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

A character class is an expression, and like any other expression, if not explicitly quantified it matches exactly one character (which can be any of the characters in the character class). For ...

Vincent Danen goes over some basic regular expressions. They are handy for developers and programmers, of course, and can even be employed for Google searching.

A more general solution is to use RegEx (regular expressions) to define a pattern that meets your desired requirements. Regular expressions are as complicated as they are powerful.

Take advantage of the high-level async functions in Python’s asyncio library to write more efficient Python applications.

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.