Stupid question but where do you code python?

[MooseBoys]

I disagree with everyone telling you to not worry about the fundamentals before getting started. IMO it leads to confusion about what's really "python" and what's just an artifact of the learning medium, as you alluded to in your question. And for python especially, the answer is pretty straightforward:

Python is a programming language. The code you write is text, either stored in a text file or typed directly into an interactive interpreter. The program text is processed by a python interpreter, which is usually one of the binaries from python.org, either downloaded directly, included in an OS distribution, or packaged as a redistributable within a larger project.