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* bpo-40513: new_interpreter() init GIL earlier (GH-19942)Victor Stinner2020-05-051-4/+4
| | | Fix also code to handle init_interp_main() failure.
* bpo-40522: _PyThreadState_Swap() sets autoTSSkey (GH-19939)Victor Stinner2020-05-053-2/+48
| | | | | | | | | | | | | | | | | | In the experimental isolated subinterpreters build mode, _PyThreadState_GET() gets the autoTSSkey variable and _PyThreadState_Swap() sets the autoTSSkey variable. * Add _PyThreadState_GetTSS() * _PyRuntimeState_GetThreadState() and _PyThreadState_GET() return _PyThreadState_GetTSS() * PyEval_SaveThread() sets the autoTSSkey variable to current Python thread state rather than NULL. * eval_frame_handle_pending() doesn't check that _PyThreadState_Swap() result is NULL. * _PyThreadState_Swap() gets the current Python thread state with _PyThreadState_GetTSS() rather than _PyRuntimeGILState_GetThreadState(). * PyGILState_Ensure() no longer checks _PyEval_ThreadsInitialized() since it cannot access the current interpreter.
* bpo-40521: Disable free lists in subinterpreters (GH-19937)Victor Stinner2020-05-053-80/+162
| | | | | | | | | When Python is built with experimental isolated interpreters, disable tuple, dict and free free lists. Temporary workaround until these caches are made per-interpreter. Add frame_alloc() and frame_get_builtins() subfunctions to simplify _PyFrame_New_NoTrack().
* bpo-40458: Increase reserved stack space to prevent overflow crash on ↵Steve Dower2020-05-053-0/+3
| | | | Windows (GH-19845)
* bpo-40521: Disable Unicode caches in isolated subinterpreters (GH-19933)Victor Stinner2020-05-052-15/+79
| | | | | | | When Python is built in the experimental isolated subinterpreters mode, disable Unicode singletons and Unicode interned strings since they are shared by all interpreters. Temporary workaround until these caches are made per-interpreter.
* Revert "bpo-40513: Per-interpreter signals pending (GH-19924)" (GH-19932)Victor Stinner2020-05-054-32/+42
| | | This reverts commit 4e01946cafca0cf49f796c3118e0d65237bcad69.
* bpo-40520: Remove redundant comment in pydebug.h (GH-19931)Hai Shi2020-05-051-2/+0
| | | Automerge-Triggered-By: @corona10
* bpo-29587: _PyErr_ChainExceptions() checks exception (GH-19902)Victor Stinner2020-05-054-24/+45
| | | | | | | | | | | | | | | | | | | _PyErr_ChainExceptions() now ensures that the first parameter is an exception type, as done by _PyErr_SetObject(). * The following function now check PyExceptionInstance_Check() in an assertion using a new _PyBaseExceptionObject_cast() helper function: * PyException_GetTraceback(), PyException_SetTraceback() * PyException_GetCause(), PyException_SetCause() * PyException_GetContext(), PyException_SetContext() * PyExceptionClass_Name() now checks PyExceptionClass_Check() with an assertion. * Remove XXX comment and add gi_exc_state variable to _gen_throw(). * Remove comment from test_generators
* bpo-40513: Per-interpreter recursion_limit (GH-19929)Victor Stinner2020-05-054-22/+28
| | | | | | | | | | | Move recursion_limit member from _PyRuntimeState.ceval to PyInterpreterState.ceval. * Py_SetRecursionLimit() now only sets _Py_CheckRecursionLimit of ceval.c if the current Python thread is part of the main interpreter. * Inline _Py_MakeEndRecCheck() into _Py_LeaveRecursiveCall(). * Convert _Py_RecursionLimitLowerWaterMark() macro into a static inline function.
* bpo-32117: Updated Simpsons names in docs (GH-19737)Javier Buzzi2020-05-051-2/+2
| | | | | `sally` is not a Simpsons character Automerge-Triggered-By: @gvanrossum
* bpo-40514: Add --with-experimental-isolated-subinterpreters (GH-19926)Victor Stinner2020-05-055-0/+60
| | | | | | | Add --with-experimental-isolated-subinterpreters build option to configure: better isolate subinterpreters, experimental build mode. When used, force the usage of the libc malloc() memory allocator, since pymalloc relies on the unique global interpreter lock (GIL).
