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* bpo-41625: Skip os.splice() tests on AIX (GH-23354)Victor Stinner2020-11-171-0/+8
| | | | On AIX, splice() only works with a socket, whereas the test uses a pipe.
* bpo-41686: Move _Py_RestoreSignals() to signalmodule.c (GH-23353)Victor Stinner2020-11-172-23/+23
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* Fix: Docstrings hidden by slots. (GH-23352)Julien Palard2020-11-171-15/+6
| | | Some `__slots__` where before the docstring, hiding them.
* bpo-41625: Add a guard for Linux for splice() constants in the os module ↵Pablo Galindo2020-11-171-1/+1
| | | | (GH-23350)
* bpo-41625: Specify that Linux >= 2.6.17 *and* glibc >= 2.5 are requir… ↵Pablo Galindo2020-11-171-1/+1
| | | | | (GH-23351) …ed for splice()
* bpo-42349: Compiler clean up. More yak-shaving for PEP 626. (GH-23267)Mark Shannon2020-11-177-4656/+4752
| | | Make sure that CFG from compiler front-end is correct. Be a bit more aggressive in the compiler back-end.
* bpo-41625: Add versionadded to os.splice() constants (GH-23340)Pablo Galindo2020-11-171-0/+1
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* bpo-41686: Refactor signal_exec() (GH-23346)Victor Stinner2020-11-171-158/+125
| | | | | | * Add signal_add_constants() function and add ADD_INT_MACRO macro. * The Python SIGINT handler is now installed at the end of signal_exec(). * Use Py_NewRef().
* bpo-41686: Always create the SIGINT event on Windows (GH-23344)Victor Stinner2020-11-172-53/+91
| | | | | | | | | | | | | | bpo-41686, bpo-41713: On Windows, the SIGINT event, _PyOS_SigintEvent(), is now created even if Python is configured to not install signal handlers (PyConfig.install_signal_handlers=0 or Py_InitializeEx(0)). Changes: * Move global variables initialization from signal_exec() to _PySignal_Init() to clarify that they are global variables cleared by _PySignal_Fini(). * _PySignal_Fini() now closes sigint_event. * IntHandler is no longer a global variable.
* bpo-42264: Deprecate sqlite3.OptimizedUnicode (GH-23163)Erlend Egeberg Aasland2020-11-175-12/+26
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* bpo-41713: Remove PyOS_InitInterrupts() function (GH-23342)Victor Stinner2020-11-176-40/+38
| | | | | | | Remove the undocumented PyOS_InitInterrupts() C function. * Rename PyOS_InitInterrupts() to _PySignal_Init(). It now installs other signal handlers, not only SIGINT. * Rename PyOS_FiniInterrupts() to _PySignal_Fini()
* bpo-40637: Don't test builtin PBKDF2 without builtin hashes (GH-20980)Christian Heimes2020-11-171-9/+18
| | | | | | | Skip testing of pure Python PBKDF2 when one or more builtin hash module is not available. Otherwise the import of hashlib prints noise on stderr. Signed-off-by: Christian Heimes <christian@python.org>
* bpo-41861, _sqlite3 : Add NEWS entry and rename variables (GH-23337)Erlend Egeberg Aasland2020-11-172-8/+10
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* bpo-42345: Fix three issues with typing.Literal parameters (GH-23294)Yurii Karabas2020-11-174-23/+104
| | | | | | | Literal equality no longer depends on the order of arguments. Fix issue related to `typing.Literal` caching by adding `typed` parameter to `typing._tp_cache` function. Add deduplication of `typing.Literal` arguments.
