In the uncommon event I need to write a loop from scratch, and I need it to be really fast, I just rewrite that one jupyter cell in cython or numba. But that is a small piece of my codebase.

I agree that Julia code is aesthetically superior to a long chain of Pandas code. But at this point I’m used to reading a bunch of chained pandas code. Often I think of myself as more of a Pandas programmer than a Python programmer.