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* bpo-40521: Make list free list per-interpreter (GH-20642)Victor Stinner2020-06-051-1/+1
| | | | | | | | | | | | Each interpreter now has its own list free list: * Move list numfree and free_list into PyInterpreterState. * Add _Py_list_state structure. * Add tstate parameter to _PyList_ClearFreeList() and _PyList_Fini(). * Remove "#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS". * _PyGC_Fini() clears gcstate->garbage list which can be stored in the list free list. Call _PyGC_Fini() before _PyList_Fini() to prevent leaking this list.
* bpo-40521: Make frame free list per-interpreter (GH-20638)Victor Stinner2020-06-041-1/+1
| | | | | | | | | | Each interpreter now has its own frame free list: * Move frame free list into PyInterpreterState. * Add _Py_frame_state structure. * Add tstate parameter to _PyFrame_ClearFreeList() and _PyFrame_Fini(). * Remove "#if PyFrame_MAXFREELIST > 0". * Remove "#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS".
* bpo-40521: Make float free list per-interpreter (GH-20636)Victor Stinner2020-06-041-1/+1
| | | | | | | | Each interpreter now has its own float free list: * Move tuple numfree and free_list into PyInterpreterState. * Add _Py_float_state structure. * Add tstate parameter to _PyFloat_ClearFreeList() and _PyFloat_Fini().
* bpo-40521: Make tuple free list per-interpreter (GH-20247)Victor Stinner2020-06-041-1/+2
| | | | | | | | | | Each interpreter now has its own tuple free lists: * Move tuple numfree and free_list arrays into PyInterpreterState. * Define PyTuple_MAXSAVESIZE and PyTuple_MAXFREELIST macros in pycore_interp.h. * Add _Py_tuple_state structure. Pass it explicitly to tuple_alloc(). * Add tstate parameter to _PyTuple_ClearFreeList() * Each interpreter now has its own empty tuple singleton.
* bpo-40865: Remove unused insint() macro from hash modules (GH-20627)Erlend Egeberg Aasland2020-06-044-12/+0
| | | Automerge-Triggered-By: @tiran
* Remove unused ReaderObject_Check macro (#20614)Dong-hee Na2020-06-031-2/+0
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* bpo-40826: Add _PyOS_InterruptOccurred(tstate) function (GH-20599)Victor Stinner2020-06-031-2/+12
| | | | | | | | | | | | my_fgets() now calls _PyOS_InterruptOccurred(tstate) to check for pending signals, rather calling PyOS_InterruptOccurred(). my_fgets() is called with the GIL released, whereas PyOS_InterruptOccurred() must be called with the GIL held. test_repl: use text=True and avoid SuppressCrashReport in test_multiline_string_parsing(). Fix my_fgets() on Windows: fgets(fp) does crash if fileno(fp) is closed.
* bpo-32604: Fix reference leak in select module (GH-20600)Victor Stinner2020-06-031-2/+0
| | | | Fix reference leak in PyInit_select() of the select module: remove Py_INCREF(poll_Type).
* PyOS_AfterFork_Child() pass tstate to _PyEval_ReInitThreads() (GH-20598)Victor Stinner2020-06-021-2/+6
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* PyOS_AfterFork_Child() uses PyStatus (GH-20596)Victor Stinner2020-06-022-8/+40
| | | | | | | | PyOS_AfterFork_Child() helper functions now return a PyStatus: PyOS_AfterFork_Child() is now responsible to handle errors. * Move _PySignal_AfterFork() to the internal C API * Add #ifdef HAVE_FORK on _PyGILState_Reinit(), _PySignal_AfterFork() and _PyInterpreterState_DeleteExceptMain().
* bpo-40826: PyOS_InterruptOccurred() requires GIL (GH-20578)Victor Stinner2020-06-011-2/+3
| | | | PyOS_InterruptOccurred() now fails with a fatal error if it is called with the GIL released.
* bpo-39943: Fix MSVC warnings in sre extension (GH-20508)Ammar Askar2020-06-012-3/+10
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* bpo-39593: Add test on ctypes cfield.c s_set() (GH-18424)Hai Shi2020-06-011-1/+3
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* bpo-1635741: Port fcntl module to multiphase initialization (GH-20540)Dong-hee Na2020-06-011-22/+19
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* bpo-30008: Fix OpenSSL no-deprecated compilation (GH-20397)Christian Heimes2020-06-011-11/+45
| | | | | | | | | Fix :mod:`ssl`` code to be compatible with OpenSSL 1.1.x builds that use ``no-deprecated`` and ``--api=1.1.0``. Note: Tests assume full OpenSSL API and fail with limited API. Signed-off-by: Christian Heimes <christian@python.org> Co-authored-by: Mark Wright <gienah@gentoo.org>
* bpo-40061: Fix a possible refleak in _asynciomodule.c (GH-19748)Zackery Spytz2020-05-301-0/+1
| | | | tup should be decrefed in the unlikely event of a PyList_New() failure.
