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* gh-103763: Implement PEP 695 (#103764)Jelle Zijlstra2023-05-161-0/+786
| | | | | | | | | | | | | | This implements PEP 695, Type Parameter Syntax. It adds support for: - Generic functions (def func[T](): ...) - Generic classes (class X[T](): ...) - Type aliases (type X = ...) - New scoping when the new syntax is used within a class body - Compiler and interpreter changes to support the new syntax and scoping rules Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com> Co-authored-by: Eric Traut <eric@traut.com> Co-authored-by: Larry Hastings <larry@hastings.org> Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
* gh-102500: Implement PEP 688 (#102521)Jelle Zijlstra2023-05-041-1/+61
| | | Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
* gh-101825: Clarify that as_integer_ratio() output is always normalized (#101843)Sergey B Kirpichev2023-02-272-10/+7
| | | | | | | | | Make docstrings for `as_integer_ratio` consistent across types, and document that the returned pair is always normalized (coprime integers, with positive denominator). --------- Co-authored-by: Owain Davies <116417456+OTheDev@users.noreply.github.com> Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* gh-101409: Improve generated clinic code for self type checks (#101411)Erlend E. Aasland2023-01-316-20/+21
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* gh-100268: Add is_integer method to int (#100439)Shantanu2022-12-241-1/+19
| | | This improves the lives of type annotation users of `float` - which type checkers implicitly treat as `int|float` because that is what most code actually wants. Before this change a `.is_integer()` method could not be assumed to exist on things annotated as `: float` due to the method not existing on both types.
* bpo-15999: Accept arbitrary values for boolean parameters. (#15609)Serhiy Storchaka2022-12-034-12/+12
| | | builtins and extension module functions and methods that expect boolean values for parameters now accept any Python object rather than just a bool or int type. This is more consistent with how native Python code itself behaves.
* gh-96526: Clarify format and __format__ docstrings (gh-96648)Michael2022-10-032-4/+7
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* gh-90928: Improve static initialization of keywords tuple in AC (#95907)Erlend E. Aasland2022-08-1314-728/+308
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* gh-90928: Statically Initialize the Keywords Tuple in Clinic-Generated Code ↵Eric Snow2022-08-1119-61/+1561
| | | | | | | | | | | | | | | | (gh-95860) We only statically initialize for core code and builtin modules. Extension modules still create the tuple at runtime. We'll solve that part of interpreter isolation separately. This change includes generated code. The non-generated changes are in: * Tools/clinic/clinic.py * Python/getargs.c * Include/cpython/modsupport.h * Makefile.pre.in (re-generate global strings after running clinic) * very minor tweaks to Modules/_codecsmodule.c and Python/Python-tokenize.c All other changes are generated code (clinic, global strings).
* gh-91320: Argument Clinic uses _PyCFunction_CAST() (#32210)Victor Stinner2022-05-0311-72/+72
| | | | Replace "(PyCFunction)(void(*)(void))func" cast with _PyCFunction_CAST(func).
* GH-88116: Use a compact format to represent end line and column offsets. ↵Mark Shannon2022-04-211-45/+25
| | | | | | | | | | | | (GH-91666) * Stores all location info in linetable to conform to PEP 626. * Remove column table from code objects. * Remove end-line table from code objects. * Document new location table format
* gh-91098: Use Argument Clinic for Object/classobject.c to fix docstrings ↵Oleg Iarygin2022-04-191-0/+83
| | | | | | | (#31711) Closes GH-91098. Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
* gh-91102: Use Argument Clinic for EncodingMap (#31725)Oleg Iarygin2022-04-181-1/+19
| | | Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
* Fix bad grammar and import docstring for split/rsplit (GH-32381)Raymond Hettinger2022-04-081-13/+21
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* bpo-26579: Add object.__getstate__(). (GH-2821)Serhiy Storchaka2022-04-061-1/+19
| | | | | | | Copying and pickling instances of subclasses of builtin types bytearray, set, frozenset, collections.OrderedDict, collections.deque, weakref.WeakSet, and datetime.tzinfo now copies and pickles instance attributes implemented as slots.
