Edit: `math.pow` changes removed on Mark's request.


https://bugs.python.org/issue38237



Automerge-Triggered-By: @rhettinger

* If Py_SetPath() has been called, _PyConfig_InitPathConfig() now
  uses its value.
* Py_Initialize() now longer copies path configuration from PyConfig
  to the global path configuration (_Py_path_config).

Based on a comment from @asvetlov https://github.com/python/cpython/pull/15735#discussion_r323619076, this removes the provisional note for ``asyncio.run()`` in the documentation.

Automerge-Triggered-By: @1st1

The DLL path is not computed from any user configuration and cannot
be configured by PyConfig. Instead, add a new _Py_dll_path global variable.

Remove _PyConfig_SetPathConfig(): replaced with _PyPathConfig_Init().

Py_Initialize() now longer sets the "global path configuration",
but only initialize _Py_dll_path.

ProactorDatagramTransportTests tests are too close to the
implementation.

It did not list the argument added in d4cc7bf9.


https://bugs.python.org/issue6559



Automerge-Triggered-By: @gpshead

Mention frame.f_trace in sys.settrace docs, as well as the fact you still
need to call `sys.settrace` to enable the tracing machinery before setting
`frame.f_trace` will have any effect.

* Check intersection of two sets explicitly

Comparing ``len(a) > ``len(a - b)`` is essentially looking for an
intersection between the two sets. If set ``b`` does not intersect ``a``
then ``len(a - b)`` will be equal to ``len(a)``. This logic is more
clearly expressed as ``a & b``.

* Change while/pop to a for-loop

Copying the list, then repeatedly popping the first element was
unnecessarily slow. I also cleaned up a couple other inefficiencies.
There's no need to unpack a tuple, then re-pack and append it. The list
can be created with the first element instead of empty. Secondly, the
``endswith`` method returns a bool, so there's no need for an if-
statement to set ``encoding`` to True or False.

* Use set.intersection to check for intersections

``a.intersection(b)`` method is more clear of purpose than ``not
a.isdisjoint(b)`` and avoids an unnecessary set construction that ``a &
set(b)`` performs.

* Use not isdisjoint instead of intersection

While it reads slightly worse, the isdisjoint method will stop when it
finds a counterexample and returns a bool, rather than looping over the
entire iterable and constructing a new set.

* Make dict and weakref offsets opaque for C heap types

* Add news

https://bugs.python.org/issue38155

Signed-off-by: Jason Plurad <pluradj@us.ibm.com>

The function return type is void, not int.

dump_traceback_later() and cancel_dump_traceback_later() functions of
the faulthandler module are always available since Python 3.7.

It is a known and tracked bug: disable the test until it's fixed.

Add _PyRuntimeState.preinitializing field: set to 1 while
Py_PreInitialize() is running.

_PyRuntimeState: rename also pre_initialized field to preinitialized.

_PyObject_Dump() now dumps the object address for freed objects and
objects with ob_type=NULL.

When a Python thread has no frame, _Py_DumpTraceback() and
_Py_DumpTracebackThreads() now write "<no Python frame>", rather than
writing nothing.

This includes such names as "cls", "self", "typename", "_typename",
"fields" and "_fields".
Passing positional arguments by keyword is deprecated.

A little change on first paragraph of python tutorial to be more clearly



https://bugs.python.org/issue37904



Automerge-Triggered-By: @ericvsmith

Even when the helper is not started yet.

This behavior follows conventional generator one.
There is no reason for `async_generator_athrow` to handle `gen.throw()` differently.



https://bugs.python.org/issue38013

In the format string for assert_called the evaluation order is incorrect and hence for mock's without name, 'None' is printed whereas it should be 'mock' like for other messages. The error message is ("Expected '%s' to have been called." % self._mock_name or 'mock').

When using multiprocesss (-jN), the main process now uses a timeout
of 60 seconds instead of the double of the --timeout value. The
buildbot server stops a job which does not produce any output in 1200
seconds.

See https://bugs.python.org/issue38192 .



https://bugs.python.org/issue38192

One happens when EditorWindow.close is called twice.
Printing a traceback, when IDLE is run from a terminal,
is useless and annoying.