I had some basic python knowledge before learning elixir, so maybe I could help you …
I think I went straight * for the official tutorial at https://elixir-lang.org/getting-started/introduction.html. It’s short but still covers many aspects of the language. After all, elixir is not a big language (well, compared to python).
After you are done with the official tutorial, you can take a look at a wide and ever growing assortment of high quality books at https://elixir-lang.org/learning.html, although I’d recommend shifting your focus from elixir to erlang for a moment and reading through http://learnyousomeerlang.com/. It would help you better understand some allegedly difficult parts in elixir/erlang’s concurrency model and get some appreciation (or not) for why elixir exists.
At this point you would have enough erlang and elixir knowledge to easily read through both elixir docs at https://hexdocs.pm/elixir and erlang docs at http://www.erlang.org/docs (as well as guides, http://erlang.org/doc/design_principles/users_guide.html is particularly good).
That would be a good start, in my opinion.
Or maybe not so straight, I now remember learning ruby first … Don’t know why. It’s definitely not a prerequisite for learning elixir.