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* bpo-39776: Lock ++interp->tstate_next_unique_id. (GH-18746) (#18746)Stefan Krah2020-03-021-2/+1
| | | | - Threads created by PyGILState_Ensure() could have a duplicate tstate->id.
* bpo-39831: Fix a reference leak in PyErr_WarnEx(). (GH-18750)Serhiy Storchaka2020-03-021-2/+3
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* bpo-39796: Fix _warnings module initialization (GH-18739)Victor Stinner2020-03-022-15/+27
| | | | | | | | | * Add _PyWarnings_InitState() which only initializes the _warnings module state (tstate->interp->warnings) without creating a module object * Py_InitializeFromConfig() now calls _PyWarnings_InitState() instead of _PyWarnings_Init() * Rename also private functions of _warnings.c to avoid confusion between the public C API and the private C API.
* bpo-38913: Fix segfault in Py_BuildValue("(s#O)", ...) if entered with ↵Serhiy Storchaka2020-03-021-3/+3
| | | | exception raised. (GH-18656)
* closes bpo-39803: Remove unused str from _PyLong_FormatAdvancedWriter. ↵Andy Lester2020-03-011-2/+1
| | | | (GH-18709)
* bpo-39520: Fix un-parsing of ext slices with no dimensions (GH-18304)Batuhan Taşkaya2020-03-011-0/+1
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* Reuse identifier of PREDICT macros as PREDICT_ID (GH-17155)Denis Chernikov2020-02-211-5/+7
| | | | In function `_PyEval_EvalFrameDefault`, macros PREDICT and PREDICTED use the same identifier creation scheme, which may be shared between them, reducing code repetition, and do ensure that the same identifier is generated.
* Revert "bpo-38691 Added a switch to ignore PYTHONCASEOK when -E or -I flags ↵Victor Stinner2020-02-191-2649/+2646
| | | | | passed (#18314)" (GH-18553) This reverts commit d83b6600b25487e4ebffd7949d0f478de9538875.
* bpo-39573: Clean up modules and headers to use Py_IS_TYPE() function (GH-18521)Dong-hee Na2020-02-171-3/+3
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* bpo-38691 Added a switch to ignore PYTHONCASEOK when -E or -I flags passed ↵idomic2020-02-171-2646/+2649
| | | | | | | | | | | | | | | | | | | | | (#18314) * Hard reset + cherry piciking the changes. * 📜🤖 Added by blurb_it. * Added @vstinner News * Update Misc/NEWS.d/next/Library/2020-02-11-13-01-38.bpo-38691.oND8Sk.rst Co-Authored-By: Victor Stinner <vstinner@python.org> * Hard reset to master * Hard reset to master + latest changes Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Victor Stinner <vstinner@python.org>
* closes bpo-39630: Update pointers to string literals to be const char *. ↵Andy Lester2020-02-142-2/+2
| | | | (GH-18510)
* bpo-35081: Move dtoa.h header to the internal C API (GH-18489)Victor Stinner2020-02-122-0/+2
| | | | | | | Move the dtoa.h header file to the internal C API as pycore_dtoa.h: it only contains private functions (prefixed by "_Py"). The math and cmath modules must now be compiled with the Py_BUILD_CORE macro defined.
* bpo-39474: Fix AST pos for expressions like (a)(b), (a)[b] and (a).b. (GH-18477)Serhiy Storchaka2020-02-121-18/+18
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* bpo-32856: Optimize the assignment idiom in comprehensions. (GH-16814)Serhiy Storchaka2020-02-121-18/+52
| | | | | Now `for y in [expr]` in comprehensions is as fast as a simple assignment `y = expr`.
