Merge tag 'v3.8.0' into 3.8

Python 3.8.0

diff --cc Doc/whatsnew/3.8.rst
index 85351e10e69944675886a009c8e184bb833de0d0,d80005fda3673f57ec9eaffa3f28d45631070f4e..e1388e2169f4743c9be6b9646d22a06ac99d98da
--- 1/Doc/whatsnew/3.8.rst
--- 2/Doc/whatsnew/3.8.rst
+++ b/Doc/whatsnew/3.8.rst
@@@ -47,6 -47,16 +47,8 @@@
  This article explains the new features in Python 3.8, compared to 3.7.
  For full details, see the :ref:`changelog <changelog>`.
  
 -Prerelease users should be aware that this document is currently in
 -draft form. It will be updated as Python 3.8 moves towards release, so
 -it's worth checking back even after reading earlier versions. Some
 -notable items not yet covered are:
 -
 -* :pep:`578` - Runtime audit hooks for potentially sensitive operations
 -* ``python -m asyncio`` runs a natively async REPL
 -
+ Python 3.8 was released on October 14th, 2019.
+ 
  .. testsetup::
  
     from datetime import date