How to use the regular expression functions provided by the ‘re’ library to match, search, and replace text in your Python programs. Regular expressions, or “regex,” is a system for finding complex ...

Below, I will roughly follow how I arranged the lecture on regular expressions, while also providing the relevant functions in the code. A regular expression is equivalent to some finite automaton.

Regex is a powerful – yet overlooked – tool in search and data analysis. With just a single line, you can automate what would otherwise take dozens of lines of code. Short for “regular expression,” ...