* closes bpo-39605: Fix some casts to not cast away const. (GH-18453)Andy Lester2020-02-124-6/+6
| | | | | | | | | | | | | | | gcc -Wcast-qual turns up a number of instances of casting away constness of pointers. Some of these can be safely modified, by either: Adding the const to the type cast, as in: - return _PyUnicode_FromUCS1((unsigned char*)s, size); + return _PyUnicode_FromUCS1((const unsigned char*)s, size); or, Removing the cast entirely, because it's not necessary (but probably was at one time), as in: - PyDTrace_FUNCTION_ENTRY((char *)filename, (char *)funcname, lineno); + PyDTrace_FUNCTION_ENTRY(filename, funcname, lineno); These changes will not change code, but they will make it much easier to check for errors in consts
* bpo-39245: Switch to public API for Vectorcall (GH-18460)Petr Viktorin2020-02-117-25/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The bulk of this patch was generated automatically with: for name in \ PyObject_Vectorcall \ Py_TPFLAGS_HAVE_VECTORCALL \ PyObject_VectorcallMethod \ PyVectorcall_Function \ PyObject_CallOneArg \ PyObject_CallMethodNoArgs \ PyObject_CallMethodOneArg \ ; do echo $name git grep -lwz _$name | xargs -0 sed -i "s/\b_$name\b/$name/g" done old=_PyObject_FastCallDict new=PyObject_VectorcallDict git grep -lwz $old | xargs -0 sed -i "s/\b$old\b/$new/g" and then cleaned up: - Revert changes to in docs & news - Revert changes to backcompat defines in headers - Nudge misaligned comments
* bpo-39579: Fix Attribute end_col_offset to point at the current node (GH-18405)Lysandros Nikolaou2020-02-071-2/+3
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* bpo-39573: Use Py_SET_SIZE() function (GH-18402)Victor Stinner2020-02-073-4/+4
| | | | Replace direct acccess to PyVarObject.ob_size with usage of the Py_SET_SIZE() function.
* bpo-39502: Fix 64-bit Python PyTime_localtime() on AIX (GH-18285)Michael Felt2020-02-071-1/+1
| | | Fix time.localtime() on 64-bit AIX to support years before 1902 and after 2038.
* bpo-39573: Use Py_TYPE() macro in Python and Include directories (GH-18391)Victor Stinner2020-02-079-29/+29
| | | Replace direct access to PyObject.ob_type with Py_TYPE().
* bpo-39573: Use Py_REFCNT() macro (GH-18388)Victor Stinner2020-02-061-1/+1
| | | | Replace direct acccess to PyObject.ob_refcnt with usage of the Py_REFCNT() macro.
* bpo-38823: Fix refleaks in _ast initialization error path (GH-17276)Brandt Bucher2020-02-061-176/+354
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* bpo-39127: Make _Py_HashPointer's argument be const (GH-17690)Andy Lester2020-02-051-1/+1
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* bpo-39542: Declare _Py_AddToAllObjects() in pycore_object.h (GH-18368)Victor Stinner2020-02-051-1/+2
| | | | | | _Py_AddToAllObjects() is used in bltinmodule.c and typeobject.c when Py_TRACE_REFS is defined. Fix Py_TRACE_REFS build.
