diff options
author | Raymond Hettinger <rhettinger@users.noreply.github.com> | 2019-10-14 16:01:05 (GMT) |
---|---|---|
committer | GitHub <noreply@github.com> | 2019-10-14 16:01:05 (GMT) |
commit | 274bd013da707f9fb4a6f9e531fdc4288a9dd1ca (patch) | |
tree | 3ac447bd05228d82beb012d805dc4cf0625be719 /Doc/whatsnew | |
parent | d83fc2702951f56a7339aa95d62414ed6e0fb40d (diff) | |
download | cpython-274bd013da707f9fb4a6f9e531fdc4288a9dd1ca.zip cpython-274bd013da707f9fb4a6f9e531fdc4288a9dd1ca.tar.gz cpython-274bd013da707f9fb4a6f9e531fdc4288a9dd1ca.tar.bz2 |
Remove draft status. Add asyncio REPL example (GH-16785)
Diffstat (limited to 'Doc/whatsnew')
-rw-r--r-- | Doc/whatsnew/3.8.rst | 37 |
1 files changed, 29 insertions, 8 deletions
diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst index 8108fb7..85351e1 100644 --- a/Doc/whatsnew/3.8.rst +++ b/Doc/whatsnew/3.8.rst @@ -47,14 +47,6 @@ 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 - .. testsetup:: from datetime import date @@ -287,6 +279,18 @@ calculations can be shown:: (Contributed by Eric V. Smith and Larry Hastings in :issue:`36817`.) +PEP 578: Python Runtime Audit Hooks +----------------------------------- + +The PEP adds an Audit Hook and Verified Open Hook. Both are available from +Python and native code, allowing applications and frameworks written in pure +Python code to take advantage of extra notifications, while also allowing +embedders or system administrators to deploy builds of Python where auditing is +always enabled. + +See :pep:`578` for full details. + + PEP 587: Python Initialization Configuration -------------------------------------------- @@ -584,6 +588,23 @@ The :func:`ast.parse` function has some new flags: asyncio ------- +Running ``python -m asyncio`` launches a natively async REPL. This allows rapid +experimentation with code that has a top-level :keyword:`await`. There is no +longer a need to directly call ``asyncio.run()`` which would spawn a new event +loop on every invocation: + +.. code-block:: none + + $ python -m asyncio + asyncio REPL 3.8.0 + Use "await" directly instead of "asyncio.run()". + Type "help", "copyright", "credits" or "license" for more information. + >>> import asyncio + >>> await asyncio.sleep(10, result='hello') + hello + +(Contributed by Yury Selivanov in :issue:`37028`.) + On Windows, the default event loop is now :class:`~asyncio.ProactorEventLoop`. (Contributed by Victor Stinner in :issue:`34687`.) |