python / cpython

XFS filesystem is limited to 32-bit timestamp, but the utimensat()
syscall doesn't fail. Moreover, there is a VFS bug which returns
a cached timestamp which is different than the value on disk.

https://bugzilla.redhat.com/show_bug.cgi?id=1795576
https://bugs.python.org/issue39460#msg360952

Some of the *SetItem methods in the C API steal a reference to the
given value. This annotates the better behaved ones to assure the
reader that these are not the ones with the inconsistent behaviour.

* 📜🤖 Added by blurb_it.

* make docs consistent with signature

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>

Improve multi-threaded performance by dropping the GIL in the fast path
of bytes.join. To avoid increasing overhead for small joins, it is only
done if the output size exceeds a threshold.

As Windows 7 is not supported by Python 3.9, we just replace the dynamic load with a static import. Backports will have a different fix to ensure they continue to behave the same.

Adds missing test files to Windows installer to wrap up bpo-39459

DTrace build fix for FreeBSD.

- allowing passing an extra flag as it need to define the arch size.
- casting some probe's arguments.

)

Co-Authored-By: Kyle Stanley <aeros167@gmail.com>

…re (GH-18093)

…on Windows (GH-17961)

In bpo-36264 os.path.expanduser was changed to ignore HOME on Windows.

Path.expanduser/home still honored HOME despite being documented as behaving the same
as os.path.expanduser. This makes them also ignore HOME so that both implementations
behave the same way again.

Pass explicitly the Python thread state (tstate) in ceval.c.

…18226)

* Change the source for the SAT data to a primary source.
* Fix typo in the standard deviation
* Clarify that the binomial probabalities are just for the Python room.

#18221)

Whether or not overlap regions for self-intersecting polygons
or multiple shapes are filled depends on the operating system graphics,
typeof overlap, and number of overlaps.

intern_strings() now raises a SystemError, rather than calling
Py_FatalError().

intern_string_constants() now reports exceptions to the caller,
rather than ignoring silently exceptions.

_PyCodecRegistry_Init() now reports exceptions to the caller,
rather than calling Py_FatalError().

Expose dialog buttons to test code and complete their test coverage.
Complete test coverage for highlights and keys tabs.

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>

If the export count is negative, _memory_release() now raises a
SystemError and returns -1, rather than calling Py_FatalError()
which aborts the process.

If PyModule_Create2() is called when the Python import machinery is
not initialized, it now raises a SystemError and returns NULL,
instead of calling Py_FatalError() which aborts the process.

The caller must be prepared to handle NULL anyway.

Fix also umask formatting: use octal prefix.

https://bugs.python.org/issue39453



Automerge-Triggered-By: @pablogsal

Automerge-Triggered-By: @pablogsal

…shes (GH-18181)

- The gc.collect is needed for other implementations, such as pypy
- Using context managers over multiple lines will only catch the warning from the first line in the context!
- remove a skip for a test that no longer fails on pypy

)

* asyncio.run only available in 3.8+

* iscoroutinefunction has important bungfixes in 3.8

* IsolatedAsyncioTestCase only available in 3.8+

…ust regrtest (GH-13480)

* Add DICT_UPDATE and DICT_MERGE bytecodes. Use them for ** unpacking.

* Remove BUILD_MAP_UNPACK and BUILD_MAP_UNPACK_WITH_CALL, as they are now unused.

* Update magic number for ** unpacking opcodes.

* Update dis.rst to incorporate new bytecodes.

* Add blurb entry.

…gicMock (#16029)

… the cache (GH-4641)

)