PyCharm Ubuntu

Hello, I'm trying to run PyCharmCommunity in my Ubuntu machine. I was using Windows and recently switched onto Ubuntu. I want to continue using PyCharm as my IDLE, because I think it is the best one out there to code Python. I found PyCharm on the installer but when I try to run simple code like a print("Hello World") It  will not run because it is missing the interpreter. Where can I find the Python Interpreter FIle? Or how can I fix this problem?

Thank you,

Cheers.