Case-insensitive string comparison without using lower or upper

Question

I am trying to compare two string and ignore case- sensitive but i don't want to use .lower() or .upper(). Is there another way of doing this?

Answer 1

example1 = "hello"
example2 = "HeLlo"

if example1.casefold()==example2.casefold():
    #do something

This will work without needing upper() or lower(). Might not work for non-ASCII characters.