• Mar 28, 2026 Pythex s in the username and domain parts. Capturing Groups: Parentheses `()` create capturing groups. These allow you to extract specific parts of a matched string. If we modify our email regex to `([a-zA-Z0-9._%+-]+)@([a-zA-Z0-9.-]+)\.([a-zA-Z]{2,})`, Pythex will show three separate captu By Alfonso VonRueden
