How to install Qiime2 (in particular Artifact API) with current conda environment? Mac OSX

I should add: we may just leapfrog on up to 3.7:

Since it sounds like you want to use :qiime2: with an existing workflow (which I presume depends on python 3.6), I would recommend just installing in a separate (3.5) env following the normal installation instructions, then switch envs when you need to use qiime. A bit inconvenient, but would make your life much easier!