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* bpo-41631: _ast module uses again a global state (#21961)Victor Stinner2020-09-152-253/+28
| | | | | | | | | | | | | | | | | Partially revert commit ac46eb4ad6662cf6d771b20d8963658b2186c48c: "bpo-38113: Update the Python-ast.c generator to PEP384 (gh-15957)". Using a module state per module instance is causing subtle practical problems. For example, the Mercurial project replaces the __import__() function to implement lazy import, whereas Python expected that "import _ast" always return a fully initialized _ast module. Add _PyAST_Fini() to clear the state at exit. The _ast module has no state (set _astmodule.m_size to 0). Remove astmodule_traverse(), astmodule_clear() and astmodule_free() functions.
* Fix compiler warnings in init_dump_ascii_wstr() (GH-22150)Victor Stinner2020-09-091-1/+1
| | | | | | | | | | | | | | | | | Fix GCC 9.3 (using -O3) warnings on x86: initconfig.c: In function ‘init_dump_ascii_wstr’: initconfig.c:2679:34: warning: format ‘%lc’ expects argument of type ‘wint_t’, but argument 2 has type ‘wchar_t’ {aka ‘long int’} 2679 | PySys_WriteStderr("%lc", ch); initconfig.c:2682:38: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘wchar_t’ {aka ‘long int’} 2682 | PySys_WriteStderr("\\x%02x", ch); initconfig.c:2686:38: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘wchar_t’ {aka ‘long int’} 2686 | PySys_WriteStderr("\\U%08x", ch); initconfig.c:2690:38: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘wchar_t’ {aka ‘long int’} 2690 | PySys_WriteStderr("\\u%04x", ch);
* bpo-41525: Make the Python program help ASCII-only (GH-21836)Serhiy Storchaka2020-09-091-1/+1
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* bpo-1635741: Port mashal module to multi-phase init (#22149)Victor Stinner2020-09-081-16/+18
| | | | Port the 'mashal' extension module to the multi-phase initialization API (PEP 489).
* bpo-41681: Fix for `f-string/str.format` error description when using 2 `,` ↵han-solo2020-09-011-2/+4
| | | | | | | in format specifier (GH-22036) * Fixed `f-string/str.format` error description when using two `,` in format specifier. Co-authored-by: millefalcon <hanish0019@hmail.com>
* closes bpo-41533: Fix a potential memory leak when allocating a stack (GH-21847)Tony Solomonik2020-08-301-0/+3
| | | | Free the stack allocated in va_build_stack if do_mkstack fails and the stack is not a small_stack
* bpo-41524: fix pointer bug in PyOS_mystr{n}icmp (GH-21845)wmeehan2020-08-271-7/+11
| | | | | | | | | | | | | | * bpo-41524: fix pointer bug in PyOS_mystr{n}icmp The existing implementations of PyOS_mystrnicmp and PyOS_mystricmp can increment pointers beyond the end of a string. This commit fixes those cases by moving the mutation out of the condition. * 📜🤖 Added by blurb_it. * Address comments Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* bpo-1635741: Explict GC collect after PyInterpreterState_Clear() (GH-21902)Hai Shi2020-08-171-4/+2
| | | | Fix a reference cycle by triggering an explicit GC collection after calling PyInterpreterState_Clear().
* bpo-41531: Fix compilation of dict literals with more than 0xFFFF elements ↵Pablo Galindo2020-08-131-1/+1
| | | | (GH-21850)
* bpo-1635741: Clean sysdict and builtins of interpreter at exit (GH-21605)Hai Shi2020-08-121-2/+8
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* bpo-41463: Generate information about jumps from 'opcode.py' rather than ↵Mark Shannon2020-08-041-59/+73
| | | | | duplicating it in 'compile.c' (GH-21714) Generate information about jumps from 'opcode.py' rather than duplicate it in 'compile.c'
* bpo-41323: Perform 'peephole' optimizations directly on the CFG. (GH-21517)Mark Shannon2020-07-305-4562/+4349
| | | * Move 'peephole' optimizations into compile.c and perform them directly on the CFG.
* bpo-41340: Removed fallback implementation for strdup (GH-21634)wasiher2020-07-271-12/+0
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* bpo-40941: Unify implicit and explicit state in the frame and generator ↵Mark Shannon2020-07-171-16/+27
| | | | | | | objects into a single value. (GH-20803) * Merge gen and frame state variables into one. * Replace stack pointer with depth in PyFrameObject. Makes code easier to read and saves a word of memory.
* Fix -Wstrict-prototypes warning in thread_pthread.h. (GH-21477)Benjamin Peterson2020-07-151-1/+1
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* bpo-36346: Make using the legacy Unicode C API optional (GH-21437)Serhiy Storchaka2020-07-102-6/+27
| | | | Add compile time option USE_UNICODE_WCHAR_CACHE. Setting it to 0 makes the interpreter not using the wchar_t cache and the legacy Unicode C API.
