python / cpython

…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)

)

Fixed the name of the contributor (@selik).

Python 3.9.0a3

…H-15521)

…H-18116)

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

Use `from ... import ...` to ensure module is fully loaded before accessing its attributes.

collect() should not get an exception, but it does, logging the
exception is enough. Override sys.unraisablehook to decide how to
handle unraisable exceptions.

Py_FatalError() should be avoided whenever possible.

…mock (GH-16784)

The os.putenv() and os.unsetenv() functions are now always available.

On non-Windows platforms, Python now requires setenv() and unsetenv()
functions to build.

Remove putenv_dict from posixmodule.c: it's not longer needed.

The os.unsetenv() function is now also available on Windows.

Some portions of the pickle documentation hadn't been updated for the pickle protocol changes in Python 3.8 (new protocol 5, default protocol 4). This PR fixes those docs.


https://bugs.python.org/issue39426

As the function was not registering in the active patches, the mocks
started by `mock.patch.dict` were not being stopped when
`mock.patch.stopall` was being called.

* add test for path.dict using OrderedDict

Co-authored-by: Yu Tomita nekobon@users.noreply.github.com

…er (GH-18155)

… library (GH-11583)

Co-Authored-By: Tim Peters <tim.peters@gmail.com>

GH-18118)

* bpo-39421: Fix posible crash in heapq with custom comparison operators

* fixup! bpo-39421: Fix posible crash in heapq with custom comparison operators

* fixup! fixup! bpo-39421: Fix posible crash in heapq with custom comparison operators