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* bpo-40417: Fix deprecation warning in PyImport_ReloadModule (GH-19750)Robert Rouhani2020-05-011-7/+7
| | | | | 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-40412: Nullify inittab_copy during finalization (GH-19746)Gregory Szorc2020-05-011-0/+1
| | | | | | | | | 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
* bpo-40453: Add PyConfig._isolated_subinterpreter (GH-19820)Victor Stinner2020-05-012-3/+13
| | | | | | | | | An isolated subinterpreter cannot spawn threads, spawn a child process or call os.fork(). * Add private _Py_NewInterpreter(isolated_subinterpreter) function. * Add isolated=True keyword-only parameter to _xxsubinterpreters.create(). * Allow again os.fork() in "non-isolated" subinterpreters.
* bpo-40334: Support type comments (GH-19780)Guido van Rossum2020-04-301-5/+1
| | | | | | | | | | This implements full support for # type: <type> comments, # type: ignore <stuff> comments, and the func_type parsing mode for ast.parse() and compile(). Closes https://github.com/we-like-parsers/cpython/issues/95. (For now, you need to use the master branch of mypy, since another issue unique to 3.9 had to be fixed there, and there's no mypy release yet.) The only thing missing is `feature_version=N`, which is being tracked in https://github.com/we-like-parsers/cpython/issues/124.
* bpo-40421: Add PyFrame_GetBack() function (GH-19765)Victor Stinner2020-04-293-15/+32
| | | | | | New PyFrame_GetBack() function: get the frame next outer frame. Replace frame->f_back with PyFrame_GetBack(frame) in most code but frameobject.c, ceval.c and genobject.c.
* bpo-40429: PyThreadState_GetFrame() returns a strong ref (GH-19781)Victor Stinner2020-04-292-4/+6
| | | | The PyThreadState_GetFrame() function now returns a strong reference to the frame.
* bpo-40428: Remove PyTuple_ClearFreeList() function (GH-19769)Victor Stinner2020-04-291-8/+5
| | | | | | | | | | | | | | | | | | | Remove the following function from the C API: * PyAsyncGen_ClearFreeLists() * PyContext_ClearFreeList() * PyDict_ClearFreeList() * PyFloat_ClearFreeList() * PyFrame_ClearFreeList() * PyList_ClearFreeList() * PySet_ClearFreeList() * PyTuple_ClearFreeList() Make these functions private, move them to the internal C API and change their return type to void. Call explicitly PyGC_Collect() to free all free lists. Note: PySet_ClearFreeList() did nothing.
* bpo-40429: PyFrame_GetCode() now returns a strong reference (GH-19773)Victor Stinner2020-04-283-8/+12
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* bpo-40429: PyFrame_GetCode() result cannot be NULL (GH-19772)Victor Stinner2020-04-282-10/+8
| | | Add frame_nslots() to factorize duplicate code.
* bpo-40421: Add PyFrame_GetCode() function (GH-19757)Victor Stinner2020-04-283-16/+22
| | | | | | | | | PyFrame_GetCode(frame): return a borrowed reference to the frame code. Replace frame->f_code with PyFrame_GetCode(frame) in most code, except in frameobject.c, genobject.c and ceval.c. Also add PyFrame_GetLineNumber() to the limited C API.
* bpo-40334: Support CO_FUTURE_BARRY_AS_BDFL in the new parser (GH-19721)Pablo Galindo2020-04-271-2/+2
| | | This commit also allows to pass flags to the new parser in all interfaces and fixes a bug in the parser generator that was causing to inline rules with actions, making them disappear.
* bpo-40048: Fix _PyCode_InitOpcache() error path (GH-19691)Victor Stinner2020-04-241-1/+1
| | | | | | If _PyCode_InitOpcache() fails in _PyEval_EvalFrameDefault(), use "goto exit_eval_frame;" rather than "return NULL;" to exit the function in a consistent state. For example, tstate->frame is now reset properly.
* bpo-40334: Use old compiler when compile mode is func_type (GH-19692)Guido van Rossum2020-04-231-1/+1
| | | | | This is invoked by mypy, using ast.parse(source, "<func_type>", "func_type"). Since the new grammar doesn't yet support the func_type_input start symbol we must use the old compiler in this case to prevent a crash. https://bugs.python.org/issue40334
* bpo-40334: Improve various PEG-Parser related stuff (GH-19669)Lysandros Nikolaou2020-04-231-1/+1
| | | The changes in this commit are all related to @vstinner's original review comments of the initial PEP 617 implementation PR.
