1 files changed, 16 insertions, 3 deletions
diff --git a/Doc/includes/mp_workers.py b/Doc/includes/mp_workers.py
index 3b92269..e64a156 100644
--- a/Doc/includes/mp_workers.py
+++ b/Doc/includes/mp_workers.py
@@ -1,3 +1,16 @@
+#
+# Simple example which uses a pool of workers to carry out some tasks.
+#
+# Notice that the results will probably not come out of the output
+# queue in the same in the same order as the corresponding tasks were
+# put on the input queue.  If it is important to get the results back
+# in the original order then consider using `Pool.map()` or
+# `Pool.imap()` (which will save on the amount of code needed anyway).
+#
+# Copyright (c) 2006-2008, R Oudkerk
+# All rights reserved.
+#
+
 import time
 import random
 
@@ -55,9 +68,9 @@ def test():
         Process(target=worker, args=(task_queue, done_queue)).start()
 
     # Get and print results
-    print('Unordered results:')
+    print 'Unordered results:'
     for i in range(len(TASKS1)):
-        print('\t', done_queue.get())
+        print '\t', done_queue.get()
 
     # Add more tasks using `put()`
     for task in TASKS2:
@@ -65,7 +78,7 @@ def test():
 
     # Get and print some more results
     for i in range(len(TASKS2)):
-        print('\t', done_queue.get())
+        print '\t', done_queue.get()
 
     # Tell child processes to stop
     for i in range(NUMBER_OF_PROCESSES):