* Fix suspicious.py to actually print the unused rules

* Fix the other `self.warn` calls

Sync importlib.metadata with importlib_metadata 0.20.

* Use the 'p' format unit instead of manually called PyObject_IsTrue().
* Pass boolean value instead 0/1 integers to functions that needs boolean.
* Convert some arguments to boolean only once.

Only AttributeError should be silenced.

Remove methods Element.getchildren(), Element.getiterator() and
ElementTree.getiterator() and the xml.etree.cElementTree module.

Fixes a case in which email._header_value_parser.get_unstructured hangs the system for some invalid headers. This covers the cases in which the header contains either:
- a case without trailing whitespace
- an invalid encoded word

https://bugs.python.org/issue37764

This fix should also be backported to 3.7 and 3.8


https://bugs.python.org/issue37764

MSVC 2015 supports %zd / %zu.  "z" is portable enough nowadays.

Fix a ctypes regression of Python 3.8. When a ctypes.Structure is
passed by copy to a function, ctypes internals created a temporary
object which had the side effect of calling the structure finalizer
(__del__) twice. The Python semantics requires a finalizer to be
called exactly once. Fix ctypes internals to no longer call the
finalizer twice.

Create a new internal StructParam_Type which is only used by
_ctypes_callproc() to call PyMem_Free(ptr) on Py_DECREF(argument).
StructUnionType_paramfunc() creates such object.

when built on non-Windows system without fd system call support,
like older versions of macOS.

Fix faulthandler.cancel_dump_traceback_later() call
if cancel_dump_traceback_later() was not called previously.

Adds a link to `dateutil.parser.isoparse` in the documentation.

It would be nice to set up intersphinx for things like this, but I think we can leave that for a separate PR.

CC: @pitrou 

[bpo-37979](https://bugs.python.org/issue37979)


https://bugs.python.org/issue37979



Automerge-Triggered-By: @pitrou

With `symtable_visit_expr` now correctly adjusting the recursion depth for named
expressions, `symtable_handle_namedexpr` should be leaving it alone.

Also adds a new check to `PySymtable_BuildObject` that raises `SystemError`
if a successful first symbol analysis pass fails to keep the stack depth
accounting clean.

Added tests for PyDateTime_xxx_GET_xxx() macros of the C API of
the datetime module.

* Fix call_matcher for mock when using methods

* Add NEWS entry

* Use None check and convert doctest to unittest

* Use better name for mock in tests. Handle _SpecState when the attribute was not accessed and add tests.

* Use reset_mock instead of reinitialization. Change inner class constructor signature for check

* Reword comment regarding call object lookup logic

https://bugs.python.org/issue37964



Automerge-Triggered-By: @benjaminp

https://bugs.python.org/issue37965


https://bugs.python.org/issue37965



Automerge-Triggered-By: @benjaminp