[3.9] bpo-39349: Add cancel_futures to Executor.shutdown base class (GH-22023) (GH-22048)
* Add cancel_futures parameter to the Executor base class, since it was missed in the original PR (https://github.com/python/cpython/pull/18057) that added cancel_futures.
(cherry picked from commit 17dc1b7)
Pablo Galindo [Tue, 1 Sep 2020 20:40:57 +0000 (21:40 +0100)]
[3.9] bpo-41654: Fix deallocator of MemoryError to account for subclasses (GH-22020) (GH-22045)
When allocating MemoryError classes, there is some logic to use
pre-allocated instances in a freelist only if the type that is being
allocated is not a subclass of MemoryError. Unfortunately in the
destructor this logic is not present so the freelist is altered even
with subclasses of MemoryError..
(cherry picked from commit 9b648a95ccb4c3b14f1e87158f5c9f5dbb2f62c0)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
bpo-37658: Fix asyncio.wait_for() to respect waited task status (GH-21894) (GH-21964)
Currently, if `asyncio.wait_for()` itself is cancelled it will always
raise `CancelledError` regardless if the underlying task is still
running. This is similar to a race with the timeout, which is handled
already.
(cherry picked from commit a2118a14627256197bddcf4fcecad4c264c1e39d)
Co-authored-by: Elvis Pranskevichus <elvis@magic.io>
Victor Stinner [Wed, 19 Aug 2020 17:25:22 +0000 (19:25 +0200)]
[3.9] bpo-40204: Allow pre-Sphinx 3 syntax in the doc (GH-21844) (GH-21901)
* bpo-40204: Allow pre-Sphinx 3 syntax in the doc (GH-21844)
Enable Sphinx 3.2 "c_allow_pre_v3" option and disable the
c_warn_on_allowed_pre_v3 option to make the documentation compatible
with Sphinx 2 and Sphinx 3.
* bpo-40204: Fix duplicates in the documentation (GH-21857)
Fix two Sphinx 3 issues:
Doc/c-api/buffer.rst:304: WARNING: Duplicate C declaration, also defined in 'c-api/buffer'.
Declaration is 'PyBUF_ND'.
Doc/c-api/unicode.rst:1603: WARNING: Duplicate C declaration, also defined in 'c-api/unicode'.
Declaration is 'PyObject* PyUnicode_Translate(PyObject *str, PyObject *table, const char *errors)'.
* bpo-40204: Add :noindex: in the documentation (GH-21859)
Add :noindex: to duplicated documentation to fix "duplicate object
description" errors.
For example, fix this Sphinx 3 issue:
Doc/library/configparser.rst:1146: WARNING: duplicate object
description of configparser.ConfigParser.optionxform, other instance
in library/configparser, use :noindex: for one of them
* bpo-40204, doc: Fix syntax of C variables (GH-21846)
For example, fix the following Sphinx 3 errors:
Doc/c-api/buffer.rst:102: WARNING: Error in declarator or parameters
Invalid C declaration: Expected identifier in nested name. [error at 5]
void \*obj
-----^
Doc/c-api/arg.rst:130: WARNING: Unparseable C cross-reference: 'PyObject*'
Invalid C declaration: Expected end of definition. [error at 8]
PyObject*
--------^
The modified documentation is compatible with Sphinx 2 and Sphinx 3.
* bpo-40204: Fix duplicated productionlist names in the doc (GH-21900)
Sphinx 3 disallows having more than one productionlist markup with
the same name. Simply remove names in this case, since names are not
shown anyway. For example, fix the Sphinx 3 warning:
Doc/reference/introduction.rst:96: duplicate token description
of *:name, other instance in reference/expressions
bpo-41568: Fix refleaks in zoneinfo subclasses (GH-21907)
* Fix refleak in C module __init_subclass__
This was leaking a reference to the weak cache dictionary for every
ZoneInfo subclass created.
* Fix refleak in ZoneInfo subclass's clear_cache
The previous version of the code accidentally cleared the global
ZONEINFO_STRONG_CACHE variable (and inducing `ZoneInfo` to create a new
strong cache) on calls to a subclass's `clear_cache()`. This would not
affect guaranteed behavior, but it's still not the right thing to do
(and it caused reference leaks).
(cherry picked from commit c3dd7e45cc5d36bbe2295c2840faabb5c75d83e4)
bpo-40782: Change asyncio.AbstractEventLoop.run_in_executor to be a method not a coroutine (GH-21852)
asyncio.AbstractEventLoop.run_in_executor should be a method that returns an asyncio Future, not an async method.
This matches the concrete implementations, and the documentation better.
(cherry picked from commit 29f84294d88ec493c2de9d6e8dbc12fae3778771)
Co-authored-by: James Weaver <james.barrett@bbc.co.uk>
bpo-31122: ssl.wrap_socket() now raises ssl.SSLEOFError rather than OSError when peer closes connection during TLS negotiation (GH-18772)
[bpo-31122](): ssl.wrap_socket() now raises ssl.SSLEOFError rather than OSError when peer closes connection during TLS negotiation
Reproducer: http://tiny.cc/f4ztnz (tiny url because some bot keeps renaming b.p.o.-nnn as bpo links)
(cherry picked from commit 495bd035662fda29639f9d52bb6baebea31d72fa)
On Git 2.28, "git diff master..." (3 dots) no longer works when
"fetch --depth=1" is used, whereas it works on Git 2.26.
Replace "..." (3 dots) with ".." (2 dots) in the "git diff" command
computing the list of modified files between the base branch and the
PR branch.
(cherry picked from commit eaa551702d80fd67219c48ee6a13ffb571ca360b)
Co-authored-by: Victor Stinner <vstinner@python.org>
test_run method test_fatal_error failed when run twice, as with
python -m test -m test_fatal_error test_idle test_idle
because func.called was not reinitialized to 0.
This bug caused a failure on a refleak buildbot.
(cherry picked from commit 416f0b71ba84fe83ee2ba4399b8a28712702980b)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
bpo-41468: Improve and test IDLE run error exit (GH-21798)
A message box pops up when an unexpected error stops the run process. Tell users it is likely a random glitch, but report it if not.
(cherry picked from commit f2e161c27964a59bc5ab20d96f87ba5862c6222d)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Doc: Add output to example code in programming FAQ (GH-21346)
Add output hint to document, part faq/programming, section [How do I write a function with output parameters (call by reference)?](https://docs.python.org/3/faq/programming.htmlGH-how-do-i-write-a-function-with-output-parameters-call-by-reference).
Doc: Add a link to tutorial page from `open()` doc (GH-21737)
Adds a link to the "Reading and Writing Files" page so users can
more easily discover how file handles are handled with the `with`
context manager vs without it.
(cherry picked from commit 705f14556545699ab615ec98f707b438f9603767)
Co-authored-by: Benjamin Kane <bbkane@users.noreply.github.com>
PyUnicodeEncodeError_Create has been deprecated with
`Py_DEPRECATED` macro. But it was not documented.
(cherry picked from commit 46e19b61d31ba99f049258efa4ff1334856a3643)
bpo-41467: Fix asyncio recv_into() on Windows (GH-21720)
On Windows, fix asyncio recv_into() return value when the socket/pipe
is closed (BrokenPipeError): return 0 rather than an empty byte
string (b'').
(cherry picked from commit 602a971a2af3a685d625c912c400cadd452718b1)
Co-authored-by: Victor Stinner <vstinner@python.org>
bpo-41425: Make tkinter doc example runnable (GH-21706)
Co-authored-by: Ankit Chandawala <achandaw@amazon.com> Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit c36dbac588e1d99975f285a874bb20e9f5040af4)
closes bpo-38156: Always handle interrupts in PyOS_StdioReadline. (GH-21569)
This consolidates the handling of my_fgets return values, so that interrupts are always handled, even if they come after EOF.
I believe PyOS_StdioReadline is still buggy in that I/O errors will not result in a proper Python exception being set. However, that is a separate issue.
(cherry picked from commit a74eea238f5baba15797e2e8b570d153bc8690a7)
Co-authored-by: Benjamin Peterson <benjamin@python.org>
bpo-41412 and bpo-40948: Windows installer updates (GH-21656)
Prevent installation on Windows 8 and earlier.
Download UCRT on demand when required (non-updated Windows 8.1 only)
Add reference to py launcher to post-install message
(cherry picked from commit 37a06cbe5c17c2aa6ad938339fd42531a8a0bea0)
Co-authored-by: Steve Dower <steve.dower@python.org>
Pablo Galindo [Mon, 27 Jul 2020 23:12:31 +0000 (00:12 +0100)]
[3.9] Validate the AST produced by the parser in debug mode (GH-21643) (GH-21646)
This will improve the debug experience if something fails in the produced AST. Previously, errors in the produced AST can be felt much later like in the garbage collector or the compiler, making debugging them much more difficult..
(cherry picked from commit 1332226b32da44087a55e1d71990ee6899dfd28a)
Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
bpo-41384: Raise TclError in tkinter.OptionMenu (GH-21601)
... when an unknown option is passed. TypeError was being raised because a 2to3 fix was missing.
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit f1d40f941a6483b1d4ea10f1051ace7b426fb8e7) Co-authored-by: Akuli <akuviljanen17@gmail.com>
bpo-41182 selector: use DefaultSelector based upon implementation (GH-21257)
On some platform such as VMware ESXi, DefaultSelector fails
to detect selector due to default value.
This fix adds a check and uses the correct selector depending upon
select implementation and actual call.
bpo-41341: Recursive evaluation of ForwardRef in get_type_hints (GH-21553)
The issue raised by recursive evaluation is infinite recursion with
recursive types. In that case, only the first recursive ForwardRef is
evaluated.
(cherry picked from commit 653f420b53a3aa87316cef59de8d3f5d9e11deb4)
bpo-41314: fixed annotations __future__ version (GH-21616)
PEP 563 was updated to change the release where `from __future__ import annotations` becomes the default (and only) behavior from 4.0 to 3.10. Update `__future__.py` and its docs to reflect this.
(cherry picked from commit 0028c14073109595e7532ec00bb1e8bf39ecfb4d)
bpo-32528: Document the change in inheritance of asyncio.CancelledError (GH-21474)
GH-msg373510
[bpo-32528]()/GH-13528 changed `asyncio.CancelledError` such that it no longer inherits from `concurrent.futures.CancelledError`. As this affects existing code, specifically when catching the latter instead of the former in exception handling, it should be documented in the "What's new in 3.8?" document.
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