add dk_log2_index_bytes (GH-31439) 2022-02-22 11:03:15 +00:00
Jelle Zijlstra 0a222db2bc
fix __bool__ docstring (GH-31301) 2022-02-21 07:42:27 -08:00
Inada Naoki 5543d9c559
dict: Use DK_LOG_SIZE in hot loop. (GH-31405)
DK_LOG_SIZE(key) < 8 is faster than DK_SIZE(key) <= 0xff, at least on GCC.
2022-02-19 13:15:20 +09:00
Christian Heimes 9e06d03672
bpo-46730: Fix refleak and tighten NULL checks (GH-31389)
``PyType_GetQualName`` returns a new reference.

Signed-off-by: Christian Heimes <christian@python.org>
2022-02-17 14:27:42 -05:00
Robert-André Mauchin 482a4b6c3f
bpo-46745: Fix typo in PositionsIterator (#31322)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
2022-02-16 21:20:06 -08:00
Alex-Blade 0cb765b2ce
bpo-46730: Add more info to @property AttributeError messages (GH-31311)
On `obj.read_only_property = x`, raise `AttributeError: property 'read_only_property' of 'A' object has no setter`.
2022-02-16 02:07:34 -05:00
Eric Snow 12360aa159
bpo-46541: Discover the global strings. (gh-31346)
Instead of manually enumerating the global strings in generate_global_objects.py, we extrapolate the list from usage of _Py_ID() and _Py_STR() in the source files.

This is partly inspired by gh-31261.

https://bugs.python.org/issue46541
2022-02-14 17:36:51 -07:00
Raymond Hettinger 0ae4019179
Improve docstring for set.discard() (GH-31315) 2022-02-13 15:42:59 -06:00
Dennis Sweeney 4a66615ba7
bpo-46615: Don't crash when set operations mutate the sets (GH-31120)
Ensure strong references are acquired whenever using `set_next()`. Added randomized test cases for `__eq__` methods that sometimes mutate sets when called.
2022-02-11 11:25:08 -05:00
Petr Viktorin 204946986f
bpo-46613: Add PyType_GetModuleByDef to the public API (GH-31081)
* Make PyType_GetModuleByDef public (remove underscore)

Co-authored-by: Victor Stinner <vstinner@python.org>
2022-02-11 17:22:11 +01:00
Kumar Aditya c0a5ebeb12
bpo-46430: Intern strings in deep-frozen modules (GH-30683) 2022-02-09 08:52:42 -08:00
Eric Snow 81c72044a1
bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized 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
2022-02-08 13:39:07 -07:00
Mark Shannon 25db2b361b
bpo-46675: Allow object value arrays and split key dictionaries larger than 16 (GH-31191) 2022-02-08 11:50:38 +00:00
Victor Stinner 760349198d
bpo-46670: Remove unused macros in the Objects directory (GH-31193) 2022-02-07 16:21:41 +01:00
Victor Stinner b556f53785
bpo-46670: Test if a macro is defined, not its value (GH-31178)
* audioop.c: #ifdef WORDS_BIGENDIAN
* ctypes.h: #ifdef USING_MALLOC_CLOSURE_DOT_C
* _ctypes/malloc_closure.c: #ifdef HAVE_FFI_CLOSURE_ALLOC
  and #ifdef USING_APPLE_OS_LIBFFI
* pytime.c: #ifdef __APPLE__
* unicodeobject.c: #ifdef HAVE_NON_UNICODE_WCHAR_T_REPRESENTATION
2022-02-07 01:46:51 +01:00
Victor Stinner 097f74a5a3
bpo-46670: Define all macros for stringlib (GH-31176)
bytesobject.c, bytearrayobject.c and unicodeobject.c now define all
macros used by stringlib, to avoid using undefined macros.
Fix "gcc -Wundef" warnings.
2022-02-07 01:26:58 +01:00
Victor Stinner 16f96a4cf9
bpo-46670: Remove unused get_frame_state() function (GH-31177)
The PyFrame_MAXFREELIST macro is no longer defined.
2022-02-07 01:25:44 +01:00
Mark Shannon da4d4ec185
Pass reference to func, as well as args, when pushing frame. (GH-31100) 2022-02-03 18:36:28 +00:00
Zackery Spytz b4bd1e1422
bpo-44977: Deprecate delegation of int to __trunc__ (GH-31031)
Calling int(a) when type(a) implements __trunc__ but not __int__
or __index__ now raises a DeprecationWarning.
2022-02-03 11:43:25 +02:00
Petr Viktorin 0ef0853012
bpo-46433: _PyType_GetModuleByDef: handle static types in MRO (GH-30696)
Automerge-Triggered-By: GH:encukou
2022-02-02 07:57:51 -08:00
Mark Shannon 187930f74c
bpo-46072: Add some frame stats. (GH-31060) 2022-02-02 11:01:33 +00:00
Mark Shannon 48be46ec1f
bpo-46072: Add some object layout and allocation stats (GH-31051) 2022-02-01 15:05:18 +00:00
Kumar Aditya b9ebde8db7
bpo-46564: do not create frame object for super object (GH-31002) 2022-02-01 21:40:46 +08:00
Ken Jin 768569325a
bpo-46407: Fix long_mod refleak (GH-31025) 2022-01-31 11:41:14 +01:00
Victor Stinner 9a24127113
bpo-46417: _PyStructSequence_FiniType() updates _Py_RefTotal (GH-30988) 2022-01-28 14:08:32 +01:00
Crowthebird f10dafc430
bpo-46407: Optimizing some modulo operations (GH-30653)
Added new internal functions to compute mod without also computing the quotient.

The loops can be leaner then, which leads to modestly but reliably faster execution in contexts that know they don't need the quotient.

Code by Jeremiah Vivian (Pascual).
2022-01-27 18:46:45 -06:00
Victor Stinner 18ea973c21
bpo-40170: Remove PyHeapType_GET_MEMBERS() macro (GH-30942)
Remove the PyHeapType_GET_MEMBERS() macro. It was exposed in the
public C API by mistake, it must only be used by Python internally.
Use the PyTypeObject.tp_members member instead.

