Just to clarify, I agree that Haskell can be more productive than Python, I was talking about productivity of Python (or, for that matter, Lisp) compared to C-l

Just to clarify, I agree that Haskell can be more productive than Python, I was talking about productivity of Python (or, for that matter, Lisp) compared to C-like languages of the era. But with Haskell's type inference, the Python's advantage is lost (if we forget, for a moment, extremely well-designed Python's standard library with focus on convenience).