Commit Graph

218 Commits

Author SHA1 Message Date
Guido van Rossum 48b069a003
bpo-39481: Implementation for PEP 585 (#18239)
This implements things like `list[int]`,
which returns an object of type `types.GenericAlias`.
This object mostly acts as a proxy for `list`,
but has attributes `__origin__` and `__args__`
that allow recovering the parts (with values `list` and `(int,)`.

There is also an approximate notion of type variables;
e.g. `list[T]` has a `__parameters__` attribute equal to `(T,)`.
Type variables are objects of type `typing.TypeVar`.
2020-04-07 09:50:06 -07:00
Dong-hee Na 87ec86c425
bpo-37207: Add _PyArg_NoKwnames() helper function (GH-18980) 2020-03-16 15:06:20 +01:00
Dong-hee Na c98f87fc33
bpo-37207: Use _PyArg_CheckPositional() for tuple vectorcall (GH-18986) 2020-03-16 15:04:14 +01:00
Hai Shi c81609e44e
Fix a possible refleak in tupleobject.c (GH-19018) 2020-03-15 19:37:49 +00:00
Dong-hee Na 9ee88cde1a
bpo-37207: Use PEP 590 vectorcall to speed up tuple() (GH-18936)
Master:

./python.exe -m pyperf timeit "tuple((1, 2, 3, 4, 5))"
Mean +- std dev: 361 ns +- 15 ns

PEP-590:

./python.exe -m pyperf timeit "tuple((1, 2, 3, 4, 5))"
Mean +- std dev: 203 ns +- 13 ns
2020-03-13 14:57:00 +01:00
Andy Lester 557287075c
bpo-39573: Use Py_IS_TYPE() macro to check for types (GH-18809)
Co-authored-by: Victor Stinner <vstinner@python.org>
2020-03-06 23:53:17 +01:00
Andy Lester dffe4c0709
bpo-39573: Finish converting to new Py_IS_TYPE() macro (GH-18601) 2020-03-04 14:15:20 +01:00
Victor Stinner a93c51e3a8
bpo-39573: Use Py_REFCNT() macro (GH-18388)
Replace direct acccess to PyObject.ob_refcnt with usage of the
Py_REFCNT() macro.
2020-02-07 00:38:59 +01:00
Victor Stinner 49932fec62
bpo-39542: Simplify _Py_NewReference() (GH-18332)
* Remove _Py_INC_REFTOTAL and _Py_DEC_REFTOTAL macros: modify
  directly _Py_RefTotal.
* _Py_ForgetReference() is no longer defined if the Py_TRACE_REFS
  macro is not defined.
* Remove _Py_NewReference() implementation from object.c:
  unify the two implementations in object.h inline function.
* Fix Py_TRACE_REFS build: _Py_INC_TPALLOCS() macro has been removed.
2020-02-03 17:55:04 +01:00
Victor Stinner c6e5c1123b
bpo-39489: Remove COUNT_ALLOCS special build (GH-18259)
Remove:

* COUNT_ALLOCS macro
* sys.getcounts() function
* SHOW_ALLOC_COUNT code in listobject.c
* SHOW_TRACK_COUNT code in tupleobject.c
* PyConfig.show_alloc_count field
* -X showalloccount command line option
* @test.support.requires_type_collecting decorator
2020-02-03 15:17:15 +01:00
Sergey Fedoseev 755d4ef824 Correct overflow check in PyTuple_New() (GH-14838) 2019-09-09 13:40:58 -07:00
Zackery Spytz 60bd1f88f2 bpo-36030: Fix a possible segfault in PyTuple_New() (GH-15670) 2019-09-04 15:58:04 +02:00
Victor Stinner bed4817d52
Make PyXXX_Fini() functions private (GH-15531)
For example, rename PyTuple_Fini() to _PyTuple_Fini().