Rename PyHeapType_GET_MEMBERS() to _PyHeapType_GET_MEMBERS() and move
it to the internal C API.
2022-01-28 00:39:52 +01:00
Victor Stinner 0575551f69
bpo-40170: Move _Py_GetAllocatedBlocks() to pycore_pymem.h (GH-30943)
Move _Py_GetAllocatedBlocks() and _PyObject_DebugMallocStats()
declarations to pycore_pymem.h. These functions are related to memory
allocators, not to the PyObject structure.
2022-01-27 21:23:22 +01:00
Christian Heimes 26b0482393
bpo-46476: Simplify and fix _PyStaticCode_Dealloc (GH-30965) 2022-01-27 19:32:12 +00:00
Kumar Aditya c7f810b34d
bpo-46476: Fix memory leak in code objects generated by deepfreeze (GH-30853)
Add _Py_Deepfreeze_Fini() and _PyStaticCode_Dealloc() functions.
2022-01-27 14:03:47 +01:00
Victor Stinner 6b491b9dc0
bpo-40170: Remove _Py_GetAllocatedBlocks() function (GH-30940)
Move _Py_GetAllocatedBlocks() and _PyObject_DebugMallocStats()
private functions to the internal C API.
2022-01-27 03:35:51 +01:00
Victor Stinner af32b3ef1f
bpo-40170: PyType_SUPPORTS_WEAKREFS() becomes a regular function (GH-30938)
Convert the PyType_SUPPORTS_WEAKREFS() macro to a regular function.
It no longer access the PyTypeObject.tp_weaklistoffset member
directly.

Add _PyType_SUPPORTS_WEAKREFS() static inline functions, used
internally by Python for best performance.
2022-01-27 03:00:55 +01:00
Jelle Zijlstra ac0c6e128c
bpo-46527: allow calling enumerate(iterable=...) again (GH-30904) 2022-01-27 00:46:48 +09:00
Tim Peters 7c26472d09
bpo-46504: faster code for trial quotient in x_divrem() (GH-30856)
* bpo-46504: faster code for trial quotient in x_divrem()

This brings x_divrem() back into synch with x_divrem1(), which was changed
in bpo-46406 to generate faster code to find machine-word division
quotients and remainders. Modern processors compute both with a single
machine instruction, but convincing C to exploit that requires writing
_less_ "clever" C code.
2022-01-24 19:06:00 -06:00
Irit Katriel 573b545157
bpo-46431: improve error message on invalid calls to BaseExceptionGroup.__new__ (GH-30854) 2022-01-24 21:47:40 +00:00
Mark Shannon 0367a36fdc
bpo-43683: Streamline YIELD_VALUE and SEND (GH-30723)
* Split YIELD_VALUE into ASYNC_GEN_WRAP; YIELD_VALUE for async generators.

* Split SEND into SEND; YIELD_VALUE.

* Document new opcodes.
2022-01-24 11:08:53 +00:00
Dong-hee Na 76dc047a0e
bpo-46481: Implement vectorcall for weakref.ref.__call__ method. (GH-30820) 2022-01-24 00:39:45 +09:00
Gregory P. Smith c7f20f1cc8
bpo-46406: Faster single digit int division. (#30626)
* bpo-46406: Faster single digit int division.

This expresses the algorithm in a more basic manner resulting in better
instruction generation by todays compilers.

See https://mail.python.org/archives/list/python-dev@python.org/thread/ZICIMX5VFCX4IOFH5NUPVHCUJCQ4Q7QM/#NEUNFZU3TQU4CPTYZNF3WCN7DOJBBTK5
2022-01-23 10:00:41 +00:00
Victor Stinner 976dec9b3b
bpo-46417: _PyList_Fini() clears indexerr (GH-30815)
_PyList_Fini() now clears the 'indexerr' error message.
2022-01-23 02:20:44 +01:00
Victor Stinner a1444f4358
bpo-46417: Fix _PyStaticType_Dealloc() (GH-30810)
_PyStaticType_Dealloc() now only calls PyObject_ClearWeakRefs()
if the call is not going to fail.
2022-01-23 00:32:05 +01:00
Victor Stinner 1626bf4ac7
bpo-46417: Clear Unicode static types at exit (GH-30806)
Add _PyUnicode_FiniTypes() function, called by
finalize_interp_types(). It clears these static types:

* EncodingMapType
* PyFieldNameIter_Type
* PyFormatterIter_Type

_PyStaticType_Dealloc() now does nothing if tp_subclasses
is not NULL.
2022-01-22 22:55:39 +01:00
Victor Stinner 621a45ccac
bpo-46417: Py_Finalize() clears static exceptioins (GH-30805)
The Py_Finalize() function now clears exceptions implemented as
static types.

Add _PyExc_FiniTypes() function, called by _PyExc_Fini().
2022-01-22 22:31:44 +01:00
Victor Stinner f1bcdeaca6
bpo-46417: Factorize _PyExc_InitTypes() code (GH-30804)
Add 'static_exceptions' list to factorize code between
_PyExc_InitTypes() and _PyBuiltins_AddExceptions().

_PyExc_InitTypes() does nothing if it's not the main interpreter.

Sort exceptions in Lib/test/exception_hierarchy.txt.
2022-01-22 21:48:56 +01:00
Victor Stinner 6cacdb4245
bpo-46417: _PyTypes_FiniTypes() clears object and type (GH-30798) 2022-01-22 19:31:24 +01:00
Victor Stinner 3a4c15bb98
bpo-46417: Cleanup typeobject.c code (GH-30795)
* Add comment to recurse_down_subclasses() explaining why it's safe
  to use a borrowed reference to tp_subclasses.
* remove_all_subclasses() no longer accept NULL cases
* type_set_bases() now relies on the fact that new_bases is not NULL.
* type_dealloc_common() avoids PyErr_Fetch/PyErr_Restore if tp_bases
  is NULL.
* remove_all_subclasses() makes sure that no exception is raised.
* Don't test at runtime if tp_mro only contains types: rely on
  _PyType_CAST() assertion for that.
* _PyStaticType_Dealloc() no longer clears tp_subclasses which is
  already NULL.
* mro_hierarchy() avoids calling _PyType_GetSubclasses() if
  tp_subclasses is NULL.

Coding style:

* Use Py_NewRef().
* Add braces and move variable declarations to the first variable
  assignement.
* Rename a few variables and parameters to use better names.
2022-01-22 18:56:11 +01:00
Victor Stinner 500c146387
bpo-46417: Clear more static types (GH-30796)
* Move PyContext static types into object.c static_types list.
* Rename PyContextTokenMissing_Type to _PyContextTokenMissing_Type
  and declare it in pycore_context.h.
* _PyHamtItems types are no long exported: replace PyAPI_DATA() with
  extern.
2022-01-22 18:55:48 +01:00
Victor Stinner 2d03b73cc9
bpo-46417: remove_subclass() clears tp_subclasses (GH-30793)
The remove_subclass() function now deletes the dictionary when
removing the last subclass (if the dictionary becomes empty) to save
memory: set PyTypeObject.tp_subclasses to NULL. remove_subclass() is
called when a type is deallocated.

_PyType_GetSubclasses() no longer holds a reference to tp_subclasses:
its loop cannot modify tp_subclasses.
2022-01-22 16:53:30 +01:00
Victor Stinner f1c6ae3270
bpo-46417: Fix race condition on setting type __bases__ (GH-30788)
Fix a race condition on setting a type __bases__ attribute: the
internal function add_subclass() now gets the
PyTypeObject.tp_subclasses member after calling PyWeakref_NewRef()
which can trigger a garbage collection which can indirectly modify
PyTypeObject.tp_subclasses.
2022-01-22 15:08:42 +01:00
Victor Stinner ac1f152421
bpo-46417: Use _PyType_CAST() in Objects directory (GH-30764) 2022-01-21 23:33:43 +01:00
Victor Stinner 8ee07dda13
bpo-46417: Add _PyType_GetSubclasses() function (GH-30761)
Add a new _PyType_GetSubclasses() function to get type's subclasses.

_PyType_GetSubclasses(type) returns a list which holds strong
refererences to subclasses. It is safer than iterating on
type->tp_subclasses which yields weak references and can be modified
in the loop.

_PyType_GetSubclasses(type) now holds a reference to the tp_subclasses
dict while creating the list of subclasses.

set_collection_flag_recursive() of _abc.c now uses
_PyType_GetSubclasses().
2022-01-21 23:29:10 +01:00
Victor Stinner bc67f189fd
bpo-46417: Add _PyType_CAST() macro (GH-30760)
In debug mode, the macro makes sure that its argument is a type using
an assertion.
2022-01-21 21:39:01 +01:00
Victor Stinner a1bf329bca
bpo-46417: Add missing types of _PyTypes_InitTypes() (GH-30749)
Add types removed by mistake by the commit adding
_PyTypes_FiniTypes().

Move also PyBool_Type at the end, since it depends on PyLong_Type.

PyBytes_Type and PyUnicode_Type no longer depend explicitly on
PyBaseObject_Type: it's the default of PyType_Ready().
2022-01-21 17:53:13 +01:00
Victor Stinner fda8886498
bpo-46417: Revert remove_subclass() change (GH-30750)
remove_subclass() doesn't clear the tp_subclasses dict if the dict
becomes empty.
2022-01-21 16:45:14 +01:00
Victor Stinner 595225e86d
bpo-46417: Py_Finalize() clears static types (GH-30743)
Add _PyTypes_FiniTypes() best-effort function to clear static types:
don't deallocate a type if it still has subclasses.

remove_subclass() now sets tp_subclasses to NULL when removing the
last subclass.
2022-01-21 13:06:34 +01:00
Victor Stinner 1781d55eb3
bpo-46417: _curses uses PyStructSequence_NewType() (GH-30736)
The _curses module now creates its ncurses_version type as a heap
type using PyStructSequence_NewType(), rather than using a static
type.

* Move _PyStructSequence_FiniType() definition to pycore_structseq.h.
* test.pythoninfo: log curses.ncurses_version.
2022-01-21 03:30:20 +01:00
Victor Stinner e9e3eab0b8
bpo-46417: Finalize structseq types at exit (GH-30645)
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()
2022-01-21 01:42:25 +01:00
Mark Shannon b04dfbbe4b
bpo-46409: Make generators in bytecode (GH-30633)
* Add RETURN_GENERATOR and JUMP_NO_INTERRUPT opcodes.

* Trim frame and generator by word each.

* Minor refactor of frame.c

* Update test.test_sys to account for smaller frames.

* Treat generator functions as normal functions when evaluating and specializing.
2022-01-20 11:46:39 +00:00
Joshua Bronson 2d10fa9bc4
docs: correct outdated MappingProxyType docstrings (#30281)
The docstrings for MappingProxyType's keys(), values(), and items()
methods were never updated to reflect the changes that Python 3 brought
to these APIs, namely returning views rather than lists.
2022-01-19 13:20:43 -08:00
Raymond Hettinger 243c31667c
bpo-42161: Hoist the _PyLong_GetOne() call out of the inner loop. (GH-30656) 2022-01-18 00:02:35 -08:00
Brandt Bucher 5cd9a162cd
bpo-46361: Fix "small" `int` caching (GH-30583) 2022-01-16 16:06:37 +00:00
Tim Peters fc05e6bfce
bpo-46020: Optimize long_pow for the common case (GH-30555)
This cuts a bit of overhead by not initializing the table of small
odd powers unless it's needed for a large exponent.
2022-01-12 12:55:02 -06:00
Eric Snow cf496d657a
bpo-45953: Statically allocate and initialize global bytes objects. (gh-30096)
The empty bytes object (b'') and the 256 one-character bytes objects were allocated at runtime init.  Now we statically allocate and initialize them.

https://bugs.python.org/issue45953
2022-01-11 09:37:24 -07:00
Dennis Sweeney ad1d5908ad
bpo-46235: Do all ref-counting at once during list/tuple multiplication (GH-30346)
When multiplying lists and tuples by `n`, increment each element's refcount, by `n`, just once.

Saves `n-1` increments per element, and allows for a leaner & faster copying loop.

Code by  sweeneyde (Dennis Sweeney).
2022-01-07 21:47:58 -06:00
Victor Stinner 35d6540c90
bpo-46006: Revert "bpo-40521: Per-interpreter interned strings (GH-20085)" (GH-30422)
This reverts commit ea251806b8.

Keep "assert(interned == NULL);" in _PyUnicode_Fini(), but only for
the main interpreter.

