#7407: specify default maxsize value; patch by Floris Bruynooghe
diff --git a/Doc/library/queue.rst b/Doc/library/queue.rst
index 65b16a3..4caa1bd 100644
--- a/Doc/library/queue.rst
+++ b/Doc/library/queue.rst
@@ -26,14 +26,14 @@
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
block once this size has been reached, until queue items are consumed. If
*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
@@ -42,7 +42,7 @@
.. versionadded:: 2.6
-.. 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