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* Fix strict-aliasing rules errors on gcc 4.8.5. (GH-16714)Miss Islington (bot)2019-10-141-1/+1
| | | | | (cherry picked from commit c39d1ddc012987e2159a997e27665d2d579c0ce0) Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>
* bpo-38409: Fix grammar in str.strip() docstring (GH-16682) (GH-16684)Miss Islington (bot)2019-10-092-4/+4
| | | (cherry picked from commit 09895c27cd8ff60563a794016e8c099bc897cc74)
* [3.8] bpo-38395: Fix ownership in weakref.proxy methods (GH-16632) (GH-16662)Pablo Galindo2019-10-081-31/+88
| | | | | | | | | | | | | | | | The implementation of weakref.proxy's methods call back into the Python API using a borrowed references of the weakly referenced object (acquired via PyWeakref_GET_OBJECT). This API call may delete the last reference to the object (either directly or via GC), leaving a dangling pointer, which can be subsequently dereferenced. To fix this, claim a temporary ownership of the referenced object when calling the appropriate method. Some functions because at the moment they do not need to access the borrowed referent, but to protect against future changes to these functions, ownership need to be fixed in all potentially affected methods.. (cherry picked from commit 10cd00a9e3c22af37c748ea5a417f6fb66601e21) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-38383: Fix possible integer overflow in startswith() of bytes and ↵Miss Islington (bot)2019-10-061-1/+1
| | | | | | | bytearray. (GH-16603) (cherry picked from commit 24ddd9c2d6ab61cbce7e68d6de36d4df9bd2c3fb) Co-authored-by: Hai Shi <shihai1992@gmail.com>
* Restore tp_clear for function object. (#16502)Neil Schemenauer2019-10-011-13/+21
| | | | | This is a revert of the revert (GH-15826). Having a tp_clear for functions should be safe (and helpful) now that bpo-38006 has been fixed.
* bpo-30773: Fix ag_running; prohibit running athrow/asend/aclose in parallel ↵Miss Islington (bot)2019-09-301-2/+34
| | | | | | | (GH-7468) (#16486) (cherry picked from commit fc4a044a3c54ce21e9ed150f7d769fb479d34c49) Co-authored-by: Yury Selivanov <yury@magic.io>
* bpo-38115: Deal with invalid bytecode offsets in lnotab (GH-16079) (GH-16464)Gregory P. Smith2019-09-281-1/+3
| | | | | | | | | | | | Document that lnotab can contain invalid bytecode offsets (because of terrible reasons that are difficult to fix). Make dis.findlinestarts() ignore invalid offsets in lnotab. All other uses of lnotab in CPython (various reimplementations of addr2line or line2addr in Python, C and gdb) already ignore this, because they take an address to look for, instead. Add tests for the result of dis.findlinestarts() on wacky constructs in test_peepholer.py, because it's the easiest place to add them. (cherry picked from commit c8165036f374cd2ee64d4314eeb2514f7acb5026)
* bpo-38005: Remove support of string argument in InterpreterID(). (GH-16227)Miss Islington (bot)2019-09-251-50/+31
| | | | | | Make negative interpreter id to raise ValueError instead of RuntimeError. (cherry picked from commit 543a3951a1c96bae0ea839eacec71d3b1a563a10) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-38236: Dump path config at first import error (GH-16300) (GH-16332)Victor Stinner2019-09-231-8/+11
| | | | | | Python now dumps path configuration if it fails to import the Python codecs of the filesystem and stdio encodings. (cherry picked from commit fcdb027234566c4d506d6d753c7d5638490fb088)
