pyenv says python 3 is not installed

[iFunKtion]

Ok, well, I'm developing a web app and trying to follow this tutorial https://learnpythonthehardway.org/book/ex52.html as it is one of the better ones on the net, though he insists on learning Python 2.7 (this book is a little old now I think) as I have been learning python 3, and what with trying to install various modules over the past month, I fear this linux box is a proper mess pythonwise, some things have been installed using pip, some via apt-get, anaconda is on here somewhere too. So i was kind of hoping that I could stop all that nonsense and do projects in a contained environment and just use the dependencies I need that way.