Avoid sure signs of a diseased mind.
diff --git a/Doc/library/shelve.rst b/Doc/library/shelve.rst
index b5e7eae..1afa19b 100644
--- a/Doc/library/shelve.rst
+++ b/Doc/library/shelve.rst
@@ -148,7 +148,7 @@
 
    # as d was opened WITHOUT writeback=True, beware:
    d['xx'] = range(4)  # this works as expected, but...
-   d['xx'].append(5)   # *this doesn't!* -- d['xx'] is STILL range(4)!!!
+   d['xx'].append(5)   # *this doesn't!* -- d['xx'] is STILL range(4)!
 
    # having opened d without writeback=True, you need to code carefully:
    temp = d['xx']      # extracts the copy