* [3.8] bpo-38070: Py_FatalError() logs runtime state (GH-16258)Victor Stinner2019-09-181-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * bpo-38070: _Py_DumpTraceback() writes <no Python frame> (GH-16244) When a Python thread has no frame, _Py_DumpTraceback() and _Py_DumpTracebackThreads() now write "<no Python frame>", rather than writing nothing. (cherry picked from commit 8fa3e1740b3f03ea65ddb68411c2238c5f98eec2) * bpo-38070: Enhance _PyObject_Dump() (GH-16243) _PyObject_Dump() now dumps the object address for freed objects and objects with ob_type=NULL. (cherry picked from commit b39afb78768418d9405c4b528c80fa968ccc974d) * bpo-38070: Add _PyRuntimeState.preinitializing (GH-16245) Add _PyRuntimeState.preinitializing field: set to 1 while Py_PreInitialize() is running. _PyRuntimeState: rename also pre_initialized field to preinitialized. (cherry picked from commit d3b904144e86e2442961de6a7dccecbe133d5c6d) * bpo-38070: Py_FatalError() logs runtime state (GH-16246) (cherry picked from commit 1ce16fb0977283ae42a9f8917bbca5f44aa69324)
* bpo-38013: make async_generator_athrow object tolerant to throwing ↵Miss Islington (bot)2019-09-171-5/+0
| | | | | | | | | | | | | exceptions (GH-16070) Even when the helper is not started yet. This behavior follows conventional generator one. There is no reason for `async_generator_athrow` to handle `gen.throw()` differently. https://bugs.python.org/issue38013 (cherry picked from commit c275312a6284bd319ea33c9abd7e15c230eca43f) Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>
* [3.8] bpo-38005: Fixed comparing and creating of InterpreterID and ↵Serhiy Storchaka2019-09-141-51/+49
| | | | | | | | | | | | | | ChannelID. (GH-15652) (GH-16145) * Fix a crash in comparing with float (and maybe other crashes). * They are now never equal to strings and non-integer numbers. * Comparison with a large number no longer raises OverflowError. * Arbitrary exceptions no longer silenced in constructors and comparisons. * TypeError raised in the constructor contains now the name of the type. * Accept only ChannelID and int-like objects in channel functions. * Accept only InterpreterId, int-like objects and str in the InterpreterId constructor. * Accept int-like objects, not just int in interpreter related functions. (cherry picked from commit bf169915ecdd42329726104278eb723a7dda2736)
* [3.8] bpo-37206: Unrepresentable default values no longer represented as ↵Serhiy Storchaka2019-09-149-23/+23
| | | | | | | | | | None. (GH-13933) (GH-16141) In ArgumentClinic, value "NULL" should now be used only for unrepresentable default values (like in the optional third parameter of getattr). "None" should be used if None is accepted as argument and passing None has the same effect as not passing the argument at all. (cherry picked from commit 279f44678c8b84a183f9eeb85e0b086228154497) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-38096: Complete the "structseq" and "named tuple" cleanup (GH-16010) ↵Miss Islington (bot)2019-09-121-2/+8
| | | | | | | (GH-16062) (cherry picked from commit 4210ad5ebd5769f585035e022876e161cd0e9a3e) Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
* [3.8] bpo-37879: Suppress subtype_dealloc decref when base type is a C heap ↵Petr Viktorin2019-09-121-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | type (GH-15323, GH-16004) (GH-15966) The instance destructor for a type is responsible for preparing an instance for deallocation by decrementing the reference counts of its referents. If an instance belongs to a heap type, the type object of an instance has its reference count decremented while for static types, which are permanently allocated, the type object is unaffected by the instance destructor. Previously, the default instance destructor searched