Index: Doc/library/queue.rst
===================================================================
--- Doc/library/queue.rst	(revision 76582)
+++ Doc/library/queue.rst	(working copy)
@@ -21,7 +21,7 @@
 
 The :mod:`queue` module defines the following classes and exceptions:
 
-.. class:: Queue(maxsize)
+.. class:: Queue(maxsize=0)
 
    Constructor for a FIFO queue.  *maxsize* is an integer that sets the upperbound
    limit on the number of items that can be placed in the queue.  Insertion will
@@ -29,7 +29,7 @@
    *maxsize* is less than or equal to zero, the queue size is infinite.
 
 
-.. class:: LifoQueue(maxsize)
+.. class:: LifoQueue(maxsize=0)
 
    Constructor for a LIFO queue.  *maxsize* is an integer that sets the upperbound
    limit on the number of items that can be placed in the queue.  Insertion will
@@ -37,7 +37,7 @@
    *maxsize* is less than or equal to zero, the queue size is infinite.
 
 
-.. class:: PriorityQueue(maxsize)
+.. class:: PriorityQueue(maxsize=0)
 
    Constructor for a priority queue.  *maxsize* is an integer that sets the upperbound
    limit on the number of items that can be placed in the queue.  Insertion will