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* bpo-45019: Do some cleanup related to frozen modules. (gh-28319)Eric Snow2021-09-135-2/+80
| | | | | There are a few things I missed in gh-27980. This is a follow-up that will make subsequent PRs cleaner. It includes fixes to tests and tools that reference the frozen modules. https://bugs.python.org/issue45019
* bpo-43413: Fix handling keyword arguments in subclasses of some buitin ↵Serhiy Storchaka2021-09-121-2/+4
| | | | | | | | classes (GH-26456) * Constructors of subclasses of some buitin classes (e.g. tuple, list, frozenset) no longer accept arbitrary keyword arguments. * Subclass of set can now define a __new__() method with additional keyword parameters without overriding also __init__().
* bpo-44219: Release the GIL during isatty syscalls (GH-28250)Vincent Michel2021-09-091-2/+14
| | | | | | Release the GIL while performing isatty() system calls on arbitrary file descriptors. In particular, this affects os.isatty(), os.device_encoding() and io.TextIOWrapper. By extension, io.open() in text mode is also affected.
* bpo-44959: Add fallback to extension modules with '.sl' suffix on HP-UX ↵Florin Spătar2021-09-081-1/+1
| | | | (GH-27857)
* bpo-45123: PyAiter_Check and PyObject_GetAiter fix & rename. (GH-28194)Yury Selivanov2021-09-071-1/+1
| | | | | | | | Fix PyAiter_Check to only check for the `__anext__` presense (not for `__aiter__`). Rename `PyAiter_Check()` to `PyAIter_Check()`, `PyObject_GetAiter()` -> `PyObject_GetAIter()`. Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* bpo-41031: Match C and Python code formatting of unprintable exceptions and ↵Irit Katriel2021-09-052-2/+6
| | | | exceptions in the __main__ module. (GH-28139)
* bpo-45094: Add Py_NO_INLINE macro (GH-28140)Victor Stinner2021-09-031-1/+1
| | | | | * Rename _Py_NO_INLINE macro to Py_NO_INLINE: make it public and document it. * Sort macros in the C API documentation.
* bpo-34602: Quadruple stack size on macOS when compiling with UBSAN (GH-27309)Łukasz Langa2021-09-031-7/+6
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* bpo-45083: Include the exception class qualname when formatting an exception ↵Irit Katriel2021-09-032-35/+35
| | | | | (GH-28119) Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>
* bpo-45056: Remove trailing unused constants from co_consts (GH-28109)Inada Naoki2021-09-024-6318/+6348
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* bpo-45085: Remove the binhex module (GH-28117)Victor Stinner2021-09-021-1/+0
| | | | | | | | | | The binhex module, deprecated in Python 3.9, is now removed. The following binascii functions, deprecated in Python 3.9, are now also removed: * a2b_hqx(), b2a_hqx(); * rlecode_hqx(), rledecode_hqx(). The binascii.crc_hqx() function remains available.
* bpo-45039: Consistently use ADDOP_LOAD_CONST in compiler rather than ↵Irit Katriel2021-08-311-2/+4
| | | | ADDOP_O(c, LOAD_CONST,...) (GH-28015)
* bpo-37596: Clean up the set/frozenset marshalling code (GH-28068)Brandt Bucher2021-08-311-8/+11
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* bpo-45061: Enhance faulthandler traceback wit no Python frame (GH-28090)Victor Stinner2021-08-311-1/+1
| | | | | | | | Fix indentation of <no Python frame> message in a faulthandler traceback or a Fatal Python error traceback. Example: Current thread 0x00007f03896fb740 (most recent call first): Garbage-collecting <no Python frame>
* bpo-45019: Add a tool to generate list of modules to include for frozen ↵Eric Snow2021-08-305-29/+57
| | | | | | | modules (gh-27980) Frozen modules must be added to several files in order to work properly. Before this change this had to be done manually. Here we add a tool to generate the relevant lines in those files instead. This helps us avoid mistakes and omissions. https://bugs.python.org/issue45019
* bpo-45045: Optimize mapping patterns of structural pattern matching (GH-28043)Dong-hee Na2021-08-301-6/+17
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* Refine specialization stats (GH-27992)Mark Shannon2021-08-271-17/+89
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* bpo-44945: Specialize BINARY_ADD (GH-27967)Mark Shannon2021-08-273-46/+195
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* bpo-45000: Raise SyntaxError when try to delete __debug__ (GH-27947)Dong-hee Na2021-08-251-0/+4
| | | Automerge-Triggered-By: GH:pablogsal
* bpo-44990: Change layout of evaluation frames. "Layout B" (GH-27933)Mark Shannon2021-08-253-66/+62
| | | Places the locals between the specials and stack. This is the more "natural" layout for a C struct, makes the code simpler and gives a slight speedup (~1%)
* Format the Python-tokenize module and fix exit path (GH-27935)Pablo Galindo Salgado2021-08-251-47/+46
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* bpo-37596: Make `set` and `frozenset` marshalling deterministic (GH-27926)Brandt Bucher2021-08-251-0/+32
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* Add tests for the C tokenizer and expose it as a private module (GH-27924)Pablo Galindo Salgado2021-08-243-0/+237
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* bpo-44895: Introduce PYTHONDUMPREFSFILE variable for refcount dumping (GH-27767)Dong-hee Na2021-08-172-0/+29
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* bpo-44889: Specialize LOAD_METHOD with PEP 659 adaptive interpreter (GH-27722)Ken Jin2021-08-173-37/+319
