People ought to check the docs section of any programming language they want to learn, it literally answers all your questions. smh. https://wiki.python.org/moin/BeginnersGuide
If you aren't used to reading documentations, watch a tutorial on youtube and then do some side projects(small game, learn a framework like django etc.). Then learn C or CPP to learn the more advanced stuff that are kept hidden. Then you can start making stuff.