You can just read "requires text when it shouldn't". But I don't recommend this terminology: in most modern computer programs, including Python 3 implementation

You can just read "requires text when it shouldn't". But I don't recommend this terminology: in most modern computer programs, including Python 3 implementations, "text" and "Unicode" mean the same thing, but outside of this context Unicode is just more precise: sometimes "text" means ASCII and sometimes it means things non-represantable in current version of Unicode.