I wrote tons of perl in my life. I would rather keep writing perl than touching python. Every time I see a nice utility and see that it's written in python - tab closed.
Ah I'd say the exact opposite, python in general is pretty good but jupyter sucks because the syntax isn't compatible with regular python and I avoid it like the plague.
Take the code you find in an average notebook, copy it to a .py text file, run it with python. Does it run? In my experience the answer is usually 'no' because of some extra-ass syntax sugar jupyter has that doesn't exist in python.