This new edition of Learning Python provides programmers with a comprehensive and updated introduction to the interactive, object-oriented scripting language. The book introduces basic elements of the latest release of Python 2.2 and covers new features, such as list comprehensions, nested scopes, and iterators/generators. It also addresses new topics of interest to Python programmers, such as XML Processing, PyUnit, PyDoc, and wxPython. Each chapter ends with a series of exercises that tests their Python skills and helps reveal the more elusive truths about the language.