There are so many ways to learn python. A simple search will give you lots of good links to various courses, tutorials, or online books to follow to learn Python. There is no shortage of material online to help get you started.
The hard part has been in finding an easy way to learn python on mobile without having to download an app with ads baked in. I understand that developers need to eat, I’m not against that, but I would much rather pay for an app, or make a donation, then be bombarded with ads. Also, I don’t know if I will only be shown ads or will my data be harvested for future ads I will see. There is so much information that can be gathered from my phone. I would much rather fork over a couple bucks then have yet another company collect data on me.