No, it's not that, I was using the term loosely. I meant that you cannot use a string value as a format string. It only exists in the form of a literal, and it

No, it's not that, I was using the term loosely. I meant that you cannot use a string value as a format string. It only exists in the form of a literal, and it gets evaluated when the interpreter evaluates that literal. You cannot store it and format it later.