Can't install PyAL package

I have been trying to install the PyAL package and cannot figure it out. I first went the way of using the installer for available packages and was met with this error that I have not been able to figure out:

Next, I tried to use the setup.py file but couldn't figure out why the option was greyed out:

Any help or insight into either would be much appreciated! Thank you!

EDIT: I forgot to mention for the installer for available packages I am using the most up to date pip and I'm using python 3.6 with the most up to date Pycharm Community.