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

A regular expression (regex, regexp) is a string-searching algorithm, which you can use for making a search pattern in a sequence of characters or strings. Usually, these patterns are used to find or ...

Which problems regular expressions can help you solve, and which they cannot. Regular expression syntax, including the difference between literal characters and metacharacters. How to use regular ...

This chapter’s first section introduces and explains all the key regular expression concepts and shows pure regular expression syntax—it makes minimal reference to Python itself. Then the second ...

Python’s regular expressions are greedy by default: in ambiguous situations they will match the longest string possible. The non-greedy version of the curly brackets, which matches the shortest string ...