What exactly do “u” and “r” string flags do, and what are raw string literals?

There’s not really any “raw string“; there are raw string literals, which are exactly the string literals marked by an ‘r’ before the opening quote. A “raw string literal” is a slightly different syntax for a string literal, in which a backslash, \, is taken as meaning “just a backslash” (except when it comes right … Read more