userguide/executing: Use publisher instead of connection to send bulk tasks.

docs/userguide/executing.rst

@@ -122,39 +122,21 @@ establish the connection yourself and pass it to ``apply_async``:
 
 .. code-block:: python
 
-    from celery.messaging import establish_connection
-
     numbers = [(2, 2), (4, 4), (8, 8), (16, 16)]
 
     results = []
-    connection = establish_connection()
+    publisher = add.get_publisher()
     try:
         for args in numbers:
-            res = add.apply_async(args=args, connection=connection)
+            res = add.apply_async(args=args, publisher=publisher)
             results.append(res)
     finally:
-        connection.close()
+        publisher.close()
+        publisher.connection.close()
 
     print([res.get() for res in results])
 
 
-In Python 2.5 and above, you can use the ``with`` statement:
-
-.. code-block:: python
-
-    from __future__ import with_statement
-    from celery.messaging import establish_connection
-
-    numbers = [(2, 2), (4, 4), (8, 8), (16, 16)]
-
-    results = []
-    with establish_connection() as connection:
-        for args in numbers:
-            res = add.apply_async(args=args, connection=connection)
-            results.append(res)
-
-    print([res.get() for res in results])
-
 The connection timeout is the number of seconds to wait before we give up
 establishing the connection. You can set this with the ``connect_timeout``
 argument to ``apply_async``:
@@ -167,7 +149,7 @@ Or if you handle the connection manually:
 
 .. code-block:: python
 
-    connection = establish_connection(connect_timeout=3)
+    publisher = add.get_publisher(connect_timeout=3)
 
 
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