* bpo-40334: Don't downcast from Py_ssize_t to int (GH-19671)Pablo Galindo2020-04-231-1/+1
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* bpo-40334: Rename PyConfig.use_peg to _use_peg_parser (GH-19670)Victor Stinner2020-04-234-16/+14
| | | | | | | | | | | * Rename PyConfig.use_peg to _use_peg_parser * Document PyConfig._use_peg_parser and mark it a deprecated * Mark -X oldparser option and PYTHONOLDPARSER env var as deprecated in the documentation. * Add use_old_parser() and skip_if_new_parser() to test.support * Remove sys.flags.use_peg: use_old_parser() uses _testinternalcapi.get_configs() instead. * Enhance test_embed tests * subprocess._args_from_interpreter_flags() copies -X oldparser
* bpo-40334: PEP 617 implementation: New PEG parser for CPython (GH-19503)Pablo Galindo2020-04-228-57/+182
| | | | Co-authored-by: Guido van Rossum <guido@python.org> Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
* bpo-39562: Prevent collision of future and compiler flags (GH-19230)Batuhan Taşkaya2020-04-221-1/+1
| | | | | | The constant values of future flags in the __future__ module is updated in order to prevent collision with compiler flags. Previously PyCF_ALLOW_TOP_LEVEL_AWAIT was clashing with CO_FUTURE_DIVISION.
* bpo-40313: speed up bytes.hex() (GH-19594)sweeneyde2020-04-211-12/+49
| | | Automerge-Triggered-By: @gpshead
* Add spaces around the ":=" operator in ast_unparse.c (GH-19568)Hakan Çelik2020-04-181-1/+1
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* bpo-40302: Replace PY_INT64_T with int64_t (GH-19573)Victor Stinner2020-04-171-3/+3
| | | | | | | | | * Replace PY_INT64_T with int64_t * Replace PY_UINT32_T with uint32_t * Replace PY_UINT64_T with uint64_t sha3module.c no longer checks if PY_UINT64_T is defined since it's always defined and uint64_t is always available on platforms supported by Python.
* Optimize _Py_strhex_impl() (GH-19535)Victor Stinner2020-04-151-24/+26
| | | | | | | Avoid a temporary buffer to create a bytes string: use PyBytes_FromStringAndSize() to directly allocate a bytes object. Cleanup also the code: PEP 7 formatting, move variable definitions closer to where they are used. Fix assertion checking "j" index.
* bpo-40268: Remove unused imports in pylifecycle.c (GH-19533)Victor Stinner2020-04-154-61/+50
| | | | | | | | | | Remove unused imports in files: * initconfig.c * main.c * preconfig.h * pylifecycle.c * python.c * pythonrun.c
* bpo-40268: Remove unused osdefs.h includes (GH-19532)Victor Stinner2020-04-157-8/+5
| | | When the include is needed, add required symbol in a comment.
* bpo-40268: Remove unused pycore_pymem.h includes (GH-19531)Victor Stinner2020-04-157-11/+10
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* bpo-40268: Remove unused structmember.h includes (GH-19530)Victor Stinner2020-04-157-9/+7
| | | | | | If only offsetof() is needed: include stddef.h instead. When structmember.h is used, add a comment explaining that PyMemberDef is used.
* bpo-40268: Remove explicit pythread.h includes (#19529)Victor Stinner2020-04-155-8/+0
| | | | Remove explicit pythread.h includes: it is always included by Python.h.
* bpo-39481: PEP 585 for dataclasses, mailbox, contextvars (GH-19425)Ethan Smith2020-04-141-9/+9
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* bpo-39522: Always initialise kind attribute in constant ast nodes (GH-19525)Pablo Galindo2020-04-141-0/+1
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* bpo-39522: Use _PyUnicodeWriter_WriteStr instead of PyUnicode_AS_DATA (GH-19523)Batuhan Taşkaya2020-04-141-2/+4
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* bpo-395222: Correctly unparse unicode prefix in ast_unparse.c (GH-19512)Batuhan Taşkaya2020-04-141-0/+2
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* bpo-40170: Convert PyObject_IS_GC() macro to a function (GH-19464)Hai Shi2020-04-141-1/+2
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* bpo-40268: Move struct _gc_runtime_state to pycore_gc.h (GH-19515)Victor Stinner2020-04-141-2/+3
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* bpo-40232: Update PyOS_AfterFork_Child() to use _PyThread_at_fork_reinit() ↵Dong-hee Na2020-04-143-10/+14
| | | | (GH-19450)
* bpo-40268: Remove a few pycore_pystate.h includes (GH-19510)Victor Stinner2020-04-1419-31/+32
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* bpo-40268: Rename _PyInterpreterState_GET_UNSAFE() (GH-19509)Victor Stinner2020-04-1412-24/+24
| | | | | | | Rename _PyInterpreterState_GET_UNSAFE() to _PyInterpreterState_GET() for consistency with _PyThreadState_GET() and to have a shorter name (help to fit into 80 columns). Add also "assert(tstate != NULL);" to the function.
* bpo-40268: Include explicitly pycore_interp.h (GH-19505)Victor Stinner2020-04-149-4/+14
| | | | pycore_pystate.h no longer includes pycore_interp.h: it's now included explicitly in files accessing PyInterpreterState.
