=== modified file 'Doc/tutorial/inputoutput.rst'
--- Doc/tutorial/inputoutput.rst	2008-01-27 15:18:18 +0000
+++ Doc/tutorial/inputoutput.rst	2008-07-16 23:06:50 +0000
@@ -308,6 +308,16 @@
      File "<stdin>", line 1, in ?
    ValueError: I/O operation on closed file
 
+It is a common practice to use the with keyword to ensure that the file is 
+being closed even if an exception is raised during the reading process. ::
+
+    >>> with open("test") as file_obj:
+    ...     read_data = file_obj.read()
+    >>> file_obj.read()
+    Traceback (most recent call last):
+      File "<stdin>", line 1, in <module>
+    ValueError: I/O operation on closed file
+
 File objects have some additional methods, such as :meth:`isatty` and
 :meth:`truncate` which are less frequently used; consult the Library Reference
 for a complete guide to file objects.