Matthew Rahtz [Sat, 12 Mar 2022 12:20:12 +0000 (12:20 +0000)]
bpo-43224: Implement PEP 646 changes to genericaliasobject.c (GH-31019)
Specifically, prepare for starring of tuples via a new genericalias iter type. GenericAlias also partially supports the iterator protocol after this change.
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com> Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com> Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Oleksandr Pavlyk [Fri, 11 Mar 2022 22:19:35 +0000 (16:19 -0600)]
bpo-46968: Fix faulthandler for Sapphire Rapids Xeon (GH-31789)
In Linux kernel 5.14 one can dynamically request size of altstacksize
based on hardware capabilities with getauxval(AT_MINSIGSTKSZ).
This changes allows for Python extension's request to Linux kernel
to use AMX_TILE instruction set on Sapphire Rapids Xeon processor
to succeed, unblocking use of the ISA in frameworks.
Introduced HAVE_LINUX_AUXVEC_H in configure.ac and pyconfig.h.in
Used cpython_autoconf:269 docker container to generate configure.
slateny [Fri, 11 Mar 2022 19:05:51 +0000 (11:05 -0800)]
bpo-31327: Update time documentation to reflect possible errors (GH-31460)
As per the comments, this mirrors the [datetime documentation](https://docs.python.org/3/library/datetime.html#datetime.datetime.fromtimestamp).
```
>>> import time
>>> time.localtime(999999999999999999999)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OverflowError: timestamp out of range for platform time_t
>>> time.localtime(-3600)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OSError: [Errno 22] Invalid argument
```
Serhiy Storchaka [Fri, 11 Mar 2022 08:47:26 +0000 (10:47 +0200)]
bpo-44796: Unify TypeVar and ParamSpec substitution (GH-31143)
Add methods __typing_subst__() in TypeVar and ParamSpec.
Simplify code by using more object-oriented approach, especially
the C code for types.GenericAlias and the Python code for
collections.abc.Callable.
GH-30297 removed a duplicate `from test import support` statement from `test_asyncio.test_sslproto`. However, in between that PR being filed and it being merged, GH-31275 removed the _other_ `from test import support` statement. This means that `support` is now undefined in `test_asyncio.test_sslproto`, causing the CI to fail on all platforms for all PRS.
Matt Bogosian [Thu, 10 Mar 2022 14:42:15 +0000 (08:42 -0600)]
bpo-46581: Propagate private vars via _GenericAlias.copy_with (GH-31061)
GH-26091 added the _typevar_types and _paramspec_tvars instance
variables to _GenericAlias. However, they were not propagated
consistently. This commit addresses the most prominent deficiency
identified in bpo-46581 (namely their absence from
_GenericAlias.copy_with), but there could be others.
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Christian Heimes [Thu, 10 Mar 2022 12:43:40 +0000 (14:43 +0200)]
bpo-40280: Skip more tests/features that don't apply to Emscripten (GH-31791)
- fd inheritance can't be modified because Emscripten doesn't support subprocesses anyway.
- setpriority always fails
- geteuid no longer causes problems with latest emsdk
- umask is a stub
- geteuid / getuid always return 0, but process cannot chown to random uid.
bpo-40280: Block more non-working syscalls in Emscripten (GH-31757)
- getgroups always fails.
- geteuid and getegid always return 0 (root), which confuse tarfile and
tests.
- hardlinks (link, linkat) always fails.
- non-encodable file names are not supported by NODERAWFS layer.
- mark more tests with dependency on subprocess and multiprocessing.
Mocking does not work if the module fails to import.
Taneli Hukkinen [Tue, 8 Mar 2022 08:26:13 +0000 (10:26 +0200)]
bpo-40059: Add tomllib (PEP-680) (GH-31498)
This adds a new standard library module, `tomllib`, for parsing TOML.
The implementation is based on Tomli (https://github.com/hukkin/tomli).
## Steps taken (converting `tomli` to `tomllib`)
- Move everything in `tomli:src/tomli` to `Lib/tomllib`. Exclude `py.typed`.
- Remove `__version__ = ...` line from `Lib/tomllib/__init__.py`
- Move everything in `tomli:tests` to `Lib/test/test_tomllib`. Exclude the following test data dirs recursively:
- `tomli:tests/data/invalid/_external/`
- `tomli:tests/data/valid/_external/`
- Create `Lib/test/test_tomllib/__main__.py`:
```python
import unittest
from . import load_tests
unittest.main()
```
- Add the following to `Lib/test/test_tomllib/__init__.py`:
```python
import os
from test.support import load_package_tests
bpo-46170: Improve the error message when subclassing NewType (GH-30268)
Co-authored-by: Alex Waygood <alex.waygood@gmail.com> Co-authored-by: Nikita Sobolev <mail@sobolevn.me> Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
bpo-46940: Don't override existing AttributeError suggestion information (GH-31710)
When an exception is created in a nested call to PyObject_GetAttr, any
external calls will override the context information of the
AttributeError that we have already placed in the most internal call.
This will cause the suggestions we create to nor work properly as the
attribute name and object that we will be using are the incorrect ones.
To avoid this, we need to check first if these attributes are already
set and bail out if that's the case.
MojoVampire [Sun, 6 Mar 2022 11:49:42 +0000 (11:49 +0000)]
bpo-14156: Make argparse.FileType work correctly for binary file modes when argument is '-' (GH-13165)
Also made modes containing 'a' or 'x' act the same as a mode containing 'w' when argument is '-'
(so 'a'/'x' return sys.stdout like 'w', and 'ab'/'xb' return sys.stdout.buffer like 'wb').
Victor Stinner [Thu, 3 Mar 2022 23:41:57 +0000 (00:41 +0100)]
bpo-46913: Skip test_ctypes.test_shorts() on UBSan (GH-31674)
If Python is built with UBSan, test_ctypes now skips test_shorts().
This change allows to run test_ctypes to check for new UBSan regression,
but the known test_shorts() undefined behavior must be fixed.