Issue 22603: add missing 'self'.  Patch by Francisco Fernández Castaño.
diff --git a/Doc/library/contextlib.rst b/Doc/library/contextlib.rst
index 9f174d7..b0688db 100644
--- a/Doc/library/contextlib.rst
+++ b/Doc/library/contextlib.rst
@@ -568,10 +568,10 @@
             self.name = name
 
         def __enter__(self):
-            logging.info('Entering: {}'.format(name))
+            logging.info('Entering: {}'.format(self.name))
 
         def __exit__(self, exc_type, exc, exc_tb):
-            logging.info('Exiting: {}'.format(name))
+            logging.info('Exiting: {}'.format(self.name))
 
 Instances of this class can be used as both a context manager::