I personally believe that you should consider learning C++. Here is my suggestion from a litltle bit ago for C++: HELP! I need feedback - #11 by Connor
But if you do insist…
While in college, I learned Python using Zybooks but I think it’s paid: Programming in Python 3 | zyBooks
Alternatively, you could use CodeAcademy which I heard is good too: Learn Python 3 | Codecademy