* bpo-32894: Support unparsing of infinity numbers in ast_unparser.c (GH-17426)Batuhan Taşkaya2020-04-131-5/+53
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* bpo-40268: Add pycore_runtime.h header file (GH-19493)Victor Stinner2020-04-132-4/+3
| | | | | | Move PyRuntimeState from pycore_pystate.h to pycore_runtime.h. Remove _PyGILState_check_enabled macro: access directly _PyRuntime.gilstate.check_enabled.
* bpo-40268: Add _PyInterpreterState_GetConfig() (GH-19492)Victor Stinner2020-04-139-38/+58
| | | | | | | | Don't access PyInterpreterState.config member directly anymore, but use new functions: * _PyInterpreterState_GetConfig() * _PyInterpreterState_SetConfig() * _Py_GetConfig()
* bpo-40246: Report a better error message for invalid string prefixes (GH-19476)Lysandros Nikolaou2020-04-121-0/+3
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* bpo-39943: Add the const qualifier to pointers on non-mutable PyBytes data. ↵Serhiy Storchaka2020-04-121-1/+1
| | | | (GH-19472)
* bpo-39943: Add the const qualifier to pointers on non-mutable PyUnicode ↵Serhiy Storchaka2020-04-116-23/+21
| | | | data. (GH-19345)
* bpo-40082: trip_signal() uses the main interpreter (GH-19441)Victor Stinner2020-04-082-64/+69
| | | | | | | | | | | | | | | | | | | | | | Fix the signal handler: it now always uses the main interpreter, rather than trying to get the current Python thread state. The following function now accepts an interpreter, instead of a Python thread state: * _PyEval_SignalReceived() * _Py_ThreadCanHandleSignals() * _PyEval_AddPendingCall() * COMPUTE_EVAL_BREAKER() * SET_GIL_DROP_REQUEST(), RESET_GIL_DROP_REQUEST() * SIGNAL_PENDING_CALLS(), UNSIGNAL_PENDING_CALLS() * SIGNAL_PENDING_SIGNALS(), UNSIGNAL_PENDING_SIGNALS() * SIGNAL_ASYNC_EXC(), UNSIGNAL_ASYNC_EXC() Py_AddPendingCall() now uses the main interpreter if it fails to the current Python thread state. Convert _PyThreadState_GET() and PyInterpreterState_GET_UNSAFE() macros to static inline functions.
* bpo-37127: Remove _pending_calls.finishing (GH-19439)Victor Stinner2020-04-081-16/+0
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* bpo-40226: PyInterpreterState_Delete() deletes pending calls (GH-19436)Victor Stinner2020-04-083-49/+105
| | | | | | | | | | | | | | | PyInterpreterState_New() is now responsible to create pending calls, PyInterpreterState_Delete() now deletes pending calls. * Rename _PyEval_InitThreads() to _PyEval_InitGIL() and rename _PyEval_InitGIL() to _PyEval_FiniGIL(). * _PyEval_InitState() and PyEval_FiniState() now create and delete pending calls. _PyEval_InitState() now returns -1 on memory allocation failure. * Add init_interp_create_gil() helper function: code shared by Py_NewInterpreter() and Py_InitializeFromConfig(). * init_interp_create_gil() now also calls _PyEval_FiniGIL(), _PyEval_InitGIL() and _PyGILState_Init() in subinterpreters, but these functions now do nothing when called from a subinterpreter.
* bpo-40170: Add _PyIndex_Check() internal function (GH-19426)Victor Stinner2020-04-082-3/+5
| | | | | | | | | Add _PyIndex_Check() function to the internal C API: fast inlined verson of PyIndex_Check(). Add Include/internal/pycore_abstract.h header file. Replace PyIndex_Check() with _PyIndex_Check() in C files of Objects and Python subdirectories.
* bpo-40089: Add _at_fork_reinit() method to locks (GH-19195)Victor Stinner2020-04-071-0/+20
| | | | | | | | | | | | | | | Add a private _at_fork_reinit() method to _thread.Lock, _thread.RLock, threading.RLock and threading.Condition classes: reinitialize the lock after fork in the child process; reset the lock to the unlocked state. Rename also the private _reset_internal_locks() method of threading.Event to _at_fork_reinit(). * Add _PyThread_at_fork_reinit() private function. It is excluded from the limited C API. * threading.Thread._reset_internal_locks() now calls _at_fork_reinit() on self._tstate_lock rather than creating a new Python lock object.
* bpo-40147: Fix a compiler warning on Windows in Python/compile.c (GH-19389)Zackery Spytz2020-04-061-4/+5
| | | Change the type of nkeywords to Py_ssize_t.
* closes bpo-40184: Only define pysiphash if the hash algorithm is SIPHASH24. ↵Batuhan Taşkaya2020-04-041-7/+7
| | | | (GH-19369)
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