These functions are only declared in the internal C API.
2019-08-27 00:12:32 +02:00
Sergey Fedoseev 4fa10dde40 bpo-36030: Improve performance of some tuple operations (GH-12052) 2019-08-14 16:10:33 +02:00
Serhiy Storchaka 18b711c5a7
bpo-37648: Fixed minor inconsistency in some __contains__. (GH-14904)
The collection's item is now always at the left and
the needle is on the right of ==.
2019-08-04 14:12:48 +03:00
Jeroen Demeyer 530f506ac9 bpo-36974: tp_print -> tp_vectorcall_offset and tp_reserved -> tp_as_async (GH-13464)
Automatically replace
tp_print -> tp_vectorcall_offset
tp_compare -> tp_as_async
tp_reserved -> tp_as_async
2019-05-30 19:13:39 -07:00
Victor Stinner 331a6a56e9
bpo-36763: Implement the PEP 587 (GH-13592)
* Add a whole new documentation page:
  "Python Initialization Configuration"
* PyWideStringList_Append() return type is now PyStatus,
  instead of int
* PyInterpreterState_New() now calls PyConfig_Clear() if
  PyConfig_InitPythonConfig() fails.
* Rename files:

  * Python/coreconfig.c => Python/initconfig.c
  * Include/cpython/coreconfig.h => Include/cpython/initconfig.h
  * Include/internal/: pycore_coreconfig.h => pycore_initconfig.h

* Rename structures

  * _PyCoreConfig => PyConfig
  * _PyPreConfig => PyPreConfig
  * _PyInitError => PyStatus
  * _PyWstrList => PyWideStringList

* Rename PyConfig fields:

  * use_module_search_paths => module_search_paths_set
  * module_search_path_env => pythonpath_env

* Rename PyStatus field: _func => func
* PyInterpreterState: rename core_config field to config
* Rename macros and functions:

  * _PyCoreConfig_SetArgv() => PyConfig_SetBytesArgv()
  * _PyCoreConfig_SetWideArgv() => PyConfig_SetArgv()
  * _PyCoreConfig_DecodeLocale() => PyConfig_SetBytesString()
  * _PyInitError_Failed() => PyStatus_Exception()
  * _Py_INIT_ERROR_TYPE_xxx enums => _PyStatus_TYPE_xxx
  * _Py_UnixMain() => Py_BytesMain()
  * _Py_ExitInitError() => Py_ExitStatusException()
  * _Py_PreInitializeFromArgs() => Py_PreInitializeFromBytesArgs()
  * _Py_PreInitializeFromWideArgs() => Py_PreInitializeFromArgs()
  * _Py_PreInitialize() => Py_PreInitialize()
  * _Py_RunMain() => Py_RunMain()
  * _Py_InitializeFromConfig() => Py_InitializeFromConfig()
  * _Py_INIT_XXX() => _PyStatus_XXX()
  * _Py_INIT_FAILED() => _PyStatus_EXCEPTION()

* Rename 'err' PyStatus variables to 'status'
* Convert RUN_CODE() macro to config_run_code() static inline function
* Remove functions:

  * _Py_InitializeFromArgs()
  * _Py_InitializeFromWideArgs()
  * _PyInterpreterState_GetCoreConfig()
2019-05-27 16:39:22 +02:00
Zackery Spytz 14514d9084 bpo-36946: Fix possible signed integer overflow when handling slices. (GH-13375)
The final addition (cur += step) may overflow, so use size_t for "cur".
"cur" is always positive (even for negative steps), so it is safe to use
size_t here.

Co-Authored-By: Martin Panter <vadmium+py@gmail.com>
2019-05-17 10:13:03 +03:00
Jeroen Demeyer 351c67416b bpo-35983: skip trashcan for subclasses (GH-11841)
Add new trashcan macros to deal with a double deallocation that could occur when the `tp_dealloc` of a subclass calls the `tp_dealloc` of a base class and that base class uses the trashcan mechanism.

Patch by Jeroen Demeyer.
2019-05-10 19:21:10 +02:00
Sergey Fedoseev 234531b446 bpo-36030: Add _PyTuple_FromArray() function (GH-11954) 2019-02-25 17:59:12 +01:00
Serhiy Storchaka bb86bf4c4e
bpo-35444: Unify and optimize the helper for getting a builtin object. (GH-11047)
This speeds up pickling of some iterators.

