Beazley, David M. <br/><br/>
Python :  essential reference 

 - 4th ed. 
 - Boston:  Addison-Wesley,  2009. 
 - xxi, 717 p. 
<br/><br/><label>ISBN: </label>9780672329784 0672329786 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Python programming
<br/><br/><label>Dewey Class. No.: </label>005.1337 BEA