* bpo-40513: Per-interpreter gil_drop_request (GH-19927)Victor Stinner2020-05-054-47/+45
| | | | Move gil_drop_request member from _PyRuntimeState.ceval to PyInterpreterState.ceval.
* bpo-40513: Per-interpreter signals pending (GH-19924)Victor Stinner2020-05-053-7/+7
| | | | Move signals_pending from _PyRuntime.ceval to PyInterpreterState.ceval.
* bpo-40286: Put methods in correct sections. Add security notice to use ↵Raymond Hettinger2020-05-041-10/+15
| | | | secrets for session tokens. (GH-19870)
* bpo-40459: Fix NameError in platform.py (GH-19855)Dennis Sweeney2020-05-052-3/+4
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* bpo-1635741: Port syslog module to multiphase initialization (GH-19907)Dong-hee Na2020-05-052-59/+64
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* bpo-40499: Mention that asyncio.wait() needs a non-empty aws set (GH-19900)Joel Rosdahl2020-05-043-0/+4
| | | | | A similar formulation was added in bpo-21596 (db74d982d43d98040e38665d843cbc8de4a082b1) but was lost in bpo-33649 (3faaa8857a42a36383bb18425444e597fc876797).
* bpo-39470: Indicate that ``os.makedirs`` is equivalent to ``Path.mkdir`` ↵Joannah Nanjekye2020-05-041-0/+1
| | | | | | | | | | | | (GH-18216) * Indicate os.makedirs is equivalent to Path.mkdir * 📜🤖 Added by blurb_it. * ignore news feed Co-authored-by: nanjekyejoannah <joannah.nanjekye@ibm.com> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* bpo-40360: Add a What's New entry for lib2to3 pending deprecation (GH-19898)Miro Hrončok2020-05-041-0/+10
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* bpo-40275: test.support imports lazily locale import (GH-19761)Hai Shi2020-05-041-1/+1
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* bpo-40489: Add test case for dict contain use after free (GH-19906)Dong-hee Na2020-05-051-0/+13
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* bpo-40135: Fix multiprocessing test_shared_memory_across_processes() (GH-19892)Hai Shi2020-05-041-1/+3
| | | | Don't define shared memory block's name in test_shared_memory_across_processes(): use SharedMemory(create=True) instead.
* bpo-40455: Remove gcc10 warning about x_digits (#19852)Dong-hee Na2020-05-041-4/+3
| | | | | | | * bpo-40455: Remove gcc10 warning about x_digits * bpo-40455: nit * bpo-40455: fix logic error
* bpo-39573: Use Py_IS_TYPE to check for types (GH-19882)Hai Shi2020-05-042-3/+3
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* bpo-40246: Revert reporting of invalid string prefixes (GH-19888)Lysandros Nikolaou2020-05-046-12/+2
| | | | Due to backwards compatibility concerns regarding keywords immediately followed by a string without whitespace between them (like in `bg="#d00" if clear else"#fca"`) will fail to parse, commit 41d5b94af44e34ac05d4cd57460ed104ccf96628 has to be reverted.
* bpo-40334: Spacialized error message for invalid args after bare '*' (GH-19865)Lysandros Nikolaou2020-05-045-210/+472
| | | When parsing things like `def f(*): pass` the old parser used to output `SyntaxError: named arguments must follow bare *`, which the new parser wasn't able to do.