* bpo-40777: Initialize PyDateTime_IsoCalendarDateType.tp_base at run-time ↵Petr Viktorin2020-05-281-3/+10
| | | | | | | (GH-20493) Recent changes to _datetimemodule broke compilation on mingw; see the comments in this change for details. FWIW, @corona10: this issue is why `PyType_FromModuleAndSpec` & friends take the `bases` argument at run time.
* bpo-25920: Remove socket.getaddrinfo() lock on macOS (GH-20177)Victor Stinner2020-05-281-47/+2
| | | | | | | | | On macOS, socket.getaddrinfo() no longer uses an internal lock to prevent race conditions when calling getaddrinfo(). getaddrinfo is thread-safe is macOS 10.5, whereas Python 3.9 requires macOS 10.6 or newer. The lock was also used on FreeBSD older than 5.3, OpenBSD older than 201311 and NetBSD older than 4.
* bpo-40792: Make the result of PyNumber_Index() always having exact type int. ↵Serhiy Storchaka2020-05-2824-112/+86
| | | | | | | | | | | | (GH-20443) Previously, the result could have been an instance of a subclass of int. Also revert bpo-26202 and make attributes start, stop and step of the range object having exact type int. Add private function _PyNumber_Index() which preserves the old behavior of PyNumber_Index() for performance to use it in the conversion functions like PyLong_AsLong().
* bpo-40795: ctypes calls unraisablehook with an exception (GH-20452)Victor Stinner2020-05-272-14/+31
| | | | | | If ctypes fails to convert the result of a callback or if a ctypes callback function raises an exception, sys.unraisablehook is now called with an exception set. Previously, the error was logged into stderr by PyErr_Print().
* bpo-37129: Add os.RWF_APPEND flag for os.pwritev() (GH-20336)YoSTEALTH2020-05-272-2/+7
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* Fix compiler warnings in _zoneinfo.c (GH-20342)Pablo Galindo2020-05-271-30/+26
| | | | | | | ``` D:\a\cpython\cpython\Modules\_zoneinfo.c(903,52): warning C4267: '=': conversion from 'size_t' to 'unsigned int', possible loss of data [D:\a\cpython\cpython\PCbuild\_zoneinfo.vcxproj] D:\a\cpython\cpython\Modules\_zoneinfo.c(904,44): warning C4267: '=': conversion from 'size_t' to 'unsigned int', possible loss of data [D:\a\cpython\cpython\PCbuild\_zoneinfo.vcxproj] D:\a\cpython\cpython\Modules\_zoneinfo.c(1772,31): warning C4244: '=': conversion from 'ssize_t' to 'uint8_t', possible loss of data [D:\a\cpython\cpython\PCbuild\_zoneinfo.vcxproj] ```
* bpo-40791: Use CRYPTO_memcmp() for compare_digest (#20456)Christian Heimes2020-05-273-1/+159
| | | | | | | | hashlib.compare_digest uses OpenSSL's CRYPTO_memcmp() function when OpenSSL is available. Note: The _operator module is a builtin module. I don't want to add libcrypto dependency to libpython. Therefore I duplicated the wrapper function and added a copy to _hashopenssl.c.
* bpo-13097: ctypes: limit callback to 1024 arguments (GH-19914)Sean Gillespie2020-05-271-0/+15
| | | | | | | | | | ctypes now raises an ArgumentError when a callback is invoked with more than 1024 arguments. The ctypes module allocates arguments on the stack in ctypes_callproc() using alloca(), which is problematic when large numbers of arguments are passed. Instead of a stack overflow, this commit raises an ArgumentError if more than 1024 parameters are passed.
* bpo-39573: Convert Py_REFCNT and Py_SIZE to functions (GH-20429)Victor Stinner2020-05-271-2/+2
| | | | | | | | | | | Convert Py_REFCNT() and Py_SIZE() macros to static inline functions. They cannot be used as l-value anymore: use Py_SET_REFCNT() and Py_SET_SIZE() to set an object reference count and size. Replace &Py_SIZE(self) with &((PyVarObject*)self)->ob_size in arraymodule.c. This change is backward incompatible on purpose, to prepare the C API for an opaque PyObject structure.
* bpo-40217: Ensure Py_VISIT(Py_TYPE(self)) is always called for ↵Pablo Galindo2020-05-275-0/+6
| | | | | | | | | PyType_FromSpec types (reverts GH-19414) (GH-20264) Heap types now always visit the type in tp_traverse. See added docs for details. This reverts commit 0169d3003be3d072751dd14a5c84748ab63a249f. Automerge-Triggered-By: @encukou
* bpo-40611: Adds MAP_POPULATE to the mmap module (GH-20061)Ethan Steinberg2020-05-261-0/+3
| | | | MAP_POPULATE constant has now been added to the list of exported mmap module flags.
* bpo-37999: No longer use __int__ in implicit integer conversions. (GH-15636)Serhiy Storchaka2020-05-2653-2097/+94
| | | | Only __index__ should be used to make integer conversions lossless.
