Thanks for the replies everybody. One thing that's still confusing to Python tourists (my word for myself since I am usually programming in a different language, but come to Python occasionally to do something) is that everyone talks about pip, when actually it seems pip3 is required to install when using Python 3. Is this no longer the case? Or do people just say "pip" when they mean "pip3"? Or are people actually still living in 2.x land? I'm talking about pip the command line command/binary executable file, not pip the concept / tool name. Similar to the distinction between the capitalized "Python" (name of the language) versus "python" (command entered on the command line/name of the binary on the system).
Any of those could be the case. Guess it's understood that you will put a 2 or 3 on the end of the pip when you want to choose one or the other. And it goes further: