Chapter 12. Regular Expressions
A regular expression is a compact notation for representing a collection of strings. What makes regular expressions so powerful is that a single regular expression can represent an unlimited number of strings—providing they meet the regular expression’s requirements. Regular expressions (which we will mostly call “regexes” from now on) are defined using a mini-language that is completely different from Python—but Python includes the re module through which we can seamlessly create and use regexes.[*]
[*] A good book on regular expressions is Mastering Regular Expressions by Jeffrey E. F. Friedl, ISBN 0596528124. It does not explicitly cover ...
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