This fixes also error handling in pickling methods when fail to
look up builtin "getattr".
2018-12-11 08:28:18 +02:00
Victor Stinner bcda8f1d42
bpo-35081: Add Include/internal/pycore_object.h (GH-10640)
Move _PyObject_GC_TRACK() and _PyObject_GC_UNTRACK() from
Include/objimpl.h to Include/internal/pycore_object.h.
2018-11-21 22:27:47 +01:00
Victor Stinner 621cebe81b
bpo-35081: Rename internal headers (GH-10275)
Rename Include/internal/ headers:

* pycore_hash.h -> pycore_pyhash.h
* pycore_lifecycle.h -> pycore_pylifecycle.h
* pycore_mem.h -> pycore_pymem.h
* pycore_state.h -> pycore_pystate.h

Add missing headers to Makefile.pre.in and PCbuild:

* pycore_condvar.h.
* pycore_hamt.h
* pycore_pyhash.h
2018-11-12 16:53:38 +01:00
Victor Stinner e281f7d80c
bpo-35081: Move accu.h to Include/internal/pycore_accu.h (GH-10271)
The accu.h header is no longer part of the Python C API: it has been
moved to the "internal" headers which are restricted to Python
itself.

Replace #include "accu.h" with #include "pycore_accu.h".
2018-11-01 02:30:36 +01:00
Victor Stinner 27e2d1f219
bpo-35081: Add pycore_ prefix to internal header files (GH-10263)
* Rename Include/internal/ header files:

  * pyatomic.h -> pycore_atomic.h
  * ceval.h -> pycore_ceval.h
  * condvar.h -> pycore_condvar.h
  * context.h -> pycore_context.h
  * pygetopt.h -> pycore_getopt.h
  * gil.h -> pycore_gil.h
  * hamt.h -> pycore_hamt.h
  * hash.h -> pycore_hash.h
  * mem.h -> pycore_mem.h
  * pystate.h -> pycore_state.h
  * warnings.h -> pycore_warnings.h

* PCbuild project, Makefile.pre.in, Modules/Setup: add the
  Include/internal/ directory to the search paths of header files.
* Update includes. For example, replace #include "internal/mem.h"
  with #include "pycore_mem.h".
2018-11-01 00:52:28 +01:00
Pablo Galindo 49c75a8086
bpo-35064 prefix smelly symbols that appear with COUNT_ALLOCS with _Py_ (GH-10152)
Configuring python with ./configure --with-pydebug CFLAGS="-D COUNT_ALLOCS -O0"
makes "make smelly" fail as some symbols were being exported without the "Py_" or
"_Py" prefixes.
2018-10-28 15:02:17 +00:00
jdemeyer aeb1be5868 bpo-34751: improved hash function for tuples (GH-9471) 2018-10-27 20:06:38 -04:00
Victor Stinner caba55b3b7
bpo-34301: Add _PyInterpreterState_Get() helper function (GH-8592)
sys_setcheckinterval() now uses a local variable to parse arguments,
before writing into interp->check_interval.
2018-08-03 15:33:52 +02:00
Siddhesh Poyarekar 55edd0c185 bpo-33012: Fix invalid function cast warnings with gcc 8 for METH_NOARGS. (GH-6030)
METH_NOARGS functions need only a single argument but they are cast
into a PyCFunction, which takes two arguments.  This triggers an
invalid function cast warning in gcc8 due to the argument mismatch.
Fix this by adding a dummy unused argument.
2018-04-29 21:59:33 +03:00
Eddie Elizondo 745dc65b17 closes bpo-32898: Fix debug build crash with COUNT_ALLOCS (GH-5800) 2018-02-21 20:55:18 -08:00
Leo Arias c3d9508ff2 bpo-32746: Fix multiple typos (GH-5144)
Fix typos found by codespell in docs, docstrings, and comments.
2018-02-03 19:36:10 -05:00
Serhiy Storchaka 1fb72d2ad2
bpo-32137: The repr of deeply nested dict now raises a RecursionError (#4570)
instead of crashing due to a stack overflow.