* bpo-40737: Fix possible reference leak for sqlite3 initialization (GH-20323)Erlend Egeberg Aasland2020-05-261-8/+12
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* bpo-40688: Use the correct parser in the peg_generator scripts (GH-20235)Lysandros Nikolaou2020-05-251-52/+81
| | | | | | | The scripts in `Tools/peg_generator/scripts` mostly assume that `ast.parse` and `compile` use the old parser, since this was the state of things, while we were developing them. They need to be updated to always use the correct parser. `_peg_parser` is being extended to support both parsing and compiling with both parsers.
* bpo-40671: Prepare _hashlib for PEP 489 (GH-20180)Christian Heimes2020-05-251-67/+114
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* bpo-35714: Reject null characters in struct format strings (GH-16928)Zackery Spytz2020-05-251-0/+5
| | | | struct.error is now raised if there is a null character in a struct format string.
* bpo-38580: Document that select() accepts iterables, not just sequences ↵Jakub Stasiak2020-05-252-5/+5
| | | | (GH-16832)
* bpo-40696: Fix a hang that can arise after gen.throw() (GH-20287)Chris Jerdonek2020-05-221-6/+6
| | | | | | | | This updates _PyErr_ChainStackItem() to use _PyErr_SetObject() instead of _PyErr_ChainExceptions(). This prevents a hang in certain circumstances because _PyErr_SetObject() performs checks to prevent cycles in the exception context chain while _PyErr_ChainExceptions() doesn't.
* bpo-40705: Fix use-after-free in _zoneinfo's module_free (GH-20280)Ammar Askar2020-05-221-6/+9
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* Let the argument clinic do the type checking for heapq (GH-20284)Raymond Hettinger2020-05-222-46/+117
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* bpo-40630: Add tracemalloc.reset_peak (GH-20102)Huon Wilson2020-05-222-1/+46
| | | | | | | The reset_peak function sets the peak memory size to the current size, representing a resetting of that metric. This allows for recording the peak of specific sections of code, ignoring other code that may have had a higher peak (since the most recent `tracemalloc.start()` or tracemalloc.clear_traces()` call).
* bpo-40714: Remove compile warning from _zoneinfo.c (GH-20291)Dong-hee Na2020-05-211-2/+4
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* bpo-40645: restrict HMAC key len to INT_MAX (GH-20238)Christian Heimes2020-05-191-1/+7
| | | | | Signed-off-by: Christian Heimes <christian@python.org> Automerge-Triggered-By: @tiran
* bpo-37616: Handle version information more gracefully in getpath.c (GH-20214)Pablo Galindo2020-05-191-9/+3
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* bpo-40677: Define IO_REPARSE_TAG_APPEXECLINK explicitly (GH-20206)Minmin Gong2020-05-191-0/+4
| | | This allows building with older versions of the Windows SDK where the value is not defined.
* Python 3.10.0a0 (GH-20198)Pablo Galindo2020-05-191-5/+6
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* bpo-40653: Move _dirnameW out of #ifdef HAVE_SYMLINK/#endif (GH-20144)Minmin Gong2020-05-181-2/+6
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* bpo-39148: enable ipv6 for datagrams in Proactor (GH-19121)Kjell Braden2020-05-181-5/+2
| | | | | | Ifdef is not necessary, as AF_INET6 is supported from Windows Vista, and other code in overlapped.c uses AF_INET6 and is not ifdef'd. Change the raised exception so users are not fooled to think it comes from Windows API. Automerge-Triggered-By: @njsmith
* bpo-31033: Improve the traceback for cancelled asyncio tasks (GH-19951)Chris Jerdonek2020-05-182-22/+106
| | | | | When an asyncio.Task is cancelled, the exception traceback now starts with where the task was first interrupted. Previously, the traceback only had "depth one."
* bpo-40665: Use Argument Clinic for the bisect module (GH-20163)Shantanu2020-05-182-131/+411
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* bpo-37630: Fix spelling shake128 -> shake_128 (GH-20154)Christian Heimes2020-05-172-39/+39
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* bpo-40645: Implement HMAC in C (GH-20129)Christian Heimes2020-05-172-17/+568
| | | | | | | | | The internal module ``_hashlib`` wraps and exposes OpenSSL's HMAC API. The new code will be used in Python 3.10 after the internal implementation details of the pure Python HMAC module are no longer part of the public API. The code is based on a patch by Petr Viktorin for RHEL and Python 3.6. Co-Authored-By: Petr Viktorin <encukou@gmail.com>
* bpo-39740: Early declare devpoll_methods to support old compilers (GH-19281)Batuhan Taskaya2020-05-161-0/+2
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* bpo-37630: Use SHA3 and SHAKE XOF from OpenSSL (GH-16049)Christian Heimes2020-05-162-18/+822
| | | | | | | OpenSSL 1.1.1 comes with SHA3 and SHAKE builtin. Signed-off-by: Christian Heimes <christian@python.org> Automerge-Triggered-By: @tiran
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