Keep _PyUnicode_ClearInterned() changes avoiding the creation of a
temporary Python list object.
2022-01-06 08:53:44 +01:00
Inada Naoki 46e4c257e7
bpo-46236: Fix PyFunction_GetAnnotations() returned tuple. (GH-30409)
Automerge-Triggered-By: GH:pablogsal
2022-01-05 04:25:54 -08:00
Brandt Bucher 31e43cbe5f
bpo-46009: Remove GEN_START (GH-30367) 2022-01-04 11:38:32 -08:00
Irit Katriel a94461d718
bpo-46202: Remove opcode POP_EXCEPT_AND_RERAISE (GH-30302)
* bpo-46202: remove opcode POP_EXCEPT_AND_RERAISE

* do not assume that an exception group is truthy
2022-01-04 10:37:12 +00:00
Tim Peters 3aa5242b54
bpo-46233: Minor speedup for bigint squaring (GH-30345)
x_mul()'s squaring code can do some redundant and/or useless
work at the end of each digit pass. A more careful analysis
of worst-case carries at various digit positions allows
making that code leaner.
2022-01-03 20:41:16 -06:00
Irit Katriel 65e7c1f90e
bpo-46219, 46221: simplify except* implementation following exc_info changes. Move helpers to exceptions.c. Do not assume that exception groups are truthy. (GH-30289) 2022-01-02 23:22:42 +00:00
Tim Peters 863729e9c6
bpo-46218: Change long_pow() to sliding window algorithm (GH-30319)
* bpo-46218: Change long_pow() to sliding window algorithm

The primary motivation is to eliminate long_pow's reliance on that the number of bits in a long "digit" is a multiple of 5. Now it no longer cares how many bits are in a digit.

But the sliding window approach also allows cutting the precomputed table of small powers in half, which reduces initialization overhead enough that the approach pays off for smaller exponents too. Depending on exponent bit patterns, a sliding window may also be able to save some bigint multiplies (sometimes when at least 5 consecutive exponent bits are 0, regardless of their starting bit position modulo 5).

Note: boosting the window width to 6 didn't work well overall. It give marginal speed improvements for huge exponents, but the increased overhead (the small-power table needs twice as many entries) made it a loss for smaller exponents.

Co-authored-by: Oleg Iarygin <dralife@yandex.ru>
2022-01-02 13:18:20 -06:00
Dong-hee Na fb44d05896
bpo-46085: Fix iterator cache mechanism of OrderedDict. (GH-30290) 2021-12-30 12:35:45 +09:00
Xinhang Xu 3581c7abbe
bpo-46055: Speed up binary shifting operators (GH-30044)
Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
2021-12-27 18:36:55 +00:00
Mark Dickinson 360fedc2d2
bpo-46055: Streamline inner loop for right shifts (#30243) 2021-12-27 18:04:36 +00:00
Serhiy Storchaka ad4857884b
bpo-43413: Revert changes in set.__init__ (GH-28403)
Co-authored-by: Jason R. Coombs <jaraco@jaraco.com>
2021-12-26 13:27:01 +02:00
David Hewitt 31ff96712e
bpo-46140: take more Py_buffer arguments as const * (GH-30217) 2021-12-22 15:07:46 +02:00
Irit Katriel c66fc0fb53
bpo-46107: ExceptionGroup.subgroup()/split() should copy __note__ to the parts (GH-30159) 2021-12-21 10:12:26 +00:00
Raymond Hettinger 29ea68bd1d
Revert "bpo-46131: add fastpath for PyFloat_Check() (GH-30200)" (GH-30208)
This reverts commit 2ef06d4125.
2021-12-19 15:05:46 -06:00
Matti Picus 2ef06d4125
bpo-46131: add fastpath for PyFloat_Check() (#30200) 2021-12-19 14:24:30 -06:00
Irit Katriel 396b58345f
bpo-45711: Remove type and traceback from exc_info (GH-30122)
* Do not PUSH/POP traceback or type to the stack as part of exc_info

* Remove exc_traceback and exc_type from _PyErr_StackItem

* Add to what's new, because this change breaks things like Cython
2021-12-17 14:46:22 +00:00
Mark Shannon 0b50a4f0cd
bpo-46039: Split yield from in two (GH-30035)
* Split YIELD_FROM opcode into SEND and JUMP_ABSOLUTE.

* Remove YIELD_FROM opcode.
2021-12-15 10:30:09 +00:00
Mark Shannon 9f8f45144b
bpo-44525: Split calls into PRECALL and CALL (GH-30011)
* 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.
2021-12-14 18:22:44 +00:00
Irit Katriel d60457a667
bpo-45292: [PEP-654] add except* (GH-29581) 2021-12-14 16:48:15 +00:00
Eric Snow 121f1f893a
bpo-45953: Statically initialize the small ints. (gh-30092)
The array of small PyLong objects has been statically declared. Here I also statically initialize them. Consequently they are no longer initialized dynamically during runtime init.

I've also moved them under a new sub-struct in _PyRuntimeState, in preparation for static allocation and initialization of other global objects.

https://bugs.python.org/issue45953
2021-12-13 18:04:05 -07:00
Georg Brandl f4095e53ab
bpo-45855: document that `no_block` has no use anymore in PyCapsule_Import (#29665) 2021-12-12 10:49:50 +01:00
Kumar Aditya 41026c3155
bpo-45855: Replaced deprecated `PyImport_ImportModuleNoBlock` with PyImport_ImportModule (GH-30046) 2021-12-12 10:45:20 +02:00
Eric Snow c8749b5783
bpo-46008: Make runtime-global object/type lifecycle functions and state consistent. (gh-29998)
This change is strictly renames and moving code around.  It helps in the following ways:

* ensures type-related init functions focus strictly on one of the three aspects (state, objects, types)
* passes in PyInterpreterState * to all those functions, simplifying work on moving types/objects/state to the interpreter
* consistent naming conventions help make what's going on more clear
* keeping API related to a type in the corresponding header file makes it more obvious where to look for it

https://bugs.python.org/issue46008
2021-12-09 12:59:26 -07:00
Andrew Svetlov d4363d2140
bpo-45813: Drop redundant assertion from frame.clear() (GH-29990)
* bpo-45813: Drop redundant assertion from frame.clear()

* Move assertion to frame_dealloc()
2021-12-08 16:05:00 +00:00
Mark Shannon 69806b9516
bpo-46009: Do not exhaust generator when send() method raises (GH-29986) 2021-12-08 12:09:26 +00:00
Mark Shannon 8319114fee
bpo-45947: Place dict and values pointer at fixed (negative) offset just before GC header. (GH-29879)
* Place __dict__ immediately before GC header for plain Python objects.

* Fix up lazy dict creation logic to use managed dict pointers.

* Manage values pointer, placing them directly before managed dict pointers.

* Convert hint-based load/store attr specialization target managed dict classes.

* Specialize LOAD_METHOD for managed dict objects.

* Remove unsafe _PyObject_GC_Calloc function.

* Remove unsafe _PyObject_GC_Malloc() function.

* Add comment explaning use of Py_TPFLAGS_MANAGED_DICT.
2021-12-07 16:02:53 +00:00
Mark Shannon 299483c95d
bpo-45963: Make space for the InterpreterFrame of a generator in that generator. (GH-29891)
* Make generator, coroutine and async gen structs all the same size.

