Updated

Scripts/Modeling/Edit/CreasePlus/MayaUndoRun.py

@@ -0,0 +1,17 @@
+from functools import wraps
+import maya.cmds as cmds
+
+def mayaUndoRun(func):
+    """ Puts the wrapped `func` into a single Maya Undo action, then 
+        undoes it when the function enters the finally: block """
+    @wraps(func)
+    def _undofunc(*args, **kwargs):
+        try:
+            # start an undo chunk
+            cmds.undoInfo(openChunk=True)
+            return func(*args, **kwargs)
+        finally:
+            # after calling the func, end the undo chunk
+            cmds.undoInfo(closeChunk=True)
+
+    return _undofunc