This perhaps will fix similar problems in other extension types.
2017-12-03 22:12:11 +02:00
Victor Stinner 25420fe290
bpo-32030: Add more options to _PyCoreConfig (#4485)
Py_Main() now handles two more -X options:

* -X showrefcount: new _PyCoreConfig.show_ref_count field
* -X showalloccount: new _PyCoreConfig.show_alloc_count field
2017-11-20 18:12:22 -08:00
stratakis e8b1965639 bpo-23699: Use a macro to reduce boilerplate code in rich comparison functions (GH-793) 2017-11-02 20:32:54 +10:00
Eric Snow 2ebc5ce42a bpo-30860: Consolidate stateful runtime globals. (#3397)
* group the (stateful) runtime globals into various topical structs
* consolidate the topical structs under a single top-level _PyRuntimeState struct
* add a check-c-globals.py script that helps identify runtime globals

Other globals are excluded (see globals.txt and check-c-globals.py).
2017-09-07 23:51:28 -06:00
Serhiy Storchaka b879fe82e7 Expand the PySlice_GetIndicesEx macro. (#1023) 2017-04-08 09:53:51 +03:00
Serhiy Storchaka d4edfc9abf bpo-29935: Fixed error messages in the index() method of tuple, list and deque (#887)
when pass indices of wrong type.
2017-03-30 18:29:23 +03:00
Serhiy Storchaka 0b5615926a bpo-20186: Convert tuple object implementation to Argument Clinic. (#614) 2017-03-19 08:47:58 +02:00
Serhiy Storchaka 98e80c2bab bpo-29737: Optimize concatenating with empty tuple. (#524) 2017-03-06 23:39:35 +02:00
Serhiy Storchaka 2e5642422f bpo-29695: Remove bad keyword parameters in int(), bool(), float(), list() and tuple(). (#518) 2017-03-06 17:01:06 +02:00
Serhiy Storchaka 58d23e6806 bpo-29695: Deprecated using bad named keyword arguments in builtings: (#486)
int(), bool(), float(), list() and tuple().  Specify the value as a
positional argument instead.
2017-03-06 00:53:39 +02:00
Serhiy Storchaka 228b12edcc Issue #28999: Use Py_RETURN_NONE, Py_RETURN_TRUE and Py_RETURN_FALSE wherever
possible.  Patch is writen with Coccinelle.
2017-01-23 09:47:21 +02:00
Martin Panter b93d8637a6 Issue #1621: Avoid signed overflow in list and tuple operations
Patch by Xiang Zhang.
2016-07-25 02:39:20 +00:00
Serhiy Storchaka 7e160ce356 Issue #23034: The output of a special Python build with defined COUNT_ALLOCS,
SHOW_ALLOC_COUNT or SHOW_TRACK_COUNT macros is now off by  default.  It can
be re-enabled using the "-X showalloccount" option.  It now outputs to stderr
instead of stdout.
2016-07-03 21:03:53 +03:00
Serhiy Storchaka ec39756960 Issue #22570: Renamed Py_SETREF to Py_XSETREF. 2016-04-06 09:50:03 +03:00
Serhiy Storchaka ab479c49d3 Issue #26494: Fixed crash on iterating exhausting iterators.
Affected classes are generic sequence iterators, iterators of str, bytes,
bytearray, list, tuple, set, frozenset, dict, OrderedDict, corresponding
views and os.scandir() iterator.
2016-03-30 20:41:15 +03:00
Serhiy Storchaka fbb1c5ee06 Issue #26494: Fixed crash on iterating exhausting iterators.
Affected classes are generic sequence iterators, iterators of str, bytes,
bytearray, list, tuple, set, frozenset, dict, OrderedDict, corresponding
views and os.scandir() iterator.
2016-03-30 20:40:02 +03:00
Serhiy Storchaka 1ed017ae92 Issue #20440: Cleaning up the code by using Py_SETREF and Py_CLEAR.
Old code is correct, but with Py_SETREF and Py_CLEAR it can be cleaner.
This patch doesn't fix bugs and hence there is no need to backport it.
2015-12-27 15:51:32 +02:00
Antoine Pitrou 63afdaa110 Issue #23629: Fix the default __sizeof__ implementation for variable-sized objects. 2015-03-10 22:35:24 +01:00
Antoine Pitrou a654510150 Issue #23629: Fix the default __sizeof__ implementation for variable-sized objects. 2015-03-10 22:32:00 +01:00