If you are unfamiliar with partial function application (currying), it is important to read the subsection that covers this in Chapter 2, since this technique is sometimes used in GUI programming. However, even for readers familiar with Python, we recommend reading about QString in Chapter 1. The early chapters in Part II include back-references to the relevant pages in Part I to support readers who choose this approach. If you think that you can pick up the Python syntax simply through reading it, you might be tempted to skip Part I and dive straight into the GUI programming that begins in Part II. Because the core Python language is mostly simple and is quite small, these chapters can teach the basics of Python to a sufficient extent that real Python applications can be written. Part I is primarily a rapid conversion course aimed at non-Python programmers who are familiar with an object-oriented language, although it also has some (clearly marked) PyQt content.
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