* bpo-40491: Fix typo in syntax error for numeric literals (GH-19893)Shantanu2020-05-041-1/+1
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* bpo-40408: Fix support of nested type variables in GenericAlias. (GH-19836)Serhiy Storchaka2020-05-043-26/+140
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* bpo-40493: fix function type comment parsing (GH-19894)Shantanu2020-05-033-0/+78
| | | | | The grammar for func_type_input rejected things like `(*t1) ->t2`. This fixes that. Automerge-Triggered-By: @gvanrossum
* Clean up unused imports for the peg generator module (GH-19891)Anthony Shaw2020-05-049-17/+4
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* bpo-40334: Set error_indicator in _PyPegen_raise_error (GH-19887)Lysandros Nikolaou2020-05-041-0/+1
| | | Due to PyErr_Occurred not being called at the beginning of each rule, we need to set the error indicator, so that rules do not get expanded after an exception has been thrown
* Remove outdated and confusing advice about setting maxsize (GH-19889)Raymond Hettinger2020-05-031-2/+1
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* Remove out-of-date comment (GH-19886)Raymond Hettinger2020-05-031-2/+1
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* bpo-38870: Don't start generated output with newlines in ast.unparse (GH-19636)Batuhan Taskaya2020-05-032-11/+15
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* Simplify set entry insertion logic. (GH-19881)Raymond Hettinger2020-05-031-16/+2
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* bpo-29587: allow chaining NULL exceptions in _gen_throw() (GH-19877)Chris Jerdonek2020-05-032-4/+25
| | | | | | | | | | | | | This is a follow-up to GH-19823 that removes the check that the exception value isn't NULL, prior to calling _PyErr_ChainExceptions(). This enables implicit exception chaining for gen.throw() in more circumstances. The commit also adds a test that a particular code snippet involving gen.throw() doesn't crash. The test shows why the new `gi_exc_state.exc_type != Py_None` check that was added is necessary. Without the new check, the code snippet (as well as a number of other tests) crashes on certain platforms (e.g. Fedora but not Mac).
* Minor code cleanups for statistics (GH-19873)Raymond Hettinger2020-05-021-76/+7
| | | | | * Minor cleanups: Removed unused code. Move C import near its Python version. * Clean-up whitespace
* Fix missing space in docs(GH-19866)Mathieu Dupuy2020-05-021-1/+1
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* bpo-40465: Deprecate the optional argument to random.shuffle(). (#19867)Raymond Hettinger2020-05-024-1/+10
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* bpo-40419: timeit CLI docs now mention 1,2,5,10,... trials instead of powers ↵Sander2020-05-022-2/+4
| | | | of 10 (GH-19752)
* Call $(MKDIR_P) before regenerating the PEG meta-parser (GH-19861)Pablo Galindo2020-05-021-0/+1
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* bpo-39435: Make the first argument of pickle.loads() positional-only. (GH-19846)Serhiy Storchaka2020-05-025-7/+9
| | | | It was positional-only de facto: documentation and two implementations used three different name.
* bpo-40334: regenerate metaparser as part of regen-all (GH-19854)Pablo Galindo2020-05-022-3/+12
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* Fix some scripts in the peg generator folder (GH-19853)Pablo Galindo2020-05-0210-31/+16064
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* bpo-29587: Update gen.throw() to chain exceptions (#19823)Chris Jerdonek2020-05-013-0/+27
| | | | | | | Before this commit, if an exception was active inside a generator when calling gen.throw(), that exception was lost (i.e. there was no implicit exception chaining). This commit fixes that by setting exc.__context__ when calling gen.throw(exc).
* bpo-40417: Fix deprecation warning in PyImport_ReloadModule (GH-19750)Robert Rouhani2020-05-012-7/+8
| | | | | I can add another commit with the new test case I wrote to verify that the warning was being printed before my change, stopped printing after my change, and that the function does not return null after my change. Automerge-Triggered-By: @brettcannon
* bpo-40334: use the TOKENS file when checking dangling rules (GH-19849)Pablo Galindo2020-05-015-15/+31
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* Fix the Tools/peg_generator/scripts/benchmark.py script (GH-19848)Pablo Galindo2020-05-012-3/+4
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* bpo-39435: Fix docs for pickle.loads (GH-18160)Shantanu2020-05-013-2/+4
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* bpo-40412: Nullify inittab_copy during finalization (GH-19746)Gregory Szorc2020-05-012-0/+2
| | | | | | | | | Otherwise we leave a dangling pointer to free'd memory. If we then initialize a new interpreter in the same process and call PyImport_ExtendInittab, we will (likely) crash when calling PyMem_RawRealloc(inittab_copy, ...) since the pointer address is bogus. Automerge-Triggered-By: @brettcannon
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