diff -r b37db216c8e0 Doc/library/argparse.rst
--- a/Doc/library/argparse.rst	Sun Oct 16 15:42:33 2016 -0700
+++ b/Doc/library/argparse.rst	Sun Oct 16 19:47:01 2016 -0700
@@ -1958,10 +1958,14 @@
    The method is called once per line read from the argument file, in order.
 
    A useful override of this method is one that treats each space-separated word
-   as an argument::
-
-    def convert_arg_line_to_args(self, arg_line):
-        return arg_line.split()
+   as an argument. The following demonstrates how to override
+   :class:`ArgumentParser` and :meth:`convert_arg_line_to_args` method ::
+
+    import argparse
+
+    class MyArgParser(argparse.ArgumentParser):
+        def convert_arg_line_to_args(self, arg_line):
+            return arg_line.split()
 
 
 Exiting methods