_PyCoreConfig:

* Rename coerce_c_locale to _coerce_c_locale
* Rename coerce_c_locale_warn to _coerce_c_locale_warn

These fields are now private (name prefixed by "_").

The test tries to fill the receiver's socket buffer and expects an
error. But the RDS protocol doesn't require that. Moreover, the Linux
implementation of RDS expects that the producer of the messages
reduces its rate, it's not the role of the receiver to trigger an
error.

The test fails on Fedora 28 by design, so remove it.

This reverts commit afde1c1a.

Also convert os.get_blocking() and os.set_blocking().

Include ``openssl/dh.h`` header file to fix implicit function declaration of ``DH_free()``.
Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

Two major changes:
- Move case statements out of the TARGET macro.
- Move PREDICT macro invocations after the case label.

* Modify DEFAULT_CONFIG for AIX

* bedevere/news did not like old name

* Modify NEWS entry

* Modified per peer review

* Define and use NULL_STR constant to account for AIX libc behavior

* Modify per peer review

* Modify NEWS

Assume tzname exists. Only use a hack to compute altzone if it's not defined.

* Skip posix_spawn scheduler tests on BSD. We were already skyping similar tests as the behaviour can depend on the implementation in some cases.

When os.fork() is called (on platforms that support it) all threads but the current one are destroyed in the child process. Consequently we must ensure that all but the associated interpreter are likewise destroyed. The main interpreter is critical for runtime operation, so we must ensure that fork only happens in the main interpreter.

https://bugs.python.org/issue34651

* bpo-33649: Refresh Tasks and Futures pages

* Fixes

* Fix markup

Co-authored-by: Benjamin Peterson <benjamin@python.org>

* small clarification

* edits to protocols doc

* Edit async queue doc