Python Pocket Reference, 2nd Edition by Mark Lutz Unconfirmed error reports are from readers. They have not yet been approved or disproved by the author or editor and represent solely the opinion of the reader. This page was updated April 16, 2003 Here's a key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem ?page-number?: reader question or request for clarification UNCONFIRMED errors and comments from readers: [72] 1st para in Function & Methods; strings are described as being mutable, but they are immutable. {96} The (single) backslash entry of Table 18. Regular expression pattern syntax; The second example given for representing a single backslash using raw strings would actually generate two backslashes (ie r'\\'). Of course, using raw strings to protect the blackslash is still a valid point. As an aside, I don't think it is even possible to represent a single backslash using raw strings. (119) 1st paragraph, 3rd line down, 2 word in; 'gadly' I think should be 'Gadfly'.