* bpo-42381: Allow walrus in set literals and set comprehensions (GH-23332)Pablo Galindo2020-11-174-1124/+1014
| | | | | | | | | | | Currently walruses are not allowerd in set literals and set comprehensions: >>> {y := 4, 4**2, 3**3} File "<stdin>", line 1 {y := 4, 4**2, 3**3} ^ SyntaxError: invalid syntax but they should be allowed as well per PEP 572
* bpo-41625: Expose the splice() system call in the os module (GH-21947)Pablo Galindo2020-11-1710-78/+349
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* Add GCC pragmas to silence compiler warning about ffi_prep_closure (GH-23327)Pablo Galindo2020-11-161-2/+9
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* bpo-42120: Remove macro defining copysign to _copysign on Windows (GH-23326)Steve Dower2020-11-162-1/+1
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* bpo-42316: Allow unparenthesized walrus operator in indexes (GH-23317)Lysandros Nikolaou2020-11-164-7/+29
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* bpo-42374: Allow unparenthesized walrus in genexps (GH-23319)Lysandros Nikolaou2020-11-164-7/+18
| | | | | This fixes a regression that was introduced by the new parser. Automerge-Triggered-By: GH:lysnikolaou
* bpo-38506: Fix the Windows py.exe launcher's misordering of 3.10 (GH-18307)Zackery Spytz2020-11-162-5/+17
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* bpo-40939: Document removal of the old parser in 3.10 whatsnew (GH-23321)Lysandros Nikolaou2020-11-161-0/+10
| | | Automerge-Triggered-By: GH:lysnikolaou
* bpo-42087: Remove support for AIX 5.3 and below (GH-22830)Kevin Adler2020-11-167-64/+23
| | | | | | As AIX 5.3 and below do not support thread_cputime, it was decided in https://bugs.python.org/issue40680 to require AIX 6.1 and above. This commit removes workarounds for — and references to — older, unsupported AIX versions.
* bpo-37205: time.time() cannot fail with fatal error (GH-23314)Victor Stinner2020-11-165-158/+228
| | | | | | | | | | | | | | | time.time(), time.perf_counter() and time.monotonic() functions can no longer fail with a Python fatal error, instead raise a regular Python exception on failure. Remove _PyTime_Init(): don't check system, monotonic and perf counter clocks at startup anymore. On error, _PyTime_GetSystemClock(), _PyTime_GetMonotonicClock() and _PyTime_GetPerfCounter() now silently ignore the error and return 0. They cannot fail with a Python fatal error anymore. Add py_mach_timebase_info() and win_perf_counter_frequency() sub-functions.
* bpo-42350: Fix Thread._reset_internal_locks() (GH-23268)Victor Stinner2020-11-163-2/+38
| | | | | Fix the threading.Thread class at fork: do nothing if the thread is already stopped (ex: fork called at Python exit). Previously, an error was logged in the child process.
* bpo-37205: time.perf_counter() and time.monotonic() are system-wide (GH-23284)Victor Stinner2020-11-163-21/+43
| | | | | | | time.perf_counter() on Windows and time.monotonic() on macOS are now system-wide. Previously, they used an offset computed at startup to reduce the precision loss caused by the float type. Use time.perf_counter_ns() and time.monotonic_ns() added in Python 3.7 to avoid this precision loss.
* bpo-42153 Fix link to IMAP documents in imaplib.rst (GH-23297)Yash Shete2020-11-162-3/+4
| | | The University of Washington stopped hosting the IMAP documents. Link to a rescued copy on GitHub.
* bpo-42332: Add weakref slot to types.GenericAlias (GH-23250)kj2020-11-163-38/+55
| | | Automerge-Triggered-By: GH:gvanrossum
* More updates to the descriptor howto guide (GH-23238)Raymond Hettinger2020-11-161-45/+62
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* bpo-42317: Improve docs of typing.get_args concerning Union (GH-23254)Dominik11232020-11-161-0/+3
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* bpo-42318: Fix support of non-BMP characters in Tkinter on macOS (GH-23281)Serhiy Storchaka2020-11-153-7/+94
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* bpo-42351: Avoid error when opening header with non-UTF8 encoding (GH-23279)Ronald Oussoren2020-11-141-1/+1
| | | | grep_headers_for() would error out when a header contained text that cannot be interpreted as UTF-8.
* bpo-41832: Restore note about NULL in PyType_Slot.pfunc (GH-23243)Hai Shi2020-11-141-0/+2
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* fix typo in ThreadedChildWatcher docs (GH-23277)Thomas Grainger2020-11-141-1/+1
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* bpo-42131: Add PEP 451-related methods to zipimport (GH-23187)Brett Cannon2020-11-136-965/+1131
| | | | | Specifically, find_spec(), create_module(), and exec_module(). Co-authored-by: Nick Coghlan <ncoghlan@gmail.com>
* bpo-40754: Adds _testinternalcapi to Windows installer for test suite (GH-23271)Steve Dower2020-11-132-2/+3
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* bpo-41001: Add os.eventfd() (#20930)Christian Heimes2020-11-139-3/+471
| | | Co-authored-by: Kyle Stanley <aeros167@gmail.com>
* bpo-42344: Improve pseudo implementation for SimpleNamespace (GH-23264)Jürgen Gmach2020-11-131-1/+3
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* bpo-40968: Send http/1.1 ALPN extension (#20959)Christian Heimes2020-11-135-0/+17
| | | Signed-off-by: Christian Heimes <christian@python.org>
* bpo-42042: Use ids attribute instead of names attribute (GH-22739)Dong-hee Na2020-11-131-2/+2
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* bpo-41617: Add _Py__has_builtin() macro (GH-23260)Victor Stinner2020-11-133-9/+21
| | | | | | | | | | | Fix building pycore_bitutils.h internal header on old clang version without __builtin_bswap16() (ex: Xcode 4.6.3 on Mac OS X 10.7). Add a new private _Py__has_builtin() macro to check for availability of a preprocessor builtin function. Co-Authored-By: Joshua Root <jmr@macports.org> Co-authored-by: Joshua Root <jmr@macports.org>
* bpo-42296: On Windows, fix CTRL+C regression (GH-23257)Victor Stinner2020-11-132-5/+37
| | | | | | | | | | | On Windows, fix a regression in signal handling which prevented to interrupt a program using CTRL+C. The signal handler can be run in a thread different than the Python thread, in which case the test deciding if the thread can handle signals is wrong. On Windows, _PyEval_SignalReceived() now always sets eval_breaker to 1 since it cannot test _Py_ThreadCanHandleSignals(), and eval_frame_handle_pending() always calls _Py_ThreadCanHandleSignals() to recompute eval_breaker.
* bpo-38823: Fix compiler warning in _ctypes on Windows (GH-23258)Victor Stinner2020-11-131-1/+1
| | | | | | Explicitly cast PyExc_Exception to PyTypeObject* to fix the warning: modules\_ctypes\_ctypes.c(5748): warning C4133: '=': incompatible types - from 'PyObject *' to '_typeobject *'
* bpo-42246: Fix memory leak in compiler (GH-23256)Mark Shannon2020-11-131-7/+13
| | | | | * Fix potential memory leak in assembler init. * Fix reference leak when encountering error during compilation of function body.
* bpo-42246: Eliminate jumps to exit blocks by copying those blocks. (#23251)Mark Shannon2020-11-126-4655/+4653
| | | * Compiler: eliminate jumps to short exit blocks by copying.
* bpo-42308: Add threading.__excepthook__ (GH-23218)Mario Corchero2020-11-125-0/+40
| | | | | Add threading.__excepthook__ to allow retrieving the original value of threading.excepthook in case it is set to a broken or a different value.
* bpo-38823: Always build _ctypes with wchar_t (GH-23248)Victor Stinner2020-11-126-31/+7
| | | | | It is no longer possible to build the _ctypes extension module without wchar_t type: remove CTYPES_UNICODE macro. Anyway, the wchar_t type is required to build Python.
* bpo-42260: Initialize time and warnings earlier at startup (GH-23249)Victor Stinner2020-11-127-133/+68
| | | | | | | | | | * Call _PyTime_Init() and _PyWarnings_InitState() earlier during the Python initialization. * Inline _PyImportHooks_Init() into _PySys_InitCore(). * The _warnings initialization function no longer call _PyWarnings_InitState() to prevent resetting filters_version to 0. * _PyWarnings_InitState() now returns an int and no longer clear the state in case of error (it's done anyway at Python exit). * Rework init_importlib(), fix refleaks on errors.
* bpo-38823: Fix refleaks in _ctypes extension init (GH-23247)Victor Stinner2020-11-122-162/+156
| | | | | | | | | | | Fix reference leaks in the error path of the initialization function the _ctypes extension module: call Py_DECREF(mod) on error. Change PyCFuncPtr_Type name from _ctypes.PyCFuncPtr to _ctypes.CFuncPtr to be consistent with the name exposed in the _ctypes namespace (_ctypes.CFuncPtr). Split PyInit__ctypes() function into sub-functions and add macros for readability.
* Bump magic number. (GH-23245)Mark Shannon2020-11-123-112/+114
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