I think you are conflating Guido's attitude to FP with Python too much here. All the FP primitives in Python were championed by other people. In your linked blog post, Guido is talking about purely functional languages and how Python, like Lisp, is not like that. Which is true but doesn't make Python bad for (or "hostile" to) writing functional code.

In fact Python taught a generation of programmers to love functional code, because of the big speedup available from stringing together C-native builtins with higher order functions.