the class hierarchy for an inherited instance destructor and, if present, would invoke it. Then, if the instance type is a heap type, it would decrement the reference count of that heap type. However, this could result in the premature destruction of a type because the inherited instance destructor should have already decremented the reference count of the type object. This change avoids the premature destruction of the type object by suppressing the decrement of its reference count when an inherited, non-default instance destructor has been invoked. Finally, an assertion on the Py_SIZE of a type was deleted. Heap types have a non zero size, making this into an incorrect assertion. https://github.com/python/cpython/pull/15323. (cherry picked from commit ff023ed36ea260ab64be5895f1f1f087c798987a) Fixup: https://github.com/python/cpython/pull/16004. (cherry picked from commit 5e9caeec76119a0d61c25f1466c27b7dbd5115bd) Co-authored-by: Eddie Elizondo <eduardo.elizondorueda@gmail.com>
* bpo-38096: Clean up the "struct sequence" / "named tuple" docs (GH-15895) ↵Paul Ganssle2019-09-122-2/+2
| | | | (GH-15961)
* Doc: Fix typo in fastsearch comments (GH-14608) (GH-15933)Miss Islington (bot)2019-09-111-2/+2
| | | | | (cherry picked from commit 60bba83b5d9947fb3106325293e3a4e9c9cdea7e) Co-authored-by: Valentin Haenel <esc@users.noreply.github.com>
* Remove unneeded assignment in PyBytes_Concat() (GH-15274)Miss Islington (bot)2019-09-101-1/+0
| | | | | | The `wb.len = -1` assignment is unneeded since its introduction in 161d695fb0455ce52530d4f43a9eac4c738f64bb as `PyObject_GetBuffer` always fills it in. (cherry picked from commit afdeb189e97033b54cef44a7490d89d2013cb4e5) Co-authored-by: Sergey Fedoseev <fedoseev.sergey@gmail.com>
* bpo-37619: update_one_slot() should not ignore wrapper descriptors for wrong ↵Miss Islington (bot)2019-09-101-6/+13
| | | | | | | type (GH-15838) (cherry picked from commit 57ea33560662e0f20a3b0334bb20065771edf4da) Co-authored-by: Jeroen Demeyer <J.Demeyer@UGent.be>
* Fix typo in dict object comment (GH-15814)Miss Islington (bot)2019-09-101-1/+1
| | | | | (cherry picked from commit 359143c68659d165f52320d368667e0eff279dc5) Co-authored-by: dalgarno <32097481+dalgarno@users.noreply.github.com>
* Revert "bpo-33418: Add tp_clear for function object (GH-8058)" (GH-15826)Victor Stinner2019-09-101-21/+13
| | | This reverts commit 3c452404ae178b742967589a0bb4a5ec768d76e0.
* [3.8] bpo-37994: Fix silencing all errors if an attribute lookup fails. ↵Serhiy Storchaka2019-09-016-90/+95
| | | | | | | (GH-15630) (GH-15635) Only AttributeError should be silenced. (cherry picked from commit 41c57b335330ff48af098d47e379e0f9ba09d233)
* Fix typos mostly in comments, docs and test names (GH-15209)Miss Islington (bot)2019-08-302-2/+2
| | | | | (cherry picked from commit 39d87b54715197ca9dcb6902bb43461c0ed701a2) Co-authored-by: Min ho Kim <minho42@gmail.com>
* [3.8] bpo-37034: Display argument name on errors with keyword arguments with ↵Serhiy Storchaka2019-08-2910-56/+56
| | | | | | | Argument Clinic. (GH-13593). (GH-15599) (cherry picked from commit 4901fe274bc82b95dc89bcb3de8802a3dfedab32) Co-authored-by: Rémi Lapeyre <remi.lapeyre@henki.fr>
* Fix unused variable and signed/unsigned warnings (GH-15537) (GH-15551)Miss Islington (bot)2019-08-271-0/+6
| | | | | (cherry picked from commit 0138c4ceab1e10d42d0aa962d2ae079b46da7671) Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
* [3.8] bpo-37757: Disallow PEP 572 cases that expose implementation details ↵Nick Coghlan2019-08-251-9/+0
