I listen to python podcasts: https://talkpython.fm/ and https://www.podcastinit.com/ . Outside of purely technical subjects, I also like "talking machines" about ML: http://www.thetalkingmachines.com/ . Maybe they won't improve your "core" skills, but it's good with keeping up to date with cool recent libraries or new language developments. I use an app on android that pre-downloads podcasts on wifi and allow me to listen to them at 1.5X speed.
I wouldn't recommend audiobooks, as they require more focus and context than podcasts and it's harder to find during the commute.