* bpo-39553: Delete HAVE_SXS protected code (GH-18356)Zackery Spytz2020-02-051-15/+0
| | | | | | | https://bugs.python.org/issue39553 Automerge-Triggered-By: @zooba
* bpo-38076 Clear the interpreter state only after clearing module globals ↵Eddie Elizondo2020-02-041-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (GH-18039) Currently, during runtime destruction, `_PyImport_Cleanup` is clearing the interpreter state before clearing out the modules themselves. This leads to a segfault on modules that rely on the module state to clear themselves up. For example, let's take the small snippet added in the issue by @DinoV : ``` import _struct class C: def __init__(self): self.pack = _struct.pack def __del__(self): self.pack('I', -42) _struct.x = C() ``` The module `_struct` uses the module state to run `pack`. Therefore, the module state has to be alive until after the module has been cleared out to successfully run `C.__del__`. This happens at line 606, when `_PyImport_Cleanup` calls `_PyModule_Clear`. In fact, the loop that calls `_PyModule_Clear` has in its comments: > Now, if there are any modules left alive, clear their globals to minimize potential leaks. All C extension modules actually end up here, since they are kept alive in the interpreter state. That means that we can't clear the module state (which is used by C Extensions) before we run that loop. Moving `_PyInterpreterState_ClearModules` until after it, fixes the segfault in the code snippet. Finally, this updates a test in `io` to correctly assert the error that it now throws (since it now finds the io module state). The test that uses this is: `test_create_at_shutdown_without_encoding`. Given this test is now working is a proof that the module state now stays alive even when `__del__` is called at module destruction time. Thus, I didn't add a new tests for this. https://bugs.python.org/issue38076
* bpo-39542: Move object.h debug functions to internal C API (GH-18331)Victor Stinner2020-02-032-0/+2
| | | | | | | | Move the following functions from the public C API to the internal C API: * _PyDebug_PrintTotalRefs(), * _Py_PrintReferenceAddresses() * _Py_PrintReferences()
* bpo-39489: Remove COUNT_ALLOCS special build (GH-18259)Victor Stinner2020-02-034-64/+1
| | | | | | | | | | | 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
* Update sum comment. (#18240)Brandt Bucher2020-02-011-1/+5
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* bpo-39511: PyThreadState_Clear() calls on_delete (GH-18296)Victor Stinner2020-02-011-3/+5
| | | | | | | | | | | | | | | | | | PyThreadState.on_delete is a callback used to notify Python when a thread completes. _thread._set_sentinel() function creates a lock which is released when the thread completes. It sets on_delete callback to the internal release_sentinel() function. This lock is known as Threading._tstate_lock in the threading module. The release_sentinel() function uses the Python C API. The problem is that on_delete is called late in the Python finalization, when the C API is no longer fully working. The PyThreadState_Clear() function now calls the PyThreadState.on_delete callback. Previously, that happened in PyThreadState_Delete(). The release_sentinel() function is now called when the C API is still fully working.
* bpo-39487: Merge duplicated _Py_IDENTIFIER identifiers in C code (GH-18254)Hai Shi2020-01-304-12/+7
| | | Moving repetitive `_Py_IDENTIFIER` instances to a global location helps identify them more easily in regards to sub-interpreter support.
* bpo-38631: Replace Py_FatalError() with assert() in ceval.c (GH-18279)Victor Stinner2020-01-301-10/+4
| | | | | | | Replace a few Py_FatalError() calls if tstate is NULL with assert(tstate != NULL) in ceval.c. PyEval_AcquireThread(), PyEval_ReleaseThread() and PyEval_RestoreThread() must never be called with a NULL tstate.
* bpo-38960: DTrace build fix for FreeBSD. (GH-17451)David Carlier2020-01-283-6/+6
| | | | | | | | DTrace build fix for FreeBSD. - allowing passing an extra flag as it need to define the arch size. - casting some probe's arguments.
* bpo-38644: Pass tstate in ceval.c (GH-18222)Victor Stinner2020-01-281-6/+6
| | | Pass explicitly the Python thread state (tstate) in ceval.c.
* bpo-38631: Avoid Py_FatalError() in _PyCodecRegistry_Init() (GH-18217)Victor Stinner2020-01-271-16/+21
| | | | _PyCodecRegistry_Init() now reports exceptions to the caller, rather than calling Py_FatalError().
* bpo-39320: Handle unpacking of **values in compiler (GH-18141)Mark Shannon2020-01-275-3642/+3653
| | | | | | | | | | | | | * Add DICT_UPDATE and DICT_MERGE bytecodes. Use them for ** unpacking. * Remove BUILD_MAP_UNPACK and BUILD_MAP_UNPACK_WITH_CALL, as they are now unused. * Update magic number for ** unpacking opcodes. * Update dis.rst to incorporate new bytecodes. * Add blurb entry.
