I'm from data science field, working as machine learning engineer.
Currently I want to enrich my skillset, and also make preparation in case I need to prepare interview in the future.

My most familiar language is python, and some basic knowledge in bash and c++.

It's said that if you want the program to run efficiently, c++ is better then python, since python is written in C in the backend. However, python is much faster to fullfill algorithm, which I think would be an advantage during coding interview.

Is it recommend to start with python to learn data structure and algorithms? Or is C++ much preferred among software developers?

Any advice is appreciated, thank you!