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.
Replace broken example code with correct simpler code. (GH-25162)
The open() was missing 'w' to indicate it was in a write-mode.
Even then, the open().close() operation was distracting because
it is an unusual way to "touch" as file. Using os.remove()
instead is simpler and less distracting.
Victor Stinner [Fri, 2 Apr 2021 13:45:37 +0000 (15:45 +0200)]
bpo-43688: Support the limited C API in debug mode (GH-25131)
The limited C API is now supported if Python is built in debug mode
(if the Py_DEBUG macro is defined). In the limited C API, the
Py_INCREF() and Py_DECREF() functions are now implemented as opaque
function calls, rather than accessing directly the PyObject.ob_refcnt
member, if Python is built in debug mode and the Py_LIMITED_API macro
targets Python 3.10 or newer. It became possible to support the
limited C API in debug mode because the PyObject structure is the
same in release and debug mode since Python 3.8 (see bpo-36465).
The limited C API is still not supported in the --with-trace-refs
special build (Py_TRACE_REFS macro).
Reorganize pycore_interp_init() to initialize singletons before the
the first PyType_Ready() call. Fix an issue when Python is configured
using --without-doc-strings.