| | | | | | | | | | | | | | | | | | | (GH-15491) - drop TargetScopeError in favour of raising SyntaxError directly as per the updated PEP 572 - comprehension iteration variables are explicitly local, but named expression targets in comprehensions are nonlocal or global. Raise SyntaxError as specified in PEP 572 - named expression targets in the outermost iterable of a comprehension have an ambiguous target scope. Avoid resolving that question now by raising SyntaxError. PEP 572 originally required this only for cases where the bound name conflicts with the iteration variable in the comprehension, but CPython can't easily restrict the exception to that case (as it doesn't know the target variable names when visiting the outermost iterator expression) (cherry picked from commit 5dbe0f59b7a4f39c7c606b48056bc29e406ebf78)
* [3.8] bpo-37830: Fix compilation of break and continue in finally. ↵Serhiy Storchaka2019-08-241-7/+16
| | | | | | | | | (GH-15320) (GH-15456) Fix compilation of "break" and "continue" in the "finally" block when the corresponding "try" block contains "return" with a non-constant value. (cherry picked from commit ef61c524ddeeb56da3858b86e349e7288d68178e)
* bpo-36311: Fixes decoding multibyte characters around chunk boundaries and ↵Miss Islington (bot)2019-08-211-6/+10
| | | | | | | improves decoding performance (GH-15083) (cherry picked from commit 7ebdda0dbee7df6f0c945a7e1e623e47676e112d) Co-authored-by: Steve Dower <steve.dower@python.org>
* bpo-37732: Fix GCC warning in _PyObject_Malloc() (GH-15333) (GH-15342)Victor Stinner2019-08-201-17/+15
| | | | | | | | | pymalloc_alloc() now returns directly the pointer, return NULL on memory allocation error. allocate_from_new_pool() already uses NULL as marker for "allocation failed". (cherry picked from commit 18f8dcfa10d8a858b152d12a9ad8fa83b7e967f0)
* bpo-37681: no_sanitize_thread support from GCC 5.1 (GH-15096)Miss Islington (bot)2019-08-141-2/+2
| | | | | | | Fix the following warning with GCC 4.8.5: Objects/obmalloc.c: warning: ‘no_sanitize_thread’ attribute directive ignored (cherry picked from commit 7e479c82218450255572e3f5fa1549dc283901ea) Co-authored-by: Hai Shi <shihai1992@gmail.com>
* [3.8] bpo-36974: separate vectorcall functions for each calling convention ↵Jeroen Demeyer2019-07-233-78/+354
| | | | (GH-13781) (#14782)
* bpo-37233: optimize method_vectorcall in case of totalargs == 0 (GH-14550)Miss Islington (bot)2019-07-031-6/+10
| | | | | (cherry picked from commit 53c214344038341ce86fcf7efa12dc33be9d5b45) Co-authored-by: Jeroen Demeyer <J.Demeyer@UGent.be>
* [3.8] bpo-37233: use _PY_FASTCALL_SMALL_STACK in method_vectorcall (GH-13974)Inada Naoki2019-07-031-5/+13
| | | | | (cherry picked from commit 988e6aa322fb61651812fa5a61ec73316c71b041) Co-authored-by: Jeroen Demeyer <J.Demeyer@UGent.be>
* Stop using Argument Clinic for dict_pop (GH-13935)Inada Naoki2019-07-022-50/+28
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* bpo-37221: Add PyCode_NewWithPosOnlyArgs to be used internally and set ↵Miss Islington (bot)2019-07-011-15/+31
| | | | | | | | PyCode_New as a compatibility wrapper (GH-13959) (#14505) Add PyCode_NewEx to be used internally and set PyCode_New as a compatibility wrapper (cherry picked from commit 4a2edc34a405150d0b23ecfdcb401e7cf59f4650) Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
* bpo-37417: Fix error handling in bytearray.extend. (GH-14407)Miss Islington (bot)2019-06-261-0/+4
| | | | | (cherry picked from commit 2a7d596f27b2342caf168a03c95ebf3b56e5dbbd) Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
* bpo-24214: Fixed the UTF-8 and UTF-16 incremental decoders. (GH-14304)Miss Islington (bot)2019-06-252-6/+10