* Store interpreter frame in generator (and coroutine). Reduces the number of allocations neeeded for a generator from two to one.
2021-12-06 10:13:49 +00:00
Irit Katriel 5bb7ef2768
bpo-45607: Make it possible to enrich exception displays via setting their __note__ field (GH-29880) 2021-12-03 22:01:15 +00:00
Dennis Sweeney 03768c4d13
bpo-45885: Specialize COMPARE_OP (GH-29734)
* Add COMPARE_OP_ADAPTIVE adaptive instruction.

* Add COMPARE_OP_FLOAT_JUMP, COMPARE_OP_INT_JUMP and COMPARE_OP_STR_JUMP specialized instructions.

* Introduce and use _PyUnicode_Equal
2021-12-03 11:29:12 +00:00
Victor Stinner a6c3b0faa1
bpo-45954: Rename PyConfig.no_debug_ranges to code_debug_ranges (GH-29886)
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.
2021-12-02 11:43:37 +01:00
Mark Shannon 60929576e4
bpo-45786: Allocate space for frame in frame object. (GH-29729) 2021-11-29 12:34:59 +00:00
Steve Dower db55f3faba
bpo-44530: Reverts a change to the 'code.__new__' audit event (GH-29809) 2021-11-27 00:26:45 +00:00
Dong-hee Na db671b010c
bpo-45760: Remove PyNumber_InMatrixMultiply (GH-29751) 2021-11-26 23:10:10 +09:00
Mark Shannon 135cabd328
bpo-44525: Copy free variables in bytecode to allow calls to inner functions to be specialized (GH-29595)
* Make internal APIs that take PyFrameConstructor take a PyFunctionObject instead.

* Add reference to function to frame, borrow references to builtins and globals.

* Add COPY_FREE_VARS instruction to allow specialization of calls to inner functions.
2021-11-23 09:53:24 +00:00
Mark Shannon 7fd92a8b7e
bpo-45813: Make sure that frame->generator is NULLed when generator is deallocated. (GH-29700) 2021-11-22 14:01:23 +00:00
Dennis Sweeney 036fead695
bpo-45609: Specialize STORE_SUBSCR (GH-29242)
* Specialize STORE_SUBSCR for list[int], and dict[object]

* Adds _PyDict_SetItem_Take2 which consumes references to the key and values.
2021-11-19 10:30:37 +00:00
Dong-hee Na 345ba3f080
bpo-45510: Specialize BINARY_SUBTRACT (GH-29523) 2021-11-18 09:19:58 +00:00
Brandt Bucher 6a84d61c55
bpo-45636: Simplify BINARY_OP (GH-29565) 2021-11-16 05:53:57 -08:00
Christian Heimes cbab997efb
bpo-45723: Prepare support for autoconf 2.71 (GH-29441) 2021-11-08 19:31:14 +01:00
Mark Dickinson 9127520729
bpo-45392: Update the docstring of the 'type' built-in (GH-29439) 2021-11-06 20:08:44 +01:00
Itamar Ostricher 2c045bd567
bpo-45697: Use PyObject_TypeCheck in type_call (GH-29392) 2021-11-04 12:39:50 +02:00
Mark Shannon acc89db923
bpo-45691: Make array of small ints static to fix use-after-free error. (GH-29366) 2021-11-03 16:22:32 +00:00
Mark Shannon 4fc68560ea
Store actual ints, not pointers to them in the interpreter state. (GH-29274) 2021-10-28 17:35:43 +01:00
Mark Shannon 7f61d9d848
bpo-45256: Rationalize code around Python-to-Python calls a bit. (GH-29235) 2021-10-28 16:14:59 +01:00
Mark Shannon f291404a80
bpo-45637: Store the frame pointer in the cframe (GH-29267)
* Rename 'frame' to 'current_frame'
2021-10-28 13:59:11 +01:00
Tim Peters 51ed2c56a1
bpo-45530: speed listobject.c's unsafe_tuple_compare() (GH-29076)
Keep track of whether unsafe_tuple_compare() calls are resolved by the very
first tuple elements, and adjust strategy accordingly. This can significantly
cut the number of calls made to the full-blown PyObject_RichCompareBool(),
and especially when duplicates are rare.

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
2021-10-24 22:27:24 -05:00
Irit Katriel f30ad65dbf
bpo-45292: [PEP 654] add the ExceptionGroup and BaseExceptionGroup classes (GH-28569) 2021-10-23 00:13:46 +01:00
Dennis Sweeney 423fa1c181
bpo-30570: Use Py_EnterRecursiveCall() in issubclass() (GH-29048)
* Use Py_EnterRecursiveCall() in issubclass()

Reviewed-by: Gregory P. Smith <greg@krypto.org> [Google]
2021-10-22 14:24:08 -07:00
Dong-hee Na 83f202a802
bpo-43706: Use PEP 590 vectorcall to speed up enumerate() (GH-25154) 2021-10-22 08:20:43 +09:00
Neil Schemenauer 0224b7180b
bpo-45526: obmalloc radix use 64 addr bits (GH-29062)
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
2021-10-21 23:05:46 +02:00
Neil Schemenauer 311910b31a
bpo-45521: Fix a bug in the obmalloc radix tree code. (GH-29051)
MAP_BOT_LENGTH was incorrectly used to compute MAP_TOP_MASK instead of
MAP_TOP_LENGTH. On 64-bit machines, the error causes the tree to hold
46-bits of virtual addresses, rather than the intended 48-bits.
2021-10-21 06:38:36 -07:00
Christian Heimes 9942f42a93
bpo-45522: Allow to disable freelists on build time (GH-29056)
Freelists for object structs can now be disabled. A new ``configure``
option ``--without-freelists`` can be used to disable all freelists
except empty tuple singleton. Internal Py*_MAXFREELIST macros can now
be defined as 0 without causing compiler warnings and segfaults.

Signed-off-by: Christian Heimes <christian@python.org>
2021-10-21 06:12:20 -07:00
Petr Viktorin 8a310dd5f4
bpo-45315: PyType_FromSpec: Copy spec->name and have the type own the memory for its name (GH-29103) 2021-10-21 11:46:20 +02:00
Victor Stinner 5f09bb021a
bpo-35134: Add Include/cpython/longobject.h (GH-29044)
Move Include/longobject.h non-limited API to a new
Include/cpython/longobject.h header file.

