Python Essential Reference, Fourth Edition David M. Beazley Addison Wesley Professional, ISBN 0-672-32978-6 Published June, 2009 (744 pages) “If you wish to deepen your knowledge of the language and core libraries, Python Essential Reference is a book you must have on your bookshelf.” --Mike Riley (Dr. Dobbʼs Journal) “Programmers who are heavily into Python or are trying to learn, will find themselves thumbing through this text often, to put their fingers on this particular detail or that.” -- James Pyles (LinuxPro Magazine) “Due to the reference style, this should not be your first Python book. It should absolutely be your