Issue #15841: The readable(), writable() and seekable() methods of io.BytesIO
and io.StringIO objects now raise ValueError when the object has been closed.
Patch by Alessandro Moura.
diff --git a/Misc/NEWS b/Misc/NEWS
index 0a35f0e..68e0d6b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -98,6 +98,10 @@
Library
-------
+- Issue #15841: The readable(), writable() and seekable() methods of
+ io.BytesIO and io.StringIO objects now raise ValueError when the object has
+ been closed. Patch by Alessandro Moura.
+
- Issue #12776,#11839: call argparse type function (specified by add_argument)
only once. Before, the type function was called twice in the case where the
default was specified and the argument was given as well. This was