Move the following definitions to the internal C API:

* _PyLong_DigitValue
* _PyLong_FormatAdvancedWriter()
* _PyLong_FormatWriter()
2021-10-19 02:04:52 +02:00
Mark Shannon 70945d57e7
bpo-45256: Avoid C calls for most Python to Python calls. (GH-28937)
* Avoid making C calls for most calls to Python functions.

* Change initialize_locals(steal=true) and _PyTuple_FromArraySteal to consume the argument references regardless of whether they succeed or fail.
2021-10-18 09:57:24 +01:00
Victor Stinner 354c35220d
bpo-45482: Rename namespaceobject.h to pycore_namespace.h (GH-28975)
Rename Include/namespaceobject.h to
Include/internal/pycore_namespace.h.

The _testmultiphase extension is now built with the
Py_BUILD_CORE_MODULE macro defined to access _PyNamespace_Type.

object.c: remove unused "pycore_context.h" include.
2021-10-15 15:21:21 +02:00
Victor Stinner 063abd931f
bpo-35081: Move interpreteridobject.h to Include/internal/ (GH-28969)
Move the interpreteridobject.h header file from Include/ to
Include/internal/. It only provides private functions.
2021-10-15 11:56:34 +02:00
Victor Stinner 8e5de40f90
bpo-35134: Move classobject.h to Include/cpython/ (GH-28968)
Move classobject.h, context.h, genobject.h and longintrepr.h header
files from Include/ to Include/cpython/.

Remove redundant "#ifndef Py_LIMITED_API" in context.h.

Remove explicit #include "longintrepr.h" in C files. It's not needed,
Python.h already includes it.
2021-10-15 09:46:29 +02:00
Benjamin Peterson 9ce9cfe595
bpo-45479: Futher simplify Py_UniversalNewlineFgets. (GH-28967)
Thank you to Eryk Sun for the suggestions in https://github.com/python/cpython/pull/28965#discussion_r729527143.
2021-10-14 23:10:52 -07:00
Benjamin Peterson 160c38df7f
closes bpo-45479: Degunkify Py_UniversalNewlineFgets. (GH-28965)
Remove dead variables and control flow.
2021-10-14 21:28:52 -07:00
Victor Stinner 0a883a76cd
bpo-35134: Add Include/cpython/floatobject.h (GH-28957)
Split Include/floatobject.h into sub-files: add
Include/cpython/floatobject.h and
Include/internal/pycore_floatobject.h.
2021-10-14 23:41:06 +02:00
Victor Stinner 3cc56c828d
bpo-45439: Move _PyObject_VectorcallTstate() to pycore_call.h (GH-28893)
* Move _PyObject_VectorcallTstate() and _PyObject_FastCallTstate() to
  pycore_call.h (internal C API).
* Convert PyObject_CallOneArg(), PyObject_Vectorcall(),
  _PyObject_FastCall() and PyVectorcall_Function() static inline
  functions to regular functions.
* Add _PyVectorcall_FunctionInline() static inline function.
* PyObject_Vectorcall(), _PyObject_FastCall(), and
  PyObject_CallOneArg() now call _PyThreadState_GET() rather
  than PyThreadState_Get().
2021-10-14 21:53:04 +02:00
Serhiy Storchaka 39aa98346d
bpo-45467: Fix IncrementalDecoder and StreamReader in the "raw-unicode-escape" codec (GH-28944)
They support now splitting escape sequences between input chunks.

Add the third parameter "final" in codecs.raw_unicode_escape_decode().
It is True by default to match the former behavior.
2021-10-14 20:04:19 +03:00
Dennis Sweeney 3b3d30e8f7
bpo-45367: Specialize BINARY_MULTIPLY (GH-28727) 2021-10-14 15:56:33 +01:00
Serhiy Storchaka c96d1546b1
bpo-45461: Fix IncrementalDecoder and StreamReader in the "unicode-escape" codec (GH-28939)
They support now splitting escape sequences between input chunks.

Add the third parameter "final" in codecs.unicode_escape_decode().
It is True by default to match the former behavior.
2021-10-14 13:17:00 +03:00
Victor Stinner aac29af678
bpo-45434: pyport.h no longer includes <stdlib.h> (GH-28914)
Include <stdlib.h> explicitly in C files.

Python.h includes <wchar.h>.
2021-10-13 19:25:53 +02:00
Victor Stinner bbe7497c5a
bpo-45434: Remove pystrhex.h header file (GH-28923)
Move Include/pystrhex.h to Include/internal/pycore_strhex.h.
The header file only contains private functions.

The following C extensions are now built with Py_BUILD_CORE_MODULE
macro defined to get access to the internal C API:

* _blake2
* _hashopenssl
* _md5
* _sha1
* _sha3
* _ssl
* binascii
2021-10-13 15:22:35 +02:00
Mark Shannon a8b9350964
bpo-45340: Don't create object dictionaries unless actually needed (GH-28802)
* Never change types' cached keys. It could invalidate inline attribute objects.

* Lazily create object dictionaries.

* Update specialization of LOAD/STORE_ATTR.

* Don't update shared keys version for deletion of value.

* Update gdb support to handle instance values.

* Rename SPLIT_KEYS opcodes to INSTANCE_VALUE.
2021-10-13 14:19:34 +01:00
Victor Stinner 7cdc2a0f4b
pycore_pystate.h no longer redefines PyThreadState_GET() (GH-28921)
Redefining the PyThreadState_GET() macro in pycore_pystate.h is
useless since it doesn't affect files not including it. Either use
_PyThreadState_GET() directly, or don't use pycore_pystate.h internal
C API. For example, the _testcapi extension don't use the internal C
API, but use the public PyThreadState_Get() function instead.

Replace PyThreadState_Get() with _PyThreadState_GET(). The
_PyThreadState_GET() macro is more efficient than PyThreadState_Get()
and PyThreadState_GET() function calls which call fail with a fatal
Python error.

posixmodule.c and _ctypes extension now include <windows.h> before
pycore header files (like pycore_call.h).

_PyTraceback_Add() now uses _PyErr_Fetch()/_PyErr_Restore() instead
of PyErr_Fetch()/PyErr_Restore().

