xiv Contributor List Michael Conlon sent in a grammar correction in Chapter 2 and an improve- ment in style in Chapter 1,and he initiated discussion on the technical aspects of interpreters. Benoit Girard sent in a correction to a humorous mistake in Section 5.6. Courtney Gleason and Katherine Smith wrote horsebet.py,which was used as a case study in an earlier version of the book.Their program can now be found on the website. Lee Harr submitted more corrections than we have room to list here,and indeed he should be listed as one of the principal editors of the text. James Kaylin is a student using the text.He has submitted numerous cor- rections. David Kershaw fixed the broken catTwice function in Section 3.10. Eddie Lam has sent in numerous corrections to Chapters 1,2,and 3.He also fixed the Makefile so that it creates an index the first time it is run and helped us set up a versioning scheme. Man-Yong Lee sent in a correction to the example code in Section 2.4. David Mayo pointed out that the word "unconsciously"in Chapter 1 needed to be changed to“subconsciously”. Chris McAloon sent in several corrections to Sections 3.9 and 3.10. Matthew J.Moelter has been a long-time contributor who sent in numerous corrections and suggestions to the book. Simon Dicon Montford reported a missing function definition and several typos in Chapter 3.He also found errors in the increment function in Chapter 13. ·John Ouzts corrected the definition of“return value'”in Chapter3. Kevin Parks sent in valuable comments and suggestions as to how to improve the distribution of the book. David Pool sent in a typo in the glossary of Chapter 1,as well as kind words of encouragement. Michael Schmitt sent in a correction to the chapter on files and exceptions. Robin Shaw pointed out an error in Section 13.1,where the printTime func- tion was used in an example without being defined.xiv Contributor List • Michael Conlon sent in a grammar correction in Chapter 2 and an improve￾ment in style in Chapter 1, and he initiated discussion on the technical aspects of interpreters. • Benoit Girard sent in a correction to a humorous mistake in Section 5.6. • Courtney Gleason and Katherine Smith wrote horsebet.py, which was used as a case study in an earlier version of the book. Their program can now be found on the website. • Lee Harr submitted more corrections than we have room to list here, and indeed he should be listed as one of the principal editors of the text. • James Kaylin is a student using the text. He has submitted numerous cor￾rections. • David Kershaw fixed the broken catTwice function in Section 3.10. • Eddie Lam has sent in numerous corrections to Chapters 1, 2, and 3. He also fixed the Makefile so that it creates an index the first time it is run and helped us set up a versioning scheme. • Man-Yong Lee sent in a correction to the example code in Section 2.4. • David Mayo pointed out that the word “unconsciously” in Chapter 1 needed to be changed to “subconsciously”. • Chris McAloon sent in several corrections to Sections 3.9 and 3.10. • Matthew J. Moelter has been a long-time contributor who sent in numerous corrections and suggestions to the book. • Simon Dicon Montford reported a missing function definition and several typos in Chapter 3. He also found errors in the increment function in Chapter 13. • John Ouzts corrected the definition of “return value” in Chapter 3. • Kevin Parks sent in valuable comments and suggestions as to how to improve the distribution of the book. • David Pool sent in a typo in the glossary of Chapter 1, as well as kind words of encouragement. • Michael Schmitt sent in a correction to the chapter on files and exceptions. • Robin Shaw pointed out an error in Section 13.1, where the printTime func￾tion was used in an example without being defined