Python Essential Reference
Excellent introduction as well as detailed reference to the language. Book walks the reader through all of the features of the language; syntax, types, lists, tuples, objects, exceptions, classes, modules and packaging. The second part of the book goes into detail on all of the features which the run time libaries supply such as pickling(serialization), math, OS specific, threads, queues, network, CGI, mime. Final section details two methods of embedding/interfacing the language within other run time environments. (New Riders, 319 pages)