The _decimal and _xxsubinterpreters extensions are now built with the
Py_BUILD_CORE_MODULE macro defined to get access to the internal C
API.
2021-10-13 14:09:13 +02:00
Victor Stinner d943d19172
bpo-45439: Move _PyObject_CallNoArgs() to pycore_call.h (GH-28895)
* Move _PyObject_CallNoArgs() to pycore_call.h (internal C API).
* _ssl, _sqlite and _testcapi extensions now call the public
  PyObject_CallNoArgs() function, rather than _PyObject_CallNoArgs().
* _lsprof extension is now built with Py_BUILD_CORE_MODULE macro
  defined to get access to internal _PyObject_CallNoArgs().
2021-10-12 08:38:19 +02:00
Victor Stinner ce3489cfdb
bpo-45439: Rename _PyObject_CallNoArg() to _PyObject_CallNoArgs() (GH-28891)
Fix typo in the private _PyObject_CallNoArg() function name: rename
it to _PyObject_CallNoArgs() to be consistent with the public
function PyObject_CallNoArgs().
2021-10-12 00:42:23 +02:00
Victor Stinner fb8f208a4d
bpo-45439: _PyObject_Call() only checks tp_vectorcall_offset once (GH-28890)
Add _PyVectorcall_Call() helper function.

Add "assert(PyCallable_Check(callable));" to PyVectorcall_Call(),
similar check than PyVectorcall_Function().
2021-10-12 00:18:26 +02:00
Victor Stinner 2f92e2a590
bpo-45412: Remove Py_SET_ERRNO_ON_MATH_ERROR() macro (GH-28820)
Remove the following math macros using the errno variable:

* Py_ADJUST_ERANGE1()
* Py_ADJUST_ERANGE2()
* Py_OVERFLOWED()
* Py_SET_ERANGE_IF_OVERFLOW()
* Py_SET_ERRNO_ON_MATH_ERROR()

Create pycore_pymath.h internal header file.

Rename Py_ADJUST_ERANGE1() and Py_ADJUST_ERANGE2() to
_Py_ADJUST_ERANGE1() and _Py_ADJUST_ERANGE2(), and convert these
macros to static inline functions.

Move the following macros to pycore_pymath.h:

* _Py_IntegralTypeSigned()
* _Py_IntegralTypeMax()
* _Py_IntegralTypeMin()
* _Py_InIntegralTypeRange()
2021-10-11 21:00:25 +02:00
Pablo Galindo Salgado b4903afd4d
bpo-45256: Remove the usage of the C stack in Python to Python calls (GH-28488)
Ths commit inlines calls to Python functions in the eval loop and steals all the arguments in the call from the caller for
performance.
2021-10-09 16:51:30 +01:00
Dong-hee Na e6ff4eba6d
bpo-45385: Fix reference leak from descr_check (#28719) 2021-10-07 09:51:56 +09:00
Christian Clauss 5f401f1040
Fix typos in the Objects directory (GH-28766) 2021-10-06 16:57:10 -07:00
Mark Shannon a7252f88d3
bpo-40116: Add insertion order bit-vector to dict values to allow dicts to share keys more freely. (GH-28520) 2021-10-06 13:19:53 +01:00
Serhiy Storchaka 252b7bcb23
bpo-45355: More use of sizeof(_Py_CODEUNIT) (GH-28720) 2021-10-04 14:11:26 +03:00
Serhiy Storchaka 60b9e040c9
bpo-45355: Use sizeof(_Py_CODEUNIT) instead of literal 2 for the size of the code unit (GH-28711) 2021-10-03 21:22:42 +03:00
Raymond Hettinger dc878240dc
Fix spelling error in comment (GH-28696) 2021-10-02 13:52:05 -05:00
Victor Stinner 8620be99da
bpo-45061: Revert unicode_is_singleton() change (GH-28516)
Don't use a loop over 256 items, only checks for a single singleton.
2021-09-22 12:16:53 +02:00
Mohamad Mansour 8f943ca257
[codemod] Fix non-matching bracket pairs (GH-28473)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
2021-09-22 01:09:00 +02:00
Victor Stinner 86f28372b1
bpo-45061: Detect refcount bug on empty string singleton (GH-28504)
Detect refcount bugs in C extensions when the empty Unicode string
singleton is destroyed by mistake.

* Move forward declarations to the top of unicodeobject.c.
* Simplifiy unicode_is_singleton().
2021-09-21 23:43:09 +02:00
Victor Stinner 79a3148099
bpo-45061: Detect refcount bug on empty tuple singleton (GH-28503)
Detect refcount bugs in C extensions when the empty tuple singleton
is destroyed by mistake.

Add the _Py_FatalRefcountErrorFunc() function.
2021-09-21 23:04:34 +02:00
Serhiy Storchaka f25f2e2e8c
Clean up initialization __class_getitem__ with Py_GenericAlias. (GH-28450)
The cast to PyCFunction is redundant. Overuse of redundant casts
can hide actual bugs.
2021-09-19 18:05:30 +03:00
Raymond Hettinger 94b462686b
bpo-45198: __set_name__ documentation not clear about its usage with non-descriptor classes (GH-28439) 2021-09-18 01:49:43 -05:00
wyz23x2 f4813388b4
bpo-44640: Improve punctuation consistency in isinstance/issubclass error messages (GH-27144)
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
2021-09-18 01:10:17 +02:00
Mark Shannon 064464fc38
bpo-45219: Factor dictkey indexing (GH-28389) 2021-09-17 12:20:51 +01:00
Barry Warsaw 07e737d002
bpo-45155 : Default arguments for int.to_bytes(length=1, byteorder=sys.byteorder) (#28265)
Add default arguments for int.to_bytes() and int.from_bytes()

Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
2021-09-15 19:55:24 -07:00
Serhiy Storchaka 5dce51a887
bpo-45167: Fix deepcopying of GenericAlias (GH-28324) 2021-09-15 20:25:41 +02:00
Benjamin Peterson 024fda47d4
closes bpo-45190: Update Unicode data to version 14.0.0. (GH-28336) 2021-09-14 11:00:38 -07:00
Serhiy Storchaka 92bf8691fb
bpo-43413: Fix handling keyword arguments in subclasses of some buitin classes (GH-26456)
* Constructors of subclasses of some buitin classes (e.g. tuple, list,
  frozenset) no longer accept arbitrary keyword arguments.
* Subclass of set can now define a __new__() method with additional
  keyword parameters without overriding also __init__().
2021-09-12 13:27:50 +03:00
Victor Stinner fb305092a5
bpo-44348: BaseException deallocator uses trashcan (GH-28190)
The deallocator function of the BaseException type now uses the
trashcan mecanism to prevent stack overflow. For example, when a
RecursionError instance is raised, it can be linked to another
RecursionError through the __context__ attribute or the __traceback__
attribute, and then a chain of exceptions is created. When the chain
is destroyed, nested deallocator function calls can crash with a
stack overflow if the chain is too long compared to the available
stack memory.
2021-09-07 15:42:11 +02:00
Yury Selivanov 2c3474a637
bpo-45123: PyAiter_Check and PyObject_GetAiter fix & rename. (GH-28194)
Fix PyAiter_Check to only check for the `__anext__` presense (not for
`__aiter__`). Rename `PyAiter_Check()` to `PyAIter_Check()`,
`PyObject_GetAiter()` -> `PyObject_GetAIter()`.