| | | | | | | | Adds four new instructions: * LOAD_METHOD_ADAPTIVE * LOAD_METHOD_CACHED * LOAD_METHOD_MODULE * LOAD_METHOD_CLASS
* bpo-44900: Add five superinstructions. (GH-27741)Mark Shannon2021-08-163-19/+115
| | | | | | | | * LOAD_FAST LOAD_FAST * STORE_FAST LOAD_FAST * LOAD_FAST LOAD_CONST * LOAD_CONST LOAD_FAST * STORE_FAST STORE_FAST
* bpo-43392: Optimize repeated calls to `__import__()` (GH-24735)Germán Méndez Bravo2021-08-121-512/+519
| | | | | | | | | | | | | | | | | | | | | Implements a two steps check in `importlib._bootstrap._find_and_load()` to avoid locking when the module has been already imported and it's ready. --- Using `importlib.__import__()`, after this, does show a big difference: Before: ``` $ ./python -c 'import timeit; print(timeit.timeit("__import__(\"timeit\")", setup="from importlib import __import__"))' 15.92248619502061 ``` After: ``` $ ./python -c 'import timeit; print(timeit.timeit("__import__(\"timeit\")", setup="from importlib import __import__"))' 1.206068897008663 ``` ---
* bpo-44885: Correct the ast locations of f-strings with format specs and ↵Pablo Galindo Salgado2021-08-123-42/+42
| | | | repeated expressions (GH-27729)
* bpo-44890: collect specialization stats if Py_DEBUG (GH-27731)Irit Katriel2021-08-122-7/+7
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* bpo-44878: Remove loop from interpreter. All dispatching is done by gotos. ↵Mark Shannon2021-08-121-14/+17
| | | | (GH-27727)
* Update test__opcode and _Py_GetSpecializationStats with recent ↵Irit Katriel2021-08-111-0/+1
| | | | specialization stat changes (GH-27728)
* bpo-44878: Remove the switch from the main interpreter loop when using ↵Mark Shannon2021-08-111-177/+206
| | | | | | | | computed gotos. (GH-27726) * Refactor dispatch logic to make flow of control clearer. Moves lltrace and dxprofile instrumentation into DISPATCH macro. * Remove switch in interpreter loop when using computed gotos. There is no need for two nearly-duplicate dispatch tables.
* bpo-44878: _PyEval_EvalFrameDefault readability improvements (GH-27725)Mark Shannon2021-08-111-51/+49
| | | | | * Move a few variable declarations to point of definition. * Factor out tracing of function entry into helper function.
* Add missing DISPATCH() (GH-27715)Mark Shannon2021-08-111-0/+2
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* Classify specialization failures. Provides more useful stats, with lower ↵Mark Shannon2021-08-101-96/+83
| | | | overhead. (GH-27701)
* Fix stats for STORE_ATTR specialization. (GH-27708)Mark Shannon2021-08-101-0/+2
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* bpo-25782: avoid hang in PyErr_SetObject when current exception has a cycle ↵Irit Katriel2021-08-101-1/+15
| | | | | in its context chain (GH-27626) Co-authored-by: Dennis Sweeney 36520290+sweeneyde@users.noreply.github.com
* bpo-44854: Remove trailing whitespaces (GH-27689)Serhiy Storchaka2021-08-091-2/+2
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* Remove unused variable. (GH-27677)Mark Shannon2021-08-091-3/+0
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* bpo-44826: Specialize STORE_ATTR (GH-27590)Mark Shannon2021-08-093-78/+311
| | | | | | | * Generalize cache names for LOAD_ATTR to allow store and delete specializations. * Factor out specialization of attribute dictionary access. * Specialize STORE_ATTR.
* bpo-44840: Compiler: Move duplication of exit blocks with no line numbers to ↵Mark Shannon2021-08-094-6645/+6638
| | | | after CFG optimization. (GH-27656)
* bpo-44856: Possible reference leak in error paths of update_bases() and ↵Pablo Galindo Salgado2021-08-071-22/+13
| | | | __build_class__ (GH-27647)
* bpo-44849: Fix os.set_inheritable() on FreeBSD 14 with O_PATH (GH-27623)Victor Stinner2021-08-061-3/+4
| | | | | Fix the os.set_inheritable() function on FreeBSD 14 for file descriptor opened with the O_PATH flag: ignore the EBADF error on ioctl(), fallback on the fcntl() implementation.
* bpo-44584: Deprecate PYTHONTHREADDEBUG env var (GH-27065)Victor Stinner2021-08-062-0/+24
| | | | | The threading debug (PYTHONTHREADDEBUG environment variable) is deprecated in Python 3.10 and will be removed in Python 3.12. This feature requires a debug build of Python.
* Add option to write specialization stats to files and script to summarize. ↵Mark Shannon2021-08-042-12/+33
| | | | | | | (GH-27575) * Add option to write stats to random file in a directory. * Add script to summarize stats.
* closes bpo-39091: Fix segfault when Exception constructor returns ↵Noah2021-08-031-4/+16
| | | | | non-exception for gen.throw. (#17658) Co-authored-by: Benjamin Peterson <benjamin@python.org>
* Minor fixes to specialization stats. (GH-27457)Mark Shannon2021-07-292-5/+11
| | | | | * Use class, not value for fail stats for BINARY_SUBSCR. * Fix counts for unquickened instructions.
* bpo-44725 : expose specialization stats in python (GH-27192)Irit Katriel2021-07-291-0/+78
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* bpo-43897: Reject "_" captures and top-level MatchStar in the AST validator ↵Brandt Bucher2021-07-291-20/+28
| | | | (GH-27432)
* bpo-43897: AST validation for pattern matching nodes (GH24771)Batuhan Taskaya2021-07-281-31/+123
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