* bpo-46841: Quicken code in-place (GH-31888)Brandt Bucher2022-03-211-5/+5
| | | | | | | | | | | | | | | | | | | * Moves the bytecode to the end of the corresponding PyCodeObject, and quickens it in-place. * Removes the almost-always-unused co_varnames, co_freevars, and co_cellvars member caches * _PyOpcode_Deopt is a new mapping from all opcodes to their un-quickened forms. * _PyOpcode_InlineCacheEntries is renamed to _PyOpcode_Caches * _Py_IncrementCountAndMaybeQuicken is renamed to _PyCode_Warmup * _Py_Quicken is renamed to _PyCode_Quicken * _co_quickened is renamed to _co_code_adaptive (and is now a read-only memoryview). * Do not emit unused nonzero opargs anymore in the compiler.
* bpo-46852: Remove the float.__set_format__() method (GH-31585)Victor Stinner2022-02-251-68/+1
| | | | | | Remove the undocumented private float.__set_format__() method, previously known as float.__set_format__() in Python 3.7. Its docstring said: "You probably don't want to use this function. It exists mainly to be used in Python's test suite."
* bpo-46852: Rename float.__set_format__() to float.__setformat__() (GH-31558)Victor Stinner2022-02-251-12/+12
| | | | | | | | | | | Rename the private undocumented float.__set_format__() method to float.__setformat__() to fix a typo introduced in Python 3.7. The method is only used by test_float. The change enables again test_float tests on the float format which were previously skipped because of the typo. The typo was introduced in Python 3.7 by bpo-20185 in commit b5c51d3dd95bbfde533655fb86ac0f96f771ba7b.
* bpo-45155 : Default arguments for int.to_bytes(length=1, ↵Barry Warsaw2021-09-161-35/+59
| | | | | | | byteorder=sys.byteorder) (#28265) Add default arguments for int.to_bytes() and int.from_bytes() Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
* bpo-43413: Fix handling keyword arguments in subclasses of some buitin ↵Serhiy Storchaka2021-09-125-10/+15
| | | | | | | | 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-24234: Implement bytes.__bytes__ (GH-27901)Dong-hee Na2021-08-231-1/+19
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* bpo-24234: implement complex.__complex__ (GH-27887)Mark Dickinson2021-08-231-1/+19
| | | Co-authored-by: Dong-hee Na <donghee.na92@gmail.com>
* bpo-43950: Add option to opt-out of PEP-657 (GH-27023)Ammar Askar2021-07-071-25/+7
| | | | | Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com> Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
* bpo-44530: Add co_qualname field to PyCodeObject (GH-26941)Gabriele N. Tornetta2021-07-071-39/+64
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* bpo-43950: Add code.co_positions (PEP 657) (GH-26955)Pablo Galindo2021-07-021-22/+60
| | | | | | | | | | | | | | | This PR is part of PEP 657 and augments the compiler to emit ending line numbers as well as starting and ending columns from the AST into compiled code objects. This allows bytecodes to be correlated to the exact source code ranges that generated them. This information is made available through the following public APIs: * The `co_positions` method on code objects. * The C API function `PyCode_Addr2Location`. Co-authored-by: Batuhan Taskaya <isidentical@gmail.com> Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
* bpo-43693: Un-revert commits 2c1e258 and b2bf2bc. (gh-26577)Eric Snow2021-06-071-1/+38
| | | | | | | | | | These were reverted in gh-26530 (commit 17c4edc) due to refleaks. * 2c1e258 - Compute deref offsets in compiler (gh-25152) * b2bf2bc - Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388) This change fixes the refleaks. https://bugs.python.org/issue43693
* bpo-43693: Revert commits 2c1e2583fdc4db6b43d163239ea42b0e8394171f and ↵Pablo Galindo2021-06-041-38/+1
| | | | | | | | | | | | | b2bf2bc1ece673d387341e06c8d3c2bc6e259747 (GH-26530) * Revert "bpo-43693: Compute deref offsets in compiler (gh-25152)" This reverts commit b2bf2bc1ece673d387341e06c8d3c2bc6e259747. * Revert "bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)" This reverts commit 2c1e2583fdc4db6b43d163239ea42b0e8394171f. These two commits are breaking the refleak buildbots.
