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

These appeared in commit c5ae169e.  The comment on them, as well as
the presence among them of a rule for the .gitignore file itself,
indicate that the author intended these lines to remain only in their
own local working tree -- not to get committed even to their own repo,
let alone merged upstream.

They did nevertheless get committed, because it turns out that Git
takes no notice of what .gitignore says about files that it's already
tracking... for example, this .gitignore file itself.

Give effect to these lines' original intention, by deleting them. :-)

Git tip, for reference: the `.git/info/exclude` file is a handy way
to do exactly what these lines were originally intended to do.  A
related handy file is `~/.config/git/ignore`.  See gitignore(5),
aka `git help ignore`, for details.



https://bugs.python.org/issue37936



Automerge-Triggered-By: @zware