I would like to write a regular expression in Python that is a formatted string and includes a unicode category.

The regex would look like this:

import regex as re

mystring = "abc"
m = re.search(rf"^{mystring}p{L}", "abcD")

However, this cannot work as the {L} is treated as a formatting placeholder (NameError: name 'L' is not defined)

Is there a way to create regular expressions with both constraints ?