| | | | | | | | | * The UTF-8 incremental decoders fails now fast if encounter a sequence that can't be handled by the error handler. * The UTF-16 incremental decoders with the surrogatepass error handler decodes now a lone low surrogate with final=False. (cherry picked from commit 894263ba80af4b7733c2df95b527e96953922656) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* bpo-36974: inherit tp_vectorcall_offset unconditionally (GH-13858) (GH-14342)Miss Islington (bot)2019-06-252-7/+7
| | | | | (cherry picked from commit a8b27e623d75377aabe50df27e97cab4e81a174a) Co-authored-by: Jeroen Demeyer <J.Demeyer@UGent.be>
* bpo-36922: use Py_TPFLAGS_METHOD_DESCRIPTOR in lookup_maybe_method() (GH-13865)Miss Islington (bot)2019-06-171-1/+1
| | | | | (cherry picked from commit 2e9954d3472a23919b96323fcd5bb6c1d6927155) Co-authored-by: Jeroen Demeyer <J.Demeyer@UGent.be>
* bpo-37236: pragma optimize off for _Py_c_quot on Windows arm64 (GH-13983)Miss Islington (bot)2019-06-121-0/+7
| | | | | (cherry picked from commit ff6bb0aa95259413f359d42410526ff0b4dccfb7) Co-authored-by: Paul Monson <paulmon@users.noreply.github.com>
* bpo-26219: Fix compiler warning in _PyCode_InitOpcache() (GH-13997) (GH-14000)Miss Islington (bot)2019-06-121-1/+1
| | | | | | | | | | Fix MSVC warning: objects\codeobject.c(285): warning C4244: '=': conversion from 'Py_ssize_t' to 'unsigned char', possible loss of data (cherry picked from commit 376ce9852eec4e97745c723f0dd0fe64383c6cd3) Co-authored-by: Victor Stinner <vstinner@redhat.com>
* bpo-37219: Remove erroneous optimization for differencing an empty set ↵Miss Islington (bot)2019-06-111-8/+0
| | | | | | | (GH-13965) (GH-13967) (cherry picked from commit 1f11cf9521114447b3e32e2ac88f075ffaa37555) Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
* bpo-37138: fix undefined behaviour with memcpy() on NULL array (GH-13867)Miss Islington (bot)2019-06-071-1/+5
| | | | | (cherry picked from commit 1f9531764cc0f8dbca1d8f429d162dc28282f4b4) Co-authored-by: Jeroen Demeyer <J.Demeyer@UGent.be>
* [3.8] bpo-37170: Fix the cast on error in PyLong_AsUnsignedLongLongMask() ↵Zackery Spytz2019-06-071-2/+2
| | | | | | | (GH-13860) (GH-13891) (cherry picked from commit dc2476500d91082f0c907772c83a044bf49af279) Co-authored-by: Zackery Spytz <zspytz@gmail.com>
* bpo-26219: Fix compiler warning in _PyCode_InitOpcache() (GH-13809)Victor Stinner2019-06-041-1/+2
| | | | | | Fix this MSVC warning: objects\codeobject.c(264): warning C4244: '=': conversion from 'Py_ssize_t' to 'unsigned char', possible loss of data
* bpo-26219: per opcode cache for LOAD_GLOBAL (GH-12884)Inada Naoki2019-06-032-12/+78
| | | | | | This patch implements per opcode cache mechanism, and use it in only LOAD_GLOBAL opcode. Based on Yury's opcache3.patch in bpo-26219.
* bpo-36027: Really fix "incompatible pointer type" compiler warning (GH-13761)Petr Viktorin2019-06-031-1/+1
| | | Apologies for the earlier hasty attempt.
* bpo-36974: add some assertions for PEP 590 (GH-13682)Jeroen Demeyer2019-06-021-0/+14
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* bpo-37012: Clean up special cases in PyType_FromSpecWithBases slot ↵Petr Viktorin2019-06-021-9/+11
| | | | | | | | | assignments (GH-13496) The main slot assignment loop is now if-else if ladder, making the control flow clearer. Based on suggestion by Victor Stinner in: https://github.com/python/cpython/pull/10304/#issuecomment-491123026
* bpo-36027 bpo-36974: Fix "incompatible pointer type" compiler warnings ↵Petr Viktorin2019-06-021-1/+1
| | | | (GH-13758)
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