* bpo-43693: Compute deref offsets in compiler (gh-25152)Mark Shannon2021-06-041-16/+6
| | | | | | Merges locals and cells into a single array. Saves a pointer in the interpreter and means that we don't need the LOAD_CLOSURE opcode any more https://bugs.python.org/issue43693
* bpo-43693: Add new internal code objects fields: co_fastlocalnames and ↵Eric Snow2021-06-031-1/+48
| | | | | | | | | | | | | | | | | co_fastlocalkinds. (gh-26388) A number of places in the code base (notably ceval.c and frameobject.c) rely on mapping variable names to indices in the frame "locals plus" array (AKA fast locals), and thus opargs. Currently the compiler indirectly encodes that information on the code object as the tuples co_varnames, co_cellvars, and co_freevars. At runtime the dependent code must calculate the proper mapping from those, which isn't ideal and impacts performance-sensitive sections. This is something we can easily address in the compiler instead. This change addresses the situation by replacing internal use of co_varnames, etc. with a single combined tuple of names in locals-plus order, along with a minimal array mapping each to its kind (local vs. cell vs. free). These two new PyCodeObject fields, co_fastlocalnames and co_fastllocalkinds, are not exposed to Python code for now, but co_varnames, etc. are still available with the same values as before (though computed lazily). Aside from the (mild) performance impact, there are a number of other benefits: * there's now a clear, direct relationship between locals-plus and variables * code that relies on the locals-plus-to-name mapping is simpler * marshaled code objects are smaller and serialize/de-serialize faster Also note that we can take this approach further by expanding the possible values in co_fastlocalkinds to include specific argument types (e.g. positional-only, kwargs). Doing so would allow further speed-ups in _PyEval_MakeFrameVector(), which is where args get unpacked into the locals-plus array. It would also allow us to shrink marshaled code objects even further. https://bugs.python.org/issue43693
* bpo-40222: "Zero cost" exception handling (GH-25729)Mark Shannon2021-05-071-21/+40
| | | | | | | | "Zero cost" exception handling. * Uses a lookup table to determine how to handle exceptions. * Removes SETUP_FINALLY and POP_TOP block instructions, eliminating (most of) the runtime overhead of try statements. * Reduces the size of the frame object by about 60%.
* bpo-42431: Fix outdated bytes comments (GH-23458)Serhiy Storchaka2020-12-032-4/+4
| | | | Also move definitions of internal macros F_LJUST etc to private header.
* bpo-42246: Partial implementation of PEP 626. (GH-23113)Mark Shannon2020-11-121-13/+13
| | | * Implement new line number table format, as defined in PEP 626.
* bpo-42161: Use _PyLong_GetZero() and _PyLong_GetOne() (GH-22995)Victor Stinner2020-10-272-4/+4
| | | | Use _PyLong_GetZero() and _PyLong_GetOne() in Objects/ and Python/ directories.
* Revert "bpo-26680: Incorporate is_integer in all built-in and standard ↵Raymond Hettinger2020-10-071-19/+1
| | | | | library numeric types (GH-6121)" (GH-22584) This reverts commit 58a7da9e125422323f79c4ee95ac5549989d8162.
* bpo-26680: Incorporate is_integer in all built-in and standard library ↵Robert Smallshire2020-10-011-1/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | numeric types (GH-6121) * bpo-26680: Adds support for int.is_integer() for compatibility with float.is_integer(). The int.is_integer() method always returns True. * bpo-26680: Adds a test to ensure that False.is_integer() and True.is_integer() are always True. * bpo-26680: Adds Real.is_integer() with a trivial implementation using conversion to int. This default implementation is intended to reduce the workload for subclass implementers. It is not robust in the presence of infinities or NaNs and may have suboptimal performance for other types. * bpo-26680: Adds Rational.is_integer which returns True if the denominator is one. This implementation assumes the Rational is represented in it's lowest form, as required by the class docstring. * bpo-26680: Adds Integral.is_integer which always returns True. * bpo-26680: Adds tests for Fraction.is_integer called as an instance method. The tests for the Rational abstract base class use an unbound method to sidestep the inability to directly instantiate Rational. These tests check that everything works correct as an instance method. * bpo-26680: Updates documentation for Real.is_integer and built-ins int and float. The call x.is_integer() is now listed in the table of operations which apply to all numeric types except complex, with a reference to the full documentation for Real.is_integer(). Mention of is_integer() has been removed from the section 'Additional Methods on Float'. The documentation for Real.is_integer() describes its purpose, and mentions that it should be overridden for performance reasons, or to handle special values like NaN. * bpo-26680: Adds Decimal.is_integer to the Python and C implementations. The C implementation of Decimal already implements and uses mpd_isinteger internally, we just expose the existing function to Python. The Python implementation uses internal conversion to integer using to_integral_value(). In both cases, the corresponding context methods are also implemented. Tests and documentation are included. * bpo-26680: Updates the ACKS file. * bpo-26680: NEWS entries for int, the numeric ABCs and Decimal. Co-authored-by: Robert Smallshire <rob@sixty-north.com>
* bpo-41342: Convert int.__round__ to Argument Clinic (GH-21549)Serhiy Storchaka2020-07-201-1/+35
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* bpo-41334: Convert constructors of str, bytes and bytearray to Argument ↵Serhiy Storchaka2020-07-203-3/+210
| | | | Clinic (GH-21535)
* bpo-41343: Convert methods of complex to Argument Clinic (GH-21550)Dong-hee Na2020-07-201-1/+68
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* bpo-41333: Convert OrderedDict.pop() to Argument Clinic (GH-21534)Serhiy Storchaka2020-07-192-3/+47
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* bpo-41262: Convert memoryview to Argument Clinic. (GH-21421)Serhiy Storchaka2020-07-181-1/+193
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* bpo-41263: Convert code.__new__ to Argument Clinic (GH-21426)Serhiy Storchaka2020-07-101-1/+137
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* bpo-29882: Add an efficient popcount method for integers (#771)Niklas Fiekas2020-05-291-1/+26
| | | | | | | | | | | | | | | | | | | | | | | * bpo-29882: Add an efficient popcount method for integers * Update 'sign bit' and versionadded in docs * Add entry to whatsnew document * Doc: use positive example, mention population count * Minor cleanups of the core code * Move popcount_digit closer to where it's used * Use z instead of self after conversion * Add 'absolute value' and 'population count' to docstring * Fix clinic error about missing summary line * Ensure popcount_digit is portable with 64-bit ints Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
* bpo-40792: Make the result of PyNumber_Index() always having exact type int. ↵Serhiy Storchaka2020-05-285-23/+23
| | | | | | | | | | | | (GH-20443) Previously, the result could have been an instance of a subclass of int. Also revert bpo-26202 and make attributes start, stop and step of the range object having exact type int. Add private function _PyNumber_Index() which preserves the old behavior of PyNumber_Index() for performance to use it in the conversion functions like PyLong_AsLong().
* bpo-37999: No longer use __int__ in implicit integer conversions. (GH-15636)Serhiy Storchaka2020-05-268-183/+8
| | | | Only __index__ should be used to make integer conversions lossless.
* bpo-39939: Add str.removeprefix and str.removesuffix (GH-18939)sweeneyde2020-04-223-3/+233
| | | | | Added str.removeprefix and str.removesuffix methods and corresponding bytes, bytearray, and collections.UserString methods to remove affixes from a string if present. See PEP 616 for a full description.
* bpo-39573: Update clinic to use Py_IS_TYPE() function (GH-18507)Dong-hee Na2020-02-141-2/+2
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* Document CodeType.replace (GH-17776)Anthony Sottile2020-01-011-2/+2
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* bpo-38629: implement __floor__ and __ceil__ for float type (GH-16985)Batuhan Taşkaya2019-12-151-1/+37
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* bpo-38409: Fix grammar in str.strip() docstring (GH-16682)Zachary Ware2019-10-091-2/+2
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* bpo-37206: Unrepresentable default values no longer represented as None. ↵Serhiy Storchaka2019-09-146-15/+15
| | | | | | | (GH-13933) 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.
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