* bpo-39320: Handle unpacking of *values in compiler (GH-17984)Mark Shannon2020-01-234-2308/+2300
| | | | | | | | * Add three new bytecodes: LIST_TO_TUPLE, LIST_EXTEND, SET_UPDATE. Use them to implement star unpacking expressions. * Remove four bytecodes BUILD_LIST_UNPACK, BUILD_TUPLE_UNPACK, BUILD_SET_UNPACK and BUILD_TUPLE_UNPACK_WITH_CALL opcodes as they are now unused. * Update magic number and dis.rst for new bytecodes.
* bpo-39427: Document -X opt options in the CLI --help and the man page (GH-18131)Pablo Galindo2020-01-231-1/+32
| | | | | | | https://bugs.python.org/issue39427 Automerge-Triggered-By: @pablogsal
* bpo-39336: Allow packages to not let their child modules be set on them (#18006)Dino Viehland2020-01-231-337/+346
| | | | | * bpo-39336: Allow setattr to fail on modules which aren't assignable When attaching a child module to a package if the object in sys.modules raises an AttributeError (e.g. because it is immutable) it causes the whole import to fail. This now allows immutable packages to exist and an ImportWarning is reported and the AttributeError exception is ignored.
* bpo-31031: Unify duplicate bits_in_digit and bit_length (GH-2866)Niklas Fiekas2020-01-161-0/+15
| | | Add _Py_bit_length() to unify duplicate bits_in_digit() and bit_length().
* Fix compiler warning on Windows (GH-18012)Ammar Askar2020-01-151-1/+1
| | | | | | | | Python-ast.h contains a macro named Yield that conflicts with the Yield macro in Windows system headers. While Python-ast.h has an "undef Yield" directive to prevent this, it means that Python-ast.h must be included before Windows header files or we run into a re-declaration warning. In commit c96be811fa7d an include for pycore_pystate.h was added which indirectly includes Windows header files. In this commit we re-order the includes to fix this warning.
* bpo-39164: Fix compiler warning in PyErr_GetExcInfo() (GH-18010)Victor Stinner2020-01-151-1/+1
| | | The function has no return value.
* bpo-39048: Look up __aenter__ before __aexit__ in async with (GH-17609)Géry Ogam2020-01-141-9/+10
| | | | | | * Reorder the __aenter__ and __aexit__ checks for async with * Add assertions for async with body being skipped * Swap __aexit__ and __aenter__ loading in the documentation
* bpo-39156: Break up COMPARE_OP into four logically distinct opcodes. (GH-17754)Mark Shannon2020-01-147-4753/+4780
| | | | | | | | Break up COMPARE_OP into four logically distinct opcodes: * COMPARE_OP for rich comparisons * IS_OP for 'is' and 'is not' tests * CONTAINS_OP for 'in' and 'is not' tests * JUMP_IF_NOT_EXC_MATCH for checking exceptions in 'try-except' statements.
* bpo-38644: Pass tstate to _Py_FinishPendingCalls() (GH-17990)Victor Stinner2020-01-132-3/+3
| | | | _Py_FinishPendingCalls() now expects a tstate argument, instead of a runtime argument.
* bpo-39164: Add private _PyErr_GetExcInfo() function (GH-17752)Julien Danjou2020-01-131-4/+10
| | | | | | This adds a new function named _PyErr_GetExcInfo() that is a variation of the original PyErr_GetExcInfo() taking a PyThreadState as its first argument. That function allows to retrieve the exceptions information of any Python thread -- not only the current one.
* Cleanup exit code for interpreter. (GH-17756)Mark Shannon2020-01-131-6/+5
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* bpo-39200: Correct the error message for min/max builtin function (GH-17814)Dong-hee Na2020-01-101-2/+7
| | | | Correct the error message when calling the min() or max() with no arguments.
* bpo-39166: Fix trace of last iteration of async for loops (#17800)Pablo Galindo2020-01-101-5/+9
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* bpo-39235: Fix end location for genexp in call args (GH-17925)Guido van Rossum2020-01-091-8/+8
| | | | | | The fix changes copy_location() to require an extra node from which to extract the end location, and fixing all 5 call sites. https://bugs.python.org/issue39235
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