not that anyone asked, but I"d only support:
2a) Adding a str.dedent() method
2b) Creating a constant-folding peephole optimization for methods on immutable literals
and frankly, it's a much lighter lift to get approval than:
1) Creating a new type of string literal which compiles to a dedented form of multiline string
Also -- more useful -- dedent() is helpful for non-literals as well.
Other than docstrings, the case for literals is pretty small, and docstrings are already auto-cleaned up.
in all of the code I've ever written in Python (and that's quite a
lot...) I've never actually had a case where I this feature would have made a significant difference to the code I wrote.
exactly -- I do have one case -- but that's for an instructional exercise where we are keeping things simple -- in operational code that string would have been in a file, or database, or ....
-- Christopher Barker, PhD
Python Language Consulting