delta/cpython-git.git/Modules/_operator.c, branch enum-lost-fixes

bpo-44558: Match countOf `is`/`==` treatment to c (GH-27007)

2021-07-07T13:50:41+00:00

(cherry picked from commit 6bd3ecfc272b122b55a6adec50dd7a7c868f262f)

Co-authored-by: Rupert Tombs

bpo-43908: Make heap types converted during 3.10 alpha immutable (GH-26351) (GH-26766)

2021-06-17T10:19:44+00:00

* Make functools types immutable

* Multibyte codec types are now immutable

* pyexpat.xmlparser is now immutable

* array.arrayiterator is now immutable

* _thread types are now immutable

* _csv types are now immutable

* _queue.SimpleQueue is now immutable

* mmap.mmap is now immutable

* unicodedata.UCD is now immutable

* sqlite3 types are now immutable

* _lsprof.Profiler is now immutable

* _overlapped.Overlapped is now immutable

* _operator types are now immutable

* winapi__overlapped.Overlapped is now immutable

* _lzma types are now immutable

* _bz2 types are now immutable

* _dbm.dbm and _gdbm.gdbm are now immutable
(cherry picked from commit 00710e6346fd2394aa020b2dfae170093effac98)

Co-authored-by: Erlend Egeberg Aasland 

Co-authored-by: Erlend Egeberg Aasland

bpo-42972: Fully support GC protocol for _operator heap types (GH-26371) (GH-26413)

2021-05-27T21:49:43+00:00

(cherry picked from commit f4b70c22c8e37dd7a06702e30b121a6651683421)

Co-authored-by: Erlend Egeberg Aasland

bpo-40137: Add pycore_moduleobject.h internal header (GH-25507)

2021-04-21T22:52:52+00:00

Add pycore_moduleobject.h internal header file with static inline
functions to access module members:

* _PyModule_GetDict()
* _PyModule_GetDef()
* _PyModule_GetState()

These functions don't check at runtime if their argument has a valid
type and can be inlined even if Python is not built with LTO.

_PyType_GetModuleByDef() uses _PyModule_GetDef().

Replace PyModule_GetState() with _PyModule_GetState() in the
extension modules, considered as performance sensitive:

* _abc
* _functools
* _operator
* _pickle
* _queue
* _random
* _sre
* _struct
* _thread
* _winapi
* array
* posix

The following extensions are now built with the Py_BUILD_CORE_MODULE
macro defined, to be able to use the internal pycore_moduleobject.h
header: _abc, array, _operator, _queue, _sre, _struct.

bpo-40791: Make compare_digest more constant-time. (GH-20444)

2020-11-21T08:55:23+00:00

* bpo-40791: Make compare_digest more constant-time.

The existing volatile `left`/`right` pointers guarantee that the reads will all occur, but does not guarantee that they will be _used_. So a compiler can still short-circuit the loop, saving e.g. the overhead of doing the xors and especially the overhead of the data dependency between `result` and the reads. That would change performance depending on where the first unequal byte occurs. This change removes that optimization.

(This is change #1 from https://bugs.python.org/issue40791 .)

bpo-40077: Convert _operator to use PyType_FromSpec (GH-21954)

2020-08-26T17:22:27+00:00

bpo-40791: Use CRYPTO_memcmp() for compare_digest (#20456)

2020-05-27T19:50:06+00:00

hashlib.compare_digest uses OpenSSL's CRYPTO_memcmp() function
when OpenSSL is available.

Note: The _operator module is a builtin module. I don't want to add
libcrypto dependency to libpython. Therefore I duplicated the wrapper
function and added a copy to _hashopenssl.c.

bpo-39943: Add the const qualifier to pointers on non-mutable PyUnicode data. (GH-19345)

2020-04-11T07:48:40+00:00

bpo-1635741: Port operator module to multiphase initialization (PEP 489) (GH-19150)

2020-03-25T02:18:47+00:00

bpo-40024: Update C extension modules to use PyModule_AddType() (GH-19119)

2020-03-24T22:08:51+00:00

Update _asyncio, _bz2, _csv, _curses, _datetime,
_io, _operator, _pickle, _queue, blake2,
multibytecodec and overlapped C extension modules
to use PyModule_AddType().