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
2021-09-07 11:52:30 +01:00
Pablo Galindo Salgado 533e725821
bpo-44963: Implement send() and throw() methods for anext_awaitable objects (GH-27955)
Co-authored-by: Yury Selivanov <yury@edgedb.com>
2021-09-07 11:30:14 +01:00
Tim Peters 5cb4c672d8
bpo-34561: Switch to Munro & Wild "powersort" merge strategy. (#28108)
For list.sort(), replace our ad hoc merge ordering strategy with the principled, elegant,
and provably near-optimal one from Munro and Wild's "powersort".
2021-09-06 12:54:41 -05:00
Serhiy Storchaka 936f6a16b9
bpo-45030: Fix integer overflow in __reduce__ of the range iterator (GH-28000)
It happened with fast range iterator  when the calculated stop = start + step * len
was out of the C long range.
2021-09-04 21:02:21 +03:00
Victor Stinner 4300352000
bpo-45061: Detect Py_DECREF(Py_True) bug (GH-28089)
Add a deallocator to the bool type to detect refcount bugs in C
extensions which call Py_DECREF(Py_True) or Py_DECREF(Py_False) by
mistake.
2021-08-31 18:05:15 +02:00
chilaxan 94a3d2a632
bpo-45018: Fix rangeiter_reduce in rangeobject.c (GH-27938)
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
2021-08-27 12:27:19 +02:00
Mark Shannon d3eaf0cc5b
bpo-44945: Specialize BINARY_ADD (GH-27967) 2021-08-27 09:21:01 +01:00
Mark Shannon 15d50d7ed8
bpo-44946: Streamline operators and creation of ints for common case of single 'digit'. (GH-27832) 2021-08-25 14:28:43 +01:00
Mark Shannon f9242d50b1
bpo-44990: Change layout of evaluation frames. "Layout B" (GH-27933)
Places the locals between the specials and stack. This is the more "natural" layout for a C struct, makes the code simpler and gives a slight speedup (~1%)
2021-08-25 13:44:20 +01:00
Mark Dickinson ae5259171b
Fix bytes.__bytes__ to not truncate at a zero byte (GH-27902) 2021-08-23 15:24:12 +01:00
Dong-hee Na 24b63c695a
bpo-24234: Implement bytes.__bytes__ (GH-27901) 2021-08-23 19:01:51 +09:00
Mark Dickinson 6082bb5add
bpo-24234: implement complex.__complex__ (GH-27887)
Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>
2021-08-23 09:15:49 +01:00
Mark Dickinson 60b93d9e49
bpo-44954: Fix wrong result in float.fromhex corner case (GH-27834) 2021-08-20 11:40:11 +01:00
Mark Dickinson 4b9a2dcf19
bpo-44698: Restore complex pow behaviour for small integral exponents (GH-27772) 2021-08-17 17:51:28 +01:00
Hai Shi 3e2c643ae0
bpo-42035: Add PyType_GetQualName() to get a type's qualified name. (GH-27551) 2021-08-17 15:39:34 +02:00
Guido van Rossum 62bd97303e
Fix a SystemError in code.replace() (#27771)
While the comment said 'We don't bother resizing localspluskinds',
this would cause .replace() to crash when it happened.
(Also types.CodeType(), but testing that is tedious, and this tests all
code paths.)
2021-08-16 11:34:23 -07:00
Mark Shannon 1a511dc92d
bpo-44914: Maintain invariants of type version tags. (GH-27773)
* Do not invalidate type versions unnecessarily.
2021-08-16 12:21:34 +01:00
Pablo Galindo Salgado bfc2d5a5c4
bpo-33930: Fix segfault with deep recursion when cleaning method objects (GH-27678) 2021-08-11 00:34:14 +01:00
Serhiy Storchaka 058fb35b57
bpo-44854: Remove trailing whitespaces (GH-27689) 2021-08-09 21:32:54 +03:00
Irit Katriel 7d14fdb03c
bpo-44872: use new trashcan macros in framobject.c (#27683) 2021-08-09 18:11:38 +01:00
Mark Shannon ac75f6bdd4
bpo-44826: Specialize STORE_ATTR (GH-27590)
* Generalize cache names for LOAD_ATTR to allow store and delete specializations.

* Factor out specialization of attribute dictionary access.

* Specialize STORE_ATTR.
2021-08-09 10:40:21 +01:00
Mark Shannon cee67fa661
bpo-44821: Eagerly assign __dict__ for new objects. (GH-27589) 2021-08-04 16:41:14 +01:00
Serhiy Storchaka 8c9f847997
bpo-27275: Change popitem() and pop() methods of collections.OrderedDict (GH-27530)
* Unify the C and Python implementations of OrderedDict.popitem().

The C implementation no longer calls ``__getitem__`` and ``__delitem__``
methods of the OrderedDict subclasses.

* Change popitem() and pop() methods of collections.OrderedDict

For consistency with dict both implementations (pure Python and C)
of these methods in OrderedDict no longer call __getitem__ and
__delitem__ methods of the OrderedDict subclasses.

Previously only the Python implementation of popitem() did not
call them.
2021-08-03 13:00:55 +02:00
Mark Shannon e06ae75e16
bpo-44206: Make sure that dict-keys's version is set to zero when value is popped (GH-27542) 2021-08-02 14:54:23 +01:00
Yurii Karabas 8182c8329c
bpo-44662: Add ability to annotate types.Union (#27214)
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
2021-07-29 21:44:48 +02:00
Serhiy Storchaka e5c8ddb171
bpo-44707: Fix an undefined behavior of the null pointer arithmetic (GH-27292) 2021-07-29 12:36:24 +01:00
Inada Naoki ce5e1a6809
bpo-41103: Resurrect the old buffer protocol. (GH-27437)
Revert "bpo-41103: Remove old buffer protocol support (#21117)"

This reverts commit 6f8a6ee59c.
2021-07-29 12:46:47 +02:00