Use the preferred form of raise statements in the docs.
diff --git a/Doc/tools/sphinxext/suspicious.py b/Doc/tools/sphinxext/suspicious.py
index ae11793..37829c3 100644
--- a/Doc/tools/sphinxext/suspicious.py
+++ b/Doc/tools/sphinxext/suspicious.py
@@ -159,7 +159,7 @@
         except IOError: return
         for i, row in enumerate(csv.reader(f)):
             if len(row) != 4:
-                raise ValueError, "wrong format in %s, line %d: %s" % (filename, i+1, row)
+                raise ValueError("wrong format in %s, line %d: %s" % (filename, i+1, row))
             docname, lineno, issue, text = row
             docname = docname.decode('utf-8')
             if lineno: lineno = int(lineno)