Christian Heimes [Mon, 25 Oct 2021 08:25:27 +0000 (11:25 +0300)]
bpo-45548: Remove _math.c workarounds for pre-C99 libm (GH-29179)
The :mod:`math` and :mod:`cmath` implementation now require a C99 compatible
``libm`` and no longer ship with workarounds for missing acosh, asinh,
expm1, and log1p functions.
The changeset also removes ``_math.c`` and moves the last remaining
workaround into ``_math.h``. This simplifies static builds with
``Modules/Setup`` and resolves symbol conflicts.
Co-authored-by: Mark Dickinson <mdickinson@enthought.com> Co-authored-by: Brett Cannon <brett@python.org> Signed-off-by: Christian Heimes <christian@python.org>
Keep track of whether unsafe_tuple_compare() calls are resolved by the very
first tuple elements, and adjust strategy accordingly. This can significantly
cut the number of calls made to the full-blown PyObject_RichCompareBool(),
and especially when duplicates are rare.
William Andrea [Sat, 23 Oct 2021 16:24:02 +0000 (12:24 -0400)]
Expand about soft keywords in the docs for keyword.py (GH-29139)
Add link at the top and fix the existing links to point to the "[soft keywords](https://docs.python.org/3.10/reference/lexical_analysis.html#soft-keywords)" section created in the Python 3.10 docs.
Eric Snow [Fri, 22 Oct 2021 23:20:03 +0000 (17:20 -0600)]
bpo-45506: Normalize _PyPathConfig.stdlib_dir when calculated. (#29040)
The recently added PyConfig.stdlib_dir was being set with ".." entries. When __file__ was added for from modules this caused a problem on out-of-tree builds. This PR fixes that by normalizing "stdlib_dir" when it is calculated in getpath.c.
Nikita Sobolev [Fri, 22 Oct 2021 21:57:24 +0000 (00:57 +0300)]
bpo-45574: fix warning about `print_escape` being unused (GH-29172)
It used to be like this:
<img width="1232" alt="Снимок экрана 2021-10-22 в 23 07 40" src="https://user-images.githubusercontent.com/4660275/138516608-fef6ec01-a96a-40f4-81ef-52265b0f536b.png">
Quick `grep` tells that it is just used in one place under `Py_DEBUG`: https://github.com/python/cpython/blame/f6e8b80d20159596cf641305bad3a833bedd2f4f/Parser/tokenizer.c#L1047-L1051
<img width="752" alt="Снимок экрана 2021-10-22 в 23 08 09" src="https://user-images.githubusercontent.com/4660275/138516684-ea503136-1e92-48a5-95bb-419e190d5866.png">
I am not sure, but it also looks like a private thing, it should not affect other users.
Christian Heimes [Fri, 22 Oct 2021 16:28:23 +0000 (19:28 +0300)]
bpo-45570: Simplify setup macros for pyexpat (GH-29159)
* ``HAVE_EXPAT_CONFIG_H`` is not used by our code and not used by
system-wide expat header files
* ``USE_PYEXPAT_CAPI`` is no longer used by our code
* ``XML_POOR_ENTROPY`` should be defined in expat_config.h
Signed-off-by: Christian Heimes <christian@python.org>
Christian Heimes [Fri, 22 Oct 2021 13:36:28 +0000 (16:36 +0300)]
bpo-43974: Move Py_BUILD_CORE_MODULE into module code (GH-29157)
setup.py no longer defines Py_BUILD_CORE_MODULE. Instead every
module defines the macro before #include "Python.h" unless
Py_BUILD_CORE_BUILTIN is already defined.
Py_BUILD_CORE_BUILTIN is defined for every module that is built by
Modules/Setup.
The PR also simplifies Modules/Setup. Makefile and makesetup
already define Py_BUILD_CORE_BUILTIN and include Modules/internal
for us.
Signed-off-by: Christian Heimes <christian@python.org>
Neil Schemenauer [Thu, 21 Oct 2021 13:38:36 +0000 (06:38 -0700)]
bpo-45521: Fix a bug in the obmalloc radix tree code. (GH-29051)
MAP_BOT_LENGTH was incorrectly used to compute MAP_TOP_MASK instead of
MAP_TOP_LENGTH. On 64-bit machines, the error causes the tree to hold
46-bits of virtual addresses, rather than the intended 48-bits.
Christian Heimes [Thu, 21 Oct 2021 13:12:20 +0000 (16:12 +0300)]
bpo-45522: Allow to disable freelists on build time (GH-29056)
Freelists for object structs can now be disabled. A new ``configure``
option ``--without-freelists`` can be used to disable all freelists
except empty tuple singleton. Internal Py*_MAXFREELIST macros can now
be defined as 0 without causing compiler warnings and segfaults.