* bpo-29778: test_embed tests the path configuration (GH-21306)Victor Stinner2020-07-072-3/+85
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* bpo-41218: Only mark async code with CO_COROUTINE. (#21357)Matthias Bussonnier2020-07-061-4/+6
| | | | | 3.8.3 had a regression where compiling with ast.PyCF_ALLOW_TOP_LEVEL_AWAIT woudl agressively mark things are coroutine even if there were not.
* bpo-29778: Ensure python3.dll is loaded from correct locations when Python ↵Steve Dower2020-07-062-48/+0
| | | | | | is embedded (GH-21297) Also enables using debug build of `python3_d.dll` Reference: CVE-2020-15523
* bpo-41204: Fix compiler warning in ast_type_init() (GH-21307)Victor Stinner2020-07-041-4/+5
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* bpo-41162: Clear audit hooks later during finalization (GH-21222)Konge2020-07-031-3/+7
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* bpo-41180: Audit code.__new__ when unmarshalling (GH-21271)tkmikan2020-07-031-0/+6
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* bpo-41194: Convert _ast extension to PEP 489 (GH-21293)Victor Stinner2020-07-031-149/+174
| | | | Convert the _ast extension module to PEP 489 "Multiphase initialization". Replace the global _ast state with a module state.
* bpo-41194: The _ast module cannot be loaded more than once (GH-21290)Victor Stinner2020-07-031-38/+32
| | | | | | | | Fix a crash in the _ast module: it can no longer be loaded more than once. It now uses a global state rather than a module state. * Move _ast module state: use a global state instead. * Set _astmodule.m_size to -1, so the extension cannot be loaded more than once.
* bpo-41194: Pass module state in Python-ast.c (GH-21284)Victor Stinner2020-07-031-1990/+1890
| | | | | | Rework asdl_c.py to pass the module state to functions in Python-ast.c, instead of using astmodulestate_global. Handle also PyState_AddModule() failure in init_types().
* bpo-1635741: Release Unicode interned strings at exit (GH-21269)Victor Stinner2020-07-011-0/+1
| | | | | | | * PyUnicode_InternInPlace() now ensures that interned strings are ready. * Add _PyUnicode_ClearInterned(). * Py_Finalize() now releases Unicode interned strings: call _PyUnicode_ClearInterned().
* bpo-40521: Cleanup finalize_interp_types() (GH-21265)Victor Stinner2020-07-011-2/+2
| | | | Remove the now unused is_main_interp parameter of finalize_interp_types().
* bpo-23427: Add sys.orig_argv attribute (GH-20729)Victor Stinner2020-06-292-8/+9
| | | | | | | Add sys.orig_argv attribute: the list of the original command line arguments passed to the Python executable. Rename also PyConfig._orig_argv to PyConfig.orig_argv and document it.
* bpo-39151: Simplify DFS in the assembler (GH-17733)Pablo Galindo2020-06-281-33/+18
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* bpo-41076: Pre-feed the parser with the f-string expression location (GH-21054)Lysandros Nikolaou2020-06-272-2400/+2400
| | | This commit changes the parsing of f-string expressions with the new parser. The parser gets pre-fed with the location of the expression itself (not the f-string, which was what we were doing before). This allows us to completely skip the shifting of the AST nodes after the parsing is completed.
* bpo-40521: Optimize PyBytes_FromStringAndSize(str, 0) (GH-21142)Victor Stinner2020-06-251-0/+5
| | | | | | | | | | | | | | | | Always create the empty bytes string singleton. Optimize PyBytes_FromStringAndSize(str, 0): it no longer has to check if the empty string singleton was created or not, it is always available. Add functions: * _PyBytes_Init() * bytes_get_empty(), bytes_new_empty() * bytes_create_empty_string_singleton() * unicode_create_empty_string_singleton() _Py_unicode_state: rename empty structure member to empty_string.
* bpo-40521: Always create the empty tuple singleton (GH-21116)Victor Stinner2020-06-241-1/+8
| | | | | | | | | | | Py_InitializeFromConfig() now always creates the empty tuple singleton as soon as possible. Optimize PyTuple_New(0): it no longer has to check if the empty tuple was created or not, it is always creatd. * Add tuple_create_empty_tuple_singleton() function. * Add tuple_get_empty() function. * Remove state parameter of tuple_alloc().
* bpo-41094: Fix decoding errors with audit when open files. (GH-21095)Serhiy Storchaka2020-06-241-4/+19
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* bpo-40521: Fix _PyContext_Fini() (GH-21103)Victor Stinner2020-06-241-1/+3
| | | Only clear _token_missing in the main interpreter.
* bpo-40521: Make empty Unicode string per interpreter (GH-21096)Victor Stinner2020-06-231-5/+3
| | | Each interpreter now has its own empty Unicode string singleton.
* bpo-40521: Make MemoryError free list per interpreter (GH-21086)Victor Stinner2020-06-231-5/+2
| | | | | | | Each interpreter now has its own MemoryError free list: it is not longer shared by all interpreters. Add _Py_exc_state structure and PyInterpreterState.exc_state member. Move also errnomap into _Py_exc_state.
* bpo-40521: Empty frozenset is no longer a singleton (GH-21085)Raymond Hettinger2020-06-231-1/+0
| | | | | | | | | * Revert "bpo-40521: Make the empty frozenset per interpreter (GH-21068)" This reverts commit 261cfedf7657a515e04428bba58eba2a9bb88208. * bpo-40521: Empty frozensets are no longer singletons * Complete the removal of the frozenset singleton
* bpo-40521: Cleanup code of free lists (GH-21082)Victor Stinner2020-06-231-4/+10
| | | Add get_xxx_state() function to factorize duplicated code.
* Call _PyWarnings_InitState() in subinterpreters (GH-21078)Victor Stinner2020-06-231-11/+9
| | | | Py_InitializeFromConfig() now calls also _PyWarnings_InitState() in subinterpreters.
* bpo-40521: Make bytes singletons per interpreter (GH-21074)Victor Stinner2020-06-231-3/+1
| | | | | | Each interpreter now has its own empty bytes string and single byte character singletons. Replace STRINGLIB_EMPTY macro with STRINGLIB_GET_EMPTY() macro.
* bpo-40521: Make the empty frozenset per interpreter (GH-21068)Victor Stinner2020-06-231-3/+1
| | | Each interpreter now has its own empty frozenset singleton.
* bpo-40521: Make dict free lists per-interpreter (GH-20645)Victor Stinner2020-06-231-3/+1
| | | | | | | | | | | Each interpreter now has its own dict free list: * Move dict free lists into PyInterpreterState. * Move PyDict_MAXFREELIST define to pycore_interp.h * Add _Py_dict_state structure. * Add tstate parameter to _PyDict_ClearFreeList() and _PyDict_Fini(). * In debug mode, ensure that the dict free lists are not used after _PyDict_Fini() is called. * Remove "#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS".
* bpo-41078: Fix bltinmodule.c with Py_TRACE_REFS (GH-21058)Victor Stinner2020-06-221-0/+1
| | | | Add pycore_object.h include to fix bltinmodule.c when Py_TRACE_REFS macro is defined.
* bpo-41078: Rename pycore_tupleobject.h to pycore_tuple.h (GH-21056)Victor Stinner2020-06-224-22/+21
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* bpo-41061: Fix incorrect expressions in hashtable (GH-21028)Christian Heimes2020-06-221-2/+2
| | | Signed-off-by: Christian Heimes <christian@python.org>
* bpo-41056: Fix reference to deallocated stack in pathconfig (Coverity) ↵Gregory P. Smith2020-06-221-1/+1
| | | | | | | (GH-21013) Reported by Coverity. (CID 1457554 RETURN_LOCAL) path0 is assigned as a pointer to this right before it goes out of scope.
* bpo-40939: Rename PyPegen* functions to PyParser* (GH-21016)Lysandros Nikolaou2020-06-211-8/+8
| | | | | | Rename PyPegen* functions to PyParser*, so that we can remove the old set of PyParser* functions that were using the old parser.
* bpo-40939: Remove the old parser (Part 2) (GH-21005)Lysandros Nikolaou2020-06-205-2695/+0
| | | Remove some remaining files and Makefile targets for the old parser
* bpo-40636: PEP 618: add strict parameter to zip() (GH-20921)Guido van Rossum2020-06-191-8/+85
| | | | | | | | zip() now supports PEP 618's strict parameter, which raises a ValueError if the arguments are exhausted at different lengths. Patch by Brandt Bucher. Co-authored-by: Brandt Bucher <brandtbucher@gmail.com> Co-authored-by: Ram Rachum <ram@rachum.com>
* bpo-40943: PY_SSIZE_T_CLEAN required for '#' formats (GH-20784)Victor Stinner2020-06-192-77/+45
| | | | | | | The PY_SSIZE_T_CLEAN macro must now be defined to use PyArg_ParseTuple() and Py_BuildValue() "#" formats: "es#", "et#", "s#", "u#", "y#", "z#", "U#" and "Z#". See the PEP 353. Update _testcapi.test_buildvalue_issue38913().
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