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Changes between Version 3 and Version 4 of Ticket #36889

-              v3
+              v4
 Here is the current implementation:
 {{{
+{{{#!python
 def cursor_iter(cursor, sentinel, col_count, itersize):
 """
 Yield blocks of rows from a cursor and ensure the cursor is closed when
 done.
 """
 try:
 for rows in iter((lambda: cursor.fetchmany(itersize)), sentinel):
 yield rows if col_count is None else [r[:col_count] for r in rows]
 finally:
 cursor.close()
+    """
+    Yield blocks of rows from a cursor and ensure the cursor is closed when
+    done.
+    """
+    try:
+        for rows in iter((lambda: cursor.fetchmany(itersize)), sentinel):
+            yield rows if col_count is None else [r[:col_count] for r in rows]
+    finally:
+        cursor.close()
 }}}