Issue #21905: Avoid RuntimeError in pickle.whichmodule() when sys.modules is mutated while iterating.
Patch by Olivier Grisel.
diff --git a/Misc/ACKS b/Misc/ACKS
index c91d643..3095047 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -494,6 +494,7 @@
Grant Griffin
Andrea Griffini
Duncan Grisby
+Olivier Grisel
Fabian Groffen
Eric Groo
Dag Gruneau
diff --git a/Misc/NEWS b/Misc/NEWS
index 9915e4e..6112a00 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -22,6 +22,9 @@
Library
-------
+- Issue #21905: Avoid RuntimeError in pickle.whichmodule() when sys.modules
+ is mutated while iterating. Patch by Olivier Grisel.
+
- Issue #22219: The zipfile module CLI now adds entries for directories
(including empty directories) in ZIP file.