[Python-checkins] bpo-39493: Fix definition of IO.closed in typing.py (GH-18265)

[Miss Islington (bot)]

https://github.com/python/cpython/commit/58076df0c59677111dc77b72852cb2a313a2ef91
commit: 58076df0c59677111dc77b72852cb2a313a2ef91
branch: 3.8
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: GitHub <noreply at github.com>
date: 2020-01-29T21:42:38-08:00
summary:

bpo-39493: Fix definition of IO.closed in typing.py (GH-18265)

(cherry picked from commit 2e6569b6692298fcc9aae0df3eb3181adb2a5099)

Co-authored-by: Shantanu <hauntsaninja at users.noreply.github.com>

files:
A Misc/NEWS.d/next/Library/2020-01-30-01-13-19.bpo-39493.CbFRi7.rst
M Lib/typing.py

diff --git a/Lib/typing.py b/Lib/typing.py
index 69f6d9873490a..83d310f3c0dd3 100644
--- a/Lib/typing.py
+++ b/Lib/typing.py
@@ -1848,6 +1848,7 @@ def name(self) -> str:
     def close(self) -> None:
         pass
 
+    @property
     @abstractmethod
     def closed(self) -> bool:
         pass
diff --git a/Misc/NEWS.d/next/Library/2020-01-30-01-13-19.bpo-39493.CbFRi7.rst b/Misc/NEWS.d/next/Library/2020-01-30-01-13-19.bpo-39493.CbFRi7.rst
new file mode 100644
index 0000000000000..b676629a4414a
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2020-01-30-01-13-19.bpo-39493.CbFRi7.rst
@@ -0,0 +1 @@
+Mark ``typing.IO.closed`` as a property
\ No newline at end of file