Yeah, I don't think you know python very well at all given your criticisms. The very first thing you criticize is "its reliance on mutable data structures"--uhh no, most data structures and types in python are immutable.
I'll at least agree I've met a lot of python snobs who say don't use the built in map/filter functions and things like that in favour of comprehensions, but that's hardly representative of the language.
And please. List comprehensions can be nested, just like every other language can be abused if you really want to try.