[Python-checkins] bpo-40499: Mention that asyncio.wait() needs a non-empty aws set (GH-19900)

[Joel Rosdahl]

https://github.com/python/cpython/commit/9d74658f0a6e8a9b8d6dcf199dda886f35c6ad68
commit: 9d74658f0a6e8a9b8d6dcf199dda886f35c6ad68
branch: master
author: Joel Rosdahl <joel at rosdahl.net>
committer: GitHub <noreply at github.com>
date: 2020-05-04T14:56:00-07:00
summary:

bpo-40499: Mention that asyncio.wait() needs a non-empty aws set (GH-19900)

A similar formulation was added in bpo-21596
(db74d982d43d98040e38665d843cbc8de4a082b1) but was lost in bpo-33649
(3faaa8857a42a36383bb18425444e597fc876797).

files:
A Misc/NEWS.d/next/Documentation/2020-05-04-14-20-02.bpo-40499.tjLSo8.rst
M Doc/library/asyncio-task.rst
M Misc/ACKS

diff --git a/Doc/library/asyncio-task.rst b/Doc/library/asyncio-task.rst
index d992b0011dc66..6627bec79823a 100644
--- a/Doc/library/asyncio-task.rst
+++ b/Doc/library/asyncio-task.rst
@@ -498,6 +498,8 @@ Waiting Primitives
    set concurrently and block until the condition specified
    by *return_when*.
 
+   The *aws* set must not be empty.
+
    Returns two sets of Tasks/Futures: ``(done, pending)``.
 
    Usage::
diff --git a/Misc/ACKS b/Misc/ACKS
index 9221f6aae439e..f744de6b1f66d 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1443,6 +1443,7 @@ Mike Romberg
 Armin Ronacher
 Case Roole
 Timothy Roscoe
+Joel Rosdahl
 Erik Rose
 Mark Roseman
 Josh Rosenberg
diff --git a/Misc/NEWS.d/next/Documentation/2020-05-04-14-20-02.bpo-40499.tjLSo8.rst b/Misc/NEWS.d/next/Documentation/2020-05-04-14-20-02.bpo-40499.tjLSo8.rst
new file mode 100644
index 0000000000000..2b7eccbf0efaf
--- /dev/null
+++ b/Misc/NEWS.d/next/Documentation/2020-05-04-14-20-02.bpo-40499.tjLSo8.rst
@@ -0,0 +1 @@
+Mention that :func:`asyncio.wait` requires a non-empty set of awaitables.