Help with re.search()

[Sigwulfr]

Hi

I need help writing a re.search() method inside the Book class (see below), that will allow me to search for a string or part of a string, and return whether one of the three books has a title that matches or partly matches the search string. Something like:

    def search_string(what do I enter here?):
        if re.search(what do I enter here?) 
            return print(f"{search_string} has been found in the following book titles: {self.title.title()}")
        else:
            return print(f"Sorry. But no book titles match your search {search_string}")

import re
class Book:
    def __init__(self, title):
        self.title = title
    def __str__(self):
        return self.title.title() + " is a great book!"

dune = Book('dune')
lotr = Book('lord of the rings')
dragonlance = Book('dragonlance')
print(dune)

I hope you can help me out.

In advance, thanks for helping me out.

Best regards Chris