Re for Texts Surrounded by {} with Outmost {} r'\{(?:[^{}]|(?R))*\}' The expression r'\{(?:[^{}]|(?R))*\}' is a regular expression written in Python using the raw string notation (r'…'). Let’s break down the components of this regular expression: r': The raw string notation in Python, indicating that backslashes \ are treated as literal characters and not as escape…