protect against sys.modules contents change

uqfoundation · Jun 17, 2022 · 13e3f80 · 13e3f80
1 parent 408b8de
commit 13e3f80
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/dill/__diff.py b/dill/__diff.py
@@ -235,6 +235,6 @@ def _imp(*args, **kwds):
 
 # memorise all already imported modules. This implies that this must be
 # imported first for any changes to be recorded
-for mod in sys.modules.values():
+for mod in list(sys.modules.values()):
     memorise(mod)
 release_gone()