How to use the regular expression functions provided by the ‘re’ library to match, search, and replace text in your Python programs.

We indicate regular expressions in the text using bold, show where they match using underlining, and show captures using shading. Python’s Regular Expression Language In this section we look at the ...

If you work with text, you owe it to yourself to learn regular expressions, and Patterns can help you do that--as well as figure out exactly what your search patterns are capturing.