Victor Stinner [Mon, 12 Apr 2021 08:44:53 +0000 (10:44 +0200)]
bpo-43680: _pyio.open() becomes a static method (GH-25354)
The Python _pyio.open() function becomes a static method to behave as
io.open() built-in function: don't become a bound method when stored
as a class variable. It becomes possible since static methods are now
callable in Python 3.10. Moreover, _pyio.OpenWrapper becomes a simple
alias to _pyio.open.
init_set_builtins_open() now sets builtins.open to io.open, rather
than setting it to io.OpenWrapper, since OpenWrapper is now an alias
to open in the io and _pyio modules.
bpo-43723: Deprecate camelCase aliases from threading (GH-25174)
The snake_case names have existed since Python 2.6, so there is
no reason to keep the old camelCase names around. One similar
method, threading.Thread.isAlive, was already removed in
Python 3.9 (bpo-37804).
Victor Stinner [Sun, 11 Apr 2021 21:57:09 +0000 (23:57 +0200)]
bpo-43770: Refactor PyType_Ready() function (GH-25336)
* Split PyType_Ready() into sub-functions.
* type_ready_mro() now checks if bases are static types earlier.
* Check tp_name earlier, in type_ready_checks().
* Add _PyType_IsReady() macro to check if a type is ready.
Victor Stinner [Sat, 10 Apr 2021 22:17:39 +0000 (00:17 +0200)]
bpo-43753: Add Py_Is() and Py_IsNone() functions (GH-25227)
Add the Py_Is(x, y) function to test if the 'x' object is the 'y'
object, the same as "x is y" in Python. Add also the Py_IsNone(),
Py_IsTrue(), Py_IsFalse() functions to test if an object is,
respectively, the None singleton, the True singleton or the False
singleton.
Victor Stinner [Sat, 10 Apr 2021 21:15:32 +0000 (23:15 +0200)]
bpo-43770: Refactor type_new() function (GH-25325)
* Split type_new() into into many small functions.
* Add type_new_ctx structure to pass variables between subfunctions.
* Initialize some PyTypeObject and PyHeapTypeObject members earlier
in type_new_alloc().
* Rename variables to more specific names.
* Add "__weakref__" identifier for type_new_visit_slots().
* Factorize code to convert a method to a classmethod
(__init_subclass__ and __class_getitem__).
* Add braces to respect PEP 7.
* Move variable declarations where the variables are initialized.
Matthew Suozzo [Sat, 10 Apr 2021 03:45:50 +0000 (23:45 -0400)]
bpo-43478: Restrict use of Mock objects as specs (GH-25326)
* Restrict using Mock objects as specs as this is always a test bug where the resulting mock is misleadingly useless.
* Skip a broken test that exposes a bug elsewhere in mock (noted in the original issue).
Barney Gale [Fri, 9 Apr 2021 20:52:49 +0000 (21:52 +0100)]
bpo-40107: Switch to using io.open() for pathlib.Path.open() (GH-25240)
Previously we had identical behaviour but only allowed accessors to override os.open(). This change allows the override to also construct the IO wrapper as well.
Static methods (@staticmethod) and class methods (@classmethod) now
inherit the method attributes (__module__, __name__, __qualname__,
__doc__, __annotations__) and have a new __wrapped__ attribute.
Changes:
* Add a repr() method to staticmethod and classmethod types.
* Add tests on the @classmethod decorator.
Mark Shannon [Thu, 8 Apr 2021 10:22:55 +0000 (11:22 +0100)]
bpo-43760: Streamline dispatch sequence for machines without computed gotos. (GH-25244)
* Do fetch and decode at end of opcode then jump directly to switch.
Should allow compilers that don't support computed-gotos, specifically MSVC,
to generate better code.
Barney Gale [Wed, 7 Apr 2021 22:50:13 +0000 (23:50 +0100)]
bpo-39899: os.path.expanduser(): don't guess other Windows users' home directories if the basename of the current user's home directory doesn't match their username. (GH-18841)
This makes `ntpath.expanduser()` match `pathlib.Path.expanduser()` in this regard, and is more in line with `posixpath.expanduser()`'s cautious approach.
Also remove the near-duplicate implementation of `expanduser()` in pathlib, and by doing so fix a bug where KeyError could be raised when expanding another user's home directory.
Victor Stinner [Wed, 7 Apr 2021 19:34:22 +0000 (21:34 +0200)]
bpo-43244: Rename pycore_ast.h functions to _PyAST_xxx() (GH-25252)
Rename AST functions of pycore_ast.h to use the "_PyAST_" prefix.
Remove macros creating aliases without prefix. For example, Module()
becomes _PyAST_Module(). Update Grammar/python.gram to use
_PyAST_xxx() functions.
Yeting Li [Wed, 7 Apr 2021 11:27:41 +0000 (19:27 +0800)]
bpo-43075: Fix ReDoS in urllib AbstractBasicAuthHandler (GH-24391)
Fix Regular Expression Denial of Service (ReDoS) vulnerability in
urllib.request.AbstractBasicAuthHandler. The ReDoS-vulnerable regex
has quadratic worst-case complexity and it allows cause a denial of
service when identifying crafted invalid RFCs. This ReDoS issue is on
the client side and needs remote attackers to control the HTTP server.
Victor Stinner [Wed, 7 Apr 2021 11:01:09 +0000 (13:01 +0200)]
bpo-43244: Remove Yield macro from pycore_ast.h (GH-25243)
* pycore_ast.h no longer defines the Yield macro.
* Fix a compiler warning on Windows: "warning C4005: 'Yield': macro
redefinition".
* Python-ast.c now defines directly functions with their real
_Py_xxx() name, rather than xxx().
* Remove "#undef Yield" in C files including pycore_ast.h.
bpo-38605: Update "Future statements" docs since PEP 563 is always enabled (GH-25236)
Update documentation section for "Future statements" to reflect that `from __future__ import annotations` is on by default, and no features require using the future statement now.
Ken Jin [Tue, 6 Apr 2021 16:03:00 +0000 (00:03 +0800)]
Update pattern matching docs for changes to the PEP (#25185)
See:
- https://github.com/python/peps/pull/1909 (__match_args__ must be a tuple)
- https://github.com/python/peps/pull/1908 (allow keyword patterns for int(x) etc.)
Steve Dower [Tue, 6 Apr 2021 12:08:30 +0000 (13:08 +0100)]
bpo-43745: Actually updates Windows release to OpenSSL 1.1.1k. (GH-25213)
Earlier releases were mislabelled and included 1.1.1i again.
The tag/directory name is updated to ensure that builds get the fresh bits. However, the openssl-bin-1.1.1k tag in the repository has been forcibly updated, so fresh builds will be fine even without this change.