Signed-off-by: Christian Heimes <christian@python.org>
Kyungmin Lee [Wed, 20 Oct 2021 19:54:41 +0000 (04:54 +0900)]
bpo-45192: Fix a bug that infers the type of an os.PathLike[bytes] object as str (GH-28323)
An object implementing the os.PathLike protocol can represent a file
system path as a str or bytes object.
Therefore, _infer_return_type function should infer os.PathLike[str]
object as str type and os.PathLike[bytes] object as bytes type.
Petr Viktorin [Wed, 20 Oct 2021 09:32:14 +0000 (11:32 +0200)]
bpo-45474: Exclude all of marshal.h if Py_LIMITED_API is defined (GH-29061)
Also, reword the What's New messages: this doesn't change the limited API, it only brings the Py_LIMITED_API macro closer to the ideal of only allowing the limited API.
Zachary Ware [Wed, 20 Oct 2021 02:54:19 +0000 (21:54 -0500)]
bpo-45436: Fix tkinter tests with Tcl/Tk 8.6.11+ (GH-29077)
Since v8.6.11, a few configuration options seem to accept an empty value
where they did not previously; particularly the `type` of a `Menu`
widget, and the `compound` of any ttk widget with a label. Providing an
explicit expected error message to `checkEnumParam` bypasses the check
of an empty value, which no longer raises `TclError`.
Filipe Laíns [Tue, 19 Oct 2021 22:19:27 +0000 (23:19 +0100)]
bpo-25625: add contextlib.chdir (GH-28271)
Added non parallel-safe :func:`~contextlib.chdir` context manager to change
the current working directory and then restore it on exit. Simple wrapper
around :func:`~os.chdir`.
Signed-off-by: Filipe Laíns <lains@riseup.net> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Alex Waygood [Tue, 19 Oct 2021 20:30:27 +0000 (21:30 +0100)]
bpo-39679: Add tests for classmethod/staticmethod singledispatchmethods (GH-29034)
In Python 3.8 and 3.9, stacking `@functools.singledispatchmethod` on top of
`@classmethod` or `@staticmethod` caused an exception to be raised if the
method was registered using type-annotations rather than
`@method.register(int)`. This was not caught by unit tests, however, as the
tests only tested the `@method.register(int)` way of registering additional
implementations. The bug is no longer present in Python 3.10+, but
`test_functools.py` is still lacking regression tests for these cases. This
commit adds these test cases.
* The parser was not correctly computing the offset and the string
source for E_LINECONT errors due to the incorrect usage of strtok().
* The parser was not correctly unwinding the call stack when a tokenizer
exception happened in rules involving optionals ('?', [...]) as we
always make them return valid results by using the comma operator. We
need to check first if we don't have an error before continuing.
Serhiy Storchaka [Tue, 19 Oct 2021 19:11:28 +0000 (22:11 +0300)]
bpo-45500: Rewrite test_dbm (GH-29002)
* Generate test classes at import time. It allows to filter them when
run with unittest. E.g: "./python -m unittest test.test_dbm.TestCase_gnu -v".
* Create a database class in a new directory which will be removed after
test. It guarantees that all created files and directories be removed
and will not conflict with other dbm tests.
* Restore dbm._defaultmod after tests. Previously it was set to the last
dbm module (dbm.dumb) which affected other tests.
* Enable the whichdb test for dbm.dumb.
* Move test_keys to the correct test class. It does not test whichdb().
* Remove some outdated code and comments.
Filipe Laíns [Tue, 19 Oct 2021 18:42:13 +0000 (19:42 +0100)]
bpo-42174: fallback to sane values if the columns or lines are 0 in get_terminal_size (GH-29046)
I considered only falling back when both were 0, but that still seems
wrong, and the highly popular rich[1] library does it this way, so I
thought we should probably inherit that behavior.
[1] https://github.com/willmcgugan/rich
Signed-off-by: Filipe Laíns <lains@riseup.net> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Eric Snow [Sat, 16 Oct 2021 19:16:08 +0000 (13:16 -0600)]
bpo-45020: Default to using frozen modules unless running from source tree. (gh-28940)
The default was "off". Switching it to "on" means users get the benefit of frozen stdlib modules without having to do anything. There's a special-case for running-in-source-tree, so contributors don't get surprised when their stdlib changes don't get used.
Victor Stinner [Fri, 15 Oct 2021 17:45:34 +0000 (19:45 +0200)]
bpo-45440: Remove pymath.c fallbacks (GH-28977)
Remove fallbacks for missing round(), copysign() and hypot() in
Python/pymath.c. Python now requires these functions to build.
These fallbacks were needed on Visual Studio 2012 and older. They are
no longer needed since Visual Stuido 2013. Python is now built with